Check DNS, Urls + Redirects, Certificates and Content of your Website

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Top config

Checked:
10.03.2022 20:58:02

Older results

A - 10.03.2022 20:23:00

A - 06.10.2021 12:14:24

1. IP-Addresses

Host	Type	IP-Address	is auth.	∑ Queries	∑ Timeout
d2uplus.co.uk	A	76.76.21.21 Walnut/California/United States (US) - Amazon.com, Inc. No Hostname found	yes	1	0
	AAAA		yes
www.d2uplus.co.uk	A	76.76.21.21 Walnut/California/United States (US) - Amazon.com, Inc. No Hostname found	yes	1	0
	AAAA		yes
*.d2uplus.co.uk	A	Name Error	yes
	AAAA	Name Error	yes
	CNAME	Name Error	yes

2. DNSSEC

Zone (*)	DNSSEC - Informations

Zone: (root)
(root)	1 DS RR published


	DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=


	• Status: Valid because published


	2 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 9799, Flags 256


	Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 23.03.2022, 00:00:00 +, Signature-Inception: 02.03.2022, 00:00:00 +, KeyTag 20326, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: uk
uk	1 DS RR in the parent zone found


	DS with Algorithm 8, KeyTag 43876, DigestType 2 and Digest oQftKsG9FNkkFzvH6CehFTWCByOU+Scro34jU7xllgM=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner uk., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 23.03.2022, 17:00:00 +, Signature-Inception: 10.03.2022, 16:00:00 +, KeyTag 9799, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 9799 used to validate the DS RRSet in the parent zone


	2 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 43056, Flags 256


	Public Key with Algorithm 8, KeyTag 43876, Flags 257 (SEP = Secure Entry Point)


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner uk., Algorithm: 8, 1 Labels, original TTL: 3600 sec, Signature-expiration: 24.03.2022, 12:38:30 +, Signature-Inception: 10.03.2022, 11:42:57 +, KeyTag 43876, Signer-Name: uk


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 43876 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 43876, DigestType 2 and Digest "oQftKsG9FNkkFzvH6CehFTWCByOU+Scro34jU7xllgM=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: co.uk
co.uk	1 DS RR in the parent zone found


	DS with Algorithm 8, KeyTag 33621, DigestType 2 and Digest uRmdi3/KcQfXjEGNHRvJ6f6dm5sYe9E8ltxLZYJCXNg=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner co.uk., Algorithm: 8, 2 Labels, original TTL: 300 sec, Signature-expiration: 24.03.2022, 18:54:19 +, Signature-Inception: 10.03.2022, 18:09:30 +, KeyTag 43056, Signer-Name: uk


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 43056 used to validate the DS RRSet in the parent zone


	1 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 33621, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner co.uk., Algorithm: 8, 2 Labels, original TTL: 300 sec, Signature-expiration: 14.04.2022, 08:21:37 +, Signature-Inception: 10.03.2022, 07:33:16 +, KeyTag 33621, Signer-Name: co.uk


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 33621 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 33621, DigestType 2 and Digest "uRmdi3/KcQfXjEGNHRvJ6f6dm5sYe9E8ltxLZYJCXNg=" validates local Key with the same values

Zone: d2uplus.co.uk
d2uplus.co.uk	0 DS RR in the parent zone found


	DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "8uh54rdeb34g1lqhuh7j9ok3rte887ll" between the hashed NSEC3-owner "8uh4vm78au3s40mjliq86r8t3b58o8d6" and the hashed NextOwner "8uhma92tnt0sj8fskflvpqbfvra55p6c". So the parent zone confirmes the not-existence of a DS RR. Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner 8uh4vm78au3s40mjliq86r8t3b58o8d6.co.uk., Algorithm: 8, 3 Labels, original TTL: 10800 sec, Signature-expiration: 10.04.2022, 05:23:38 +, Signature-Inception: 06.03.2022, 04:45:24 +, KeyTag 33621, Signer-Name: co.uk


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "g9f1kiihm8m9vhjk7lrvetbqceogjiqp" as Owner. That's the Hash of "co.uk" with the NextHashedOwnerName "g9f5o8q1lbtukbv4frd3pu0huipap422". So that domain name is the Closest Encloser of "d2uplus.co.uk". Opt-Out: True. Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner g9f1kiihm8m9vhjk7lrvetbqceogjiqp.co.uk., Algorithm: 8, 3 Labels, original TTL: 10800 sec, Signature-expiration: 12.04.2022, 14:15:03 +, Signature-Inception: 08.03.2022, 14:00:57 +, KeyTag 33621, Signer-Name: co.uk


	0 DNSKEY RR found




Zone: www.d2uplus.co.uk
www.d2uplus.co.uk	0 DS RR in the parent zone found

3. Name Servers

Domain	Nameserver	NS-IP
www.d2uplus.co.uk	• ns1.stackdns.com / ns-eu-west2-a-pdwc		•
d2uplus.co.uk	• ns1.stackdns.com / ns-eu-west2-a-pdwc	35.197.225.59 London/England/United Kingdom (GB) - Google LLC	•
	• ns2.stackdns.com / ns-eu-west1-a-4cz1	146.148.28.88 Brussels/Brussels Capital/Belgium (BE) - Google LLC	•
	• ns3.stackdns.com / ns-eu-west3-a-hm0z	35.198.79.191 Frankfurt/Hesse/Germany (DE) - Google LLC	•
	• ns4.stackdns.com / ns-us-east1-a-xxdn	104.196.137.209 North Charleston/South Carolina/United States (US) - Google LLC	•
co.uk	• dns1.nic.uk	2a01:618:400::1 Oxford/England/United Kingdom (GB) - Nominet	•
	• dns2.nic.uk	2401:fd80:400::1 London/England/United Kingdom (GB) - Nominet UK	•
	• dns3.nic.uk	2a01:618:404::1 Oxford/England/United Kingdom (GB) - Nominet	•
	• dns4.nic.uk	2401:fd80:404::1 Georgetown/Queensland/Australia (AU) - Nominet UK	•
	• nsa.nic.uk / TLD_Host2.Frankfurt_Node1	2001:502:ad09::3 Sterling/Virginia/United States (US) - NeuStar, Inc.	•
	• nsb.nic.uk / TLD_Host1.Frankfurt_Node1	2001:502:2eda::3 Sterling/Virginia/United States (US) - NeuStar, Inc.	•
	• nsc.nic.uk / TLD_Host2.Frankfurt_Node1	2610:a1:1009::3 Fort Lauderdale/Florida/United States (US) - NeuStar, Inc.	•
	• nsd.nic.uk / TLD_Host2.Amsterdam_Node1	2610:a1:1010::3 Chicago/Illinois/United States (US) - NeuStar, Inc.	•
uk	• dns1.nic.uk		•
	• dns2.nic.uk		•
	• dns3.nic.uk		•
	• dns4.nic.uk		•
	• nsa.nic.uk / TLD_Host2.Frankfurt_Node1		•
	• nsb.nic.uk / TLD_Host2.Frankfurt_Node1		•
	• nsc.nic.uk / TLD_Host1.Frankfurt_Node1		•
	• nsd.nic.uk / TLD_Host1.Amsterdam_Node1		•

4. SOA-Entries

Domain:	uk
Zone-Name:	uk
Primary:	dns1.nic.uk
Mail:	hostmaster.nic.uk
Serial:	1406179355
Refresh:	7200
Retry:	900
Expire:	2419200
TTL:	10800
num Entries:	8

Domain:	co.uk
Zone-Name:	co.uk
Primary:	dns1.nic.uk
Mail:	hostmaster.nominet.org.uk
Serial:	1312169194
Refresh:	900
Retry:	300
Expire:	2419200
TTL:	10800
num Entries:	8

Domain:	d2uplus.co.uk
Zone-Name:	d2uplus.co.uk
Primary:	ns1.stackdns.com
Mail:	hostmaster.stackdns.com
Serial:	1644422336
Refresh:	1800
Retry:	900
Expire:	1209600
TTL:	300
num Entries:	4

Domain:	www.d2uplus.co.uk
Zone-Name:	d2uplus.co.uk
Primary:	ns1.stackdns.com
Mail:	hostmaster.stackdns.com
Serial:	1644422336
Refresh:	1800
Retry:	900
Expire:	1209600
TTL:	300
num Entries:	1

5. Screenshots

Startaddress: https://www.d2uplus.co.uk, address used: https://www.d2uplus.co.uk/, Screenshot created 2022-03-10 20:59:50 +00:0

Mobil (412px x 732px)

348 milliseconds

Screenshot mobile - https://www.d2uplus.co.uk/

Mobil + Landscape (732px x 412px)

404 milliseconds

Screenshot mobile landscape - https://www.d2uplus.co.uk/

Screen (1280px x 1680px)

838 milliseconds

Screenshot Desktop - https://www.d2uplus.co.uk/

Mobile- and other Chrome-Checks

	width	height
visual Viewport	396	732
content Size	396	5410

Good: No horizontal scrollbar. Content-size width = visual Viewport width.

Chrome-Connection: secure. secure connection settings. The connection to this site is encrypted and authenticated using TLS 1.3, X25519, and AES_128_GCM.

Chrome-Resources : secure. all served securely. All resources on this page are served securely.

6. Url-Checks

show header:

Domainname	Http-Status	redirect	Sec.	G
• http://d2uplus.co.uk/ 76.76.21.21	308	https://d2uplus.co.uk/ Html is minified: 100.00 %	0.043	A
Date: Thu, 10 Mar 2022 19:59:00 GMT
Content-Type: text/plain
Transfer-Encoding: chunked
Connection: close
Location: https://d2uplus.co.uk/
Refresh: 0;url=https://d2uplus.co.uk/
server: Vercel
x-vercel-id: fra1::f7rsl-1646942340906-d8385134a6a1

• http://www.d2uplus.co.uk/ 76.76.21.21	308	https://www.d2uplus.co.uk/ Html is minified: 100.00 %	0.040	A
Date: Thu, 10 Mar 2022 19:59:00 GMT
Content-Type: text/plain
Transfer-Encoding: chunked
Connection: close
Location: https://www.d2uplus.co.uk/
Refresh: 0;url=https://www.d2uplus.co.uk/
server: Vercel
x-vercel-id: fra1::xdx49-1646942340966-a03284367ee0

• https://d2uplus.co.uk/ 76.76.21.21	308	https://www.d2uplus.co.uk/ Html is minified: 100.00 %	4.190	A
Date: Thu, 10 Mar 2022 19:59:01 GMT
Content-Type: text/plain
Transfer-Encoding: chunked
Connection: close
location: https://www.d2uplus.co.uk/
Refresh: 0;url=https://www.d2uplus.co.uk/
server: Vercel
x-vercel-id: fra1::255q6-1646942341039-067498ad95f0
strict-transport-security: max-age=63072000
cache-control: public, max-age=0, must-revalidate
x-vercel-cache: MISS

• https://www.d2uplus.co.uk/ 76.76.21.21 Inline-JavaScript (∑/total): 1/0 Inline-CSS (∑/total): 1/1951	200	Html is minified: 123.38 % Other inline scripts (∑/total): 1/155	4.210	A
small visible content (num chars: 154) Home Sign In enquiries@d2uplus.co.uk \| 01202 644545 Terms & Conditions Register your interest Definitions © Copyright 2020 - 2022. DELIVER 2 U LIMITED
Date: Thu, 10 Mar 2022 19:59:05 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
x-matched-path: /
cache-control: public, max-age=0, must-revalidate
etag: W/"3e75fa33d209f1a44d942ca777fadd7e83a473c03349d813973057df2436725c"
access-control-allow-origin: *
content-disposition: inline; filename="index"
Age: 44580
X-Vercel-Cache: HIT
server: Vercel
x-vercel-id: fra1:fra1::g4pfs-1646942345987-0b79cac98d57
strict-transport-security: max-age=63072000
Content-Encoding: gzip

• http://d2uplus.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 76.76.21.21 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	404	Html is minified: 100.00 % Other inline scripts (∑/total): 0/0	0.227	A
Not Found
Visible Content: {"error":{"message":"Token not found","code":"not_found","statusCode":404,"meta":{}}}
Date: Thu, 10 Mar 2022 19:59:11 GMT
Content-Type: application/json; charset=utf-8
Content-Length: 85
Connection: close
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: Authorization, Accept, Content-Type
Access-Control-Allow-Methods: OPTIONS, GET, POST, PUT, PATCH, DELETE
server: Vercel
x-vercel-id: fra1::l22cp-1646942351441-e40280b78166

• http://www.d2uplus.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 76.76.21.21 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	404	Html is minified: 100.00 % Other inline scripts (∑/total): 0/0	0.207	A
Not Found
Visible Content: {"error":{"message":"Token not found","code":"not_found","statusCode":404,"meta":{}}}
Date: Thu, 10 Mar 2022 19:59:12 GMT
Content-Type: application/json; charset=utf-8
Content-Length: 85
Connection: close
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: Authorization, Accept, Content-Type
Access-Control-Allow-Methods: OPTIONS, GET, POST, PUT, PATCH, DELETE
server: Vercel
x-vercel-id: fra1::68lb8-1646942352012-b207999468b5

• https://76.76.21.21/ 76.76.21.21	308	https://vercel.com/ Html is minified: 100.00 %	2.176	N
Certificate error: RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Date: Thu, 10 Mar 2022 19:59:12 GMT
Content-Type: text/plain
Transfer-Encoding: chunked
Connection: close
location: https://vercel.com/
Refresh: 0;url=https://vercel.com/
server: Vercel
x-vercel-id: fra1::gs982-1646942352635-10cf46a32791
strict-transport-security: max-age=63072000
cache-control: public, max-age=0, must-revalidate
x-vercel-cache: MISS

• https://vercel.com/ Inline-JavaScript (∑/total): 4/888 Inline-CSS (∑/total): 17/28336	200	Html is minified: 120.48 % Other inline scripts (∑/total): 5/32379	4.280	A
Date: Thu, 10 Mar 2022 19:59:15 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
x-download-options: noopen
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-xss-protection: 0
x-frame-options: DENY
content-security-policy: default-src 'self' vercel.com .vercel.com .stripe.com twitter.com .twitter.com .github.com https://.googletagmanager.com: wss://.vercel.com localhost: chrome-extension://;script-src 'self' 'unsafe-eval' 'unsafe-inline' www.google.com www.googletagmanager.com www.google-analytics.com www.gstatic.com .googleapis.com .youtube.com .youtube-nocookie.com .ytimg.com .twimg.com .coinbase.com .zdassets.com cdn.sift.com cdn.segment.com cdn.ampproject.org cdn.koala.live cdn.heapanalytics.com heapanalytics.com vercel.com .vercel.com .stripe.com twitter.com .twitter.com .github.com https://.googletagmanager.com: wss://.vercel.com localhost: chrome-extension://;child-src .youtube.com .youtube-nocookie.com .stripe.com www.google.com .coinbase.com github.com vercel.com .vercel.com .stripe.com twitter.com .twitter.com .github.com https://.googletagmanager.com:* wss://.vercel.com localhost: chrome-extension://;style-src 'self' 'unsafe-inline' .googleapis.com heapanalytics.com vercel.com .vercel.com .stripe.com twitter.com .twitter.com .github.com https://.googletagmanager.com: wss://.vercel.com localhost: chrome-extension://;img-src blob: data:;media-src 'self' videos.ctfassets.net blob: vercel.com .vercel.com .stripe.com twitter.com .twitter.com .github.com https://.googletagmanager.com: wss://.vercel.com localhost: chrome-extension://;connect-src ;font-src .vercel.com .gstatic.com;worker-src blob:
x-dns-prefetch-control: on
feature-policy: fullscreen 'self'; camera 'none'
x-matched-path: /
referrer-policy: origin-when-cross-origin
x-content-type-options: nosniff
cache-control: public, max-age=0, must-revalidate
content-disposition: inline
access-control-allow-origin: *
etag: W/"3d576742b3791d3697e423ef2747477e35277b6e22980b13012212ec093df3d2"
x-vercel-cache: HIT
age: 10434
server: Vercel
x-vercel-id: fra1::jmqj2-1646942355529-e5bb242e0cfb
Content-Encoding: gzip

7. Comments

	1. General Results, most used to calculate the result
A	name "d2uplus.co.uk" is domain, public suffix is ".co.uk", top-level-domain is ".uk", top-level-domain-type is "country-code", Country is United Kingdom of Great Britain and Northern Ireland, tld-manager is "Nominet UK", num .uk-domains preloaded: 3776 (complete: 175327)
A	Good: All ip addresses are public addresses
	Warning: Only one ip address found: d2uplus.co.uk has only one ip address.
	Warning: Only one ip address found: www.d2uplus.co.uk has only one ip address.
	Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: d2uplus.co.uk has no ipv6 address.
	Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: www.d2uplus.co.uk has no ipv6 address.
A	Good: No asked Authoritative Name Server had a timeout
A	https://76.76.21.21/ 76.76.21.21	308	https://vercel.com/	Correct redirect https to https
A	Good: destination is https
A	Good - only one version with Http-Status 200
A	Good: one preferred version: www is preferred
A	Good: No cookie sent via http.
A	Good: every https has a Strict Transport Security Header
A	Good: HSTS max-age is long enough, 31536000 seconds = 365 days
	Warning: HSTS preload sent, but not in Preload-List. Never send a preload directive if you don't know what preload means. Check https://hstspreload.org/ to learn the basics about the Google-Preload list. If you send a preload directive, you should immediately add your domain to the HSTS preload list via https://hstspreload.org/ . If Google accepts the domain, so the status is "pending": Note that new entries are hardcoded into the Chrome source code and can take several months before they reach the stable version. So you will see this message some months. If you don't want that or if you don't understand "preload", but if you send a preload directive and if you have correct A-redirects, everybody can add your domain to that list. Then you may have problems, it's not easy to undo that. So if you don't want your domain preloaded, remove the preload directive.
	HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
A	Good: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
	http://d2uplus.co.uk/ 76.76.21.21		0;url=https://d2uplus.co.uk/	Info: Non-standard Header "Refresh" found.
	http://www.d2uplus.co.uk/ 76.76.21.21		0;url=https://www.d2uplus.co.uk/	Info: Non-standard Header "Refresh" found.
	https://d2uplus.co.uk/ 76.76.21.21		0;url=https://www.d2uplus.co.uk/	Info: Non-standard Header "Refresh" found.
	https://76.76.21.21/ 76.76.21.21		0;url=https://vercel.com/	Info: Non-standard Header "Refresh" found.
A	http://d2uplus.co.uk/ 76.76.21.21	308	https://d2uplus.co.uk/	Correct redirect http - https with the same domain name
A	http://www.d2uplus.co.uk/ 76.76.21.21	308	https://www.d2uplus.co.uk/	Correct redirect http - https with the same domain name
N	https://76.76.21.21/ 76.76.21.21	308	https://vercel.com/	Error - Certificate isn't trusted, RemoteCertificateNameMismatch, RemoteCertificateChainErrors
	Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain d2uplus.co.uk, 1 ip addresses.
	Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain www.d2uplus.co.uk, 1 ip addresses.
	2. Header-Checks
	3. DNS- and NameServer - Checks
A	Info:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
A	Info:: 2 Queries complete, 2 with IPv6, 0 with IPv4.
A	Good: All DNS Queries done via IPv6.
A	Good: Some ip addresses of name servers found with the minimum of two DNS Queries. One to find the TLD-Zone, one to ask the TLD-Zone.ns1.stackdns.com (35.197.225.59), ns2.stackdns.com (146.148.28.88), ns3.stackdns.com (35.198.79.191), ns4.stackdns.com (104.196.137.209)
A	Good (1 - 3.0):: An average of 0.5 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 4 different Name Servers found: ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com, 4 Name Servers included in Delegation: ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com, 4 Name Servers included in 1 Zone definitions: ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com, 1 Name Servers listed in SOA.Primary: ns1.stackdns.com.
A	Good: Only one SOA.Primary Name Server found.: ns1.stackdns.com.
A	Good: SOA.Primary Name Server included in the delegation set.: ns1.stackdns.com.
A	Good: Consistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Ordered list of name servers: ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com
A	Good: All Name Server Domain Names have a Public Suffix.
A	Good: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
A	Good: All Name Server ip addresses are public.
A	Good: Minimal 2 different name servers (public suffix and public ip address) found: 4 different Name Servers found
	Warning: No Name Server IPv6 address found. IPv6 is the future, so your name servers should be visible via IPv6.: 4 different Name Servers found
	Warning: All Name Servers have the same Top Level Domain / Public Suffix. If there is a problem with that Top Level Domain, your domain may be affected. Better: Use Name Servers with different top level domains.: 4 Name Servers, 1 Top Level Domain: com
	Warning: All Name Servers have the same domain name. If there is a problem with that domain name (or with the name servers of that domain name), your domain may be affected. Better: Use Name Servers with different domain names / different top level domains.: Only one domain name used: stackdns.com
A	Good: Name servers with different Country locations found: 4 Name Servers, 4 Countries: BE, DE, GB, US
A	Info: Ipv4-Subnet-list: 4 Name Servers, 3 different subnets (first Byte): 104., 146., 35., 4 different subnets (first two Bytes): 104.196., 146.148., 35.197., 35.198., 4 different subnets (first three Bytes): 104.196.137., 146.148.28., 35.197.225., 35.198.79.
A	Good: Name Server IPv4-addresses from different subnet found:
A	Good: Nameserver supports TCP connections: 4 good Nameserver
A	Good: Nameserver supports Echo Capitalization: 4 good Nameserver
A	Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 4 good Nameserver
A	Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 4 good Nameserver
	Nameserver doesn't pass all EDNS-Checks: dns1.nic.uk: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
	Nameserver doesn't pass all EDNS-Checks: dns1.nic.uk / 2a01:618:400::1: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
	Nameserver doesn't pass all EDNS-Checks: dns2.nic.uk: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
	Nameserver doesn't pass all EDNS-Checks: dns2.nic.uk / 2401:fd80:400::1: OP100: fatal timeout. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
	Nameserver doesn't pass all EDNS-Checks: dns3.nic.uk: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
	Nameserver doesn't pass all EDNS-Checks: dns3.nic.uk / 2a01:618:404::1: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
	Nameserver doesn't pass all EDNS-Checks: dns4.nic.uk: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
	Nameserver doesn't pass all EDNS-Checks: dns4.nic.uk / 2401:fd80:404::1: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
A	Good: All SOA have the same Serial Number
	Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.
	4. Content- and Performance-critical Checks
A	Good: All checks /.well-known/acme-challenge/random-filename without redirects answer with the expected http status 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge should work. If it doesn't work: Check your vHost configuration (apachectl -S, httpd -S, nginx -T). Every combination of port and ServerName / ServerAlias (Apache) or Server (Nginx) must be unique. Merge duplicated entries in one vHost. If you use an IIS, extensionless files must be allowed in the /.well-known/acme-challenge subdirectory. Create a web.config in that directory. Content: <configuration><system.webServer><staticContent><mimeMap fileExtension="." mimeType="text/plain" /></staticContent></system.webServer></configuration>. If you have a redirect http ⇒ https, that's ok, Letsencrypt follows such redirects to port 80 / 443 (same or other server). There must be a certificate. But the certificate may be expired, self signed or with a not matching domain name. Checking the validation file Letsencrypt ignores such certificate errors. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
A	Good: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
	https://www.d2uplus.co.uk/ 76.76.21.21	200		Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
	https://vercel.com/	200		Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
	https://www.d2uplus.co.uk/ 76.76.21.21	200		Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
	https://vercel.com/	200		Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
A	Good: Every https connection via port 443 supports the http/2 protocol via ALPN.
A	Good: Some script Elements (type text/javascript) with a src-Attribute have a defer / async - Attribute. So loading and executing these JavaScripts doesn't block parsing and rendering the Html-Output.
	https://www.d2uplus.co.uk/ 76.76.21.21	200		Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 1 script elements without defer/async.
	Warning: CSS / JavaScript found without Compression. Compress these ressources, gzip, deflate, br are checked. 1 external CSS / JavaScript files without GZip found - 11 with GZip, 12 complete
	Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 52 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 1 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 53 complete.
	Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 141 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 141 complete.
A	Good: All checked attribute values are enclosed in quotation marks (" or ').
A	Good: Some img-elements have a valid alt-attribute.: 57 img-elements found, 56 img-elements with correct alt-attributes (defined, not an empty value).
	Wrong: img-elements without alt-attribute or empty alt-attribute found. The alt-attribute ("alternative") is required and should describe the img. So Screenreader and search engines are able to use these informations.: 1 img-elements without alt-attribute, 0 img-elements with empty alt-attribute found.
A	Good: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx
A	Duration: 121184 milliseconds, 121.184 seconds

8. Connections

Domain

Port

Cert.

Protocol

KeyExchange

Strength

Cipher

Strength

HashAlgorithm

OCSP stapling

Domain/KeyExchange

IP/Strength

Port/Cipher

Cert./Strength

Protocol/HashAlgorithm

OCSP stapling

d2uplus.co.uk

76.76.21.21

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

d2uplus.co.uk

76.76.21.21

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

http/2 via ALPN supported
SNI required

Tls.1.2
no Tls.1.1
no Tls.1.0

http/2 via ALPN supported
SNI required

Tls.1.2
no Tls.1.1
no Tls.1.0

Chain - too much certificates, don't send root certificates	1	CN=d2uplus.co.uk
	2	CN=R3, O=Let's Encrypt, C=US
	3	CN=ISRG Root X1, O=Internet Security Research Group, C=US

www.d2uplus.co.uk

76.76.21.21

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

www.d2uplus.co.uk

76.76.21.21

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

http/2 via ALPN supported
SNI required

Tls.1.2
no Tls.1.1
no Tls.1.0

http/2 via ALPN supported
SNI required

Tls.1.2
no Tls.1.1
no Tls.1.0

Chain - too much certificates, don't send root certificates	1	CN=www.d2uplus.co.uk
	2	CN=R3, O=Let's Encrypt, C=US
	3	CN=ISRG Root X1, O=Internet Security Research Group, C=US

vercel.com

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

vercel.com

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0

Chain - too much certificates, don't send root certificates	1	CN=*.vercel.com
	2	CN=R3, O=Let's Encrypt, C=US
	3	CN=ISRG Root X1, O=Internet Security Research Group, C=US

76.76.21.21

443

Certificate/chain invalid and wrong name

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

error checking OCSP stapling

76.76.21.21

443

Certificate/chain invalid and wrong name

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

error checking OCSP stapling

no http/2 via ALPN
Cert sent without SNI

Tls.1.2
no Tls.1.1
no Tls.1.0

no http/2 via ALPN
Cert sent without SNI

Tls.1.2
no Tls.1.1
no Tls.1.0

9. Certificates

CN=d2uplus.co.uk

11.01.2022

11.04.2022
1132 days expired

d2uplus.co.uk - 1 entry

CN=d2uplus.co.uk

11.01.2022

11.04.2022
1132 days expired

d2uplus.co.uk - 1 entry

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	03FBDF6DBAA5E7A651E79C8E17F327F054EE
Thumbprint:	372F8A4994B4D49267A8F6CD64F634CC3D772D1E
SHA256 / Certificate:	QaJMJvZNE9zK7eantbky4XrO8n88c2v453b/fvcWcXs=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	fc8c1d9ecf4a681f8783c2e43188d94fc3edd6035edd4c0d03a58a3682035e48
SHA256 hex / Subject Public Key Information (SPKI):	fc8c1d9ecf4a681f8783c2e43188d94fc3edd6035edd4c0d03a58a3682035e48 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:	http://r3.o.lencr.org
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)

CN=R3, O=Let's Encrypt, C=US

04.09.2020

15.09.2025
expires in 121 days

CN=R3, O=Let's Encrypt, C=US

04.09.2020

15.09.2025
expires in 121 days

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	00912B084ACF0C18A753F6D62E25A75F5A
Thumbprint:	A053375BFE84E8B748782C7CEE15827A6AF5A405
SHA256 / Certificate:	Z63RFmsCCuYbj1/JaBPATCqliZYHloZVcqPH5zdhPf0=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):	8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=ISRG Root X1, O=Internet Security Research Group, C=US

04.06.2015

04.06.2035
expires in 3670 days

CN=ISRG Root X1, O=Internet Security Research Group, C=US

04.06.2015

04.06.2035
expires in 3670 days

Keyalgorithm	RSA encryption (4096 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	008210CFB0D240E3594463E0BB63828B00
Thumbprint:	CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:	lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):	96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):	0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):	0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

CN=www.d2uplus.co.uk

28.12.2021

28.03.2022
1146 days expired

www.d2uplus.co.uk - 1 entry

CN=www.d2uplus.co.uk

28.12.2021

28.03.2022
1146 days expired

www.d2uplus.co.uk - 1 entry

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	0418DAB625B6814548EABBB60D3CB654D68D
Thumbprint:	5914D3A517D7BEA8A6BA75ACDCC4EE40099CC1C0
SHA256 / Certificate:	S9FqtXfngZLTl8j5nhdlsY4Y96Vv+fmh/l8uL5utmSg=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	2cd75b162290b37b98fe0d19764635f53b8c3ac2bd29ae391a04624d7af5a957
SHA256 hex / Subject Public Key Information (SPKI):	2cd75b162290b37b98fe0d19764635f53b8c3ac2bd29ae391a04624d7af5a957 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:	http://r3.o.lencr.org
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)

CN=R3, O=Let's Encrypt, C=US

04.09.2020

15.09.2025
expires in 121 days

CN=R3, O=Let's Encrypt, C=US

04.09.2020

15.09.2025
expires in 121 days

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	00912B084ACF0C18A753F6D62E25A75F5A
Thumbprint:	A053375BFE84E8B748782C7CEE15827A6AF5A405
SHA256 / Certificate:	Z63RFmsCCuYbj1/JaBPATCqliZYHloZVcqPH5zdhPf0=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):	8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=ISRG Root X1, O=Internet Security Research Group, C=US

04.06.2015

04.06.2035
expires in 3670 days

CN=ISRG Root X1, O=Internet Security Research Group, C=US

04.06.2015

04.06.2035
expires in 3670 days

Keyalgorithm	RSA encryption (4096 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	008210CFB0D240E3594463E0BB63828B00
Thumbprint:	CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:	lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):	96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):	0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):	0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

CN=zeit.co

09.10.2019

08.10.2021
1317 days expired

CN=zeit.co

09.10.2019

08.10.2021
1317 days expired

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	096319B0D794DA0E632972197555B6FE0C034411
Thumbprint:	D6BD1BD736B29A061456EC670BF92AA954F67E0D
SHA256 / Certificate:	zuusiBKDDYoejzDNPmFuzM5ID7kHR/jDZetP1zM1pAY=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6d4855b27e0fa942fb4d51269c412ee3355d1f3279fd83548745918d425e1d29
SHA256 hex / Subject Public Key Information (SPKI):	6d4855b27e0fa942fb4d51269c412ee3355d1f3279fd83548745918d425e1d29
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

UntrustedRoot: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.
NotTimeValid: A required certificate is not within its validity period when verifying against the current system clock or the timestamp in the signed file.

CN=*.vercel.com

02.02.2022

03.05.2022
1110 days expired

*.vercel.com, vercel.com - 2 entries

CN=*.vercel.com

02.02.2022

03.05.2022
1110 days expired

*.vercel.com, vercel.com - 2 entries

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	03EBBCE04161F3A6640CB48399DF5EC6C197
Thumbprint:	D4D069EA2153B2D895E44784FC8FB50766FCF31E
SHA256 / Certificate:	Duc/UGNz2xo4tD9hyES6MPhagnrWxX8izhQl/u113+A=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	2fae41931632f6207835bd639f03eefc25c3268afc1b79efeb9b6fa86ea53ec9
SHA256 hex / Subject Public Key Information (SPKI):	2fae41931632f6207835bd639f03eefc25c3268afc1b79efeb9b6fa86ea53ec9 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:	http://r3.o.lencr.org
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)

CN=R3, O=Let's Encrypt, C=US

04.09.2020

15.09.2025
expires in 121 days

CN=R3, O=Let's Encrypt, C=US

04.09.2020

15.09.2025
expires in 121 days

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	00912B084ACF0C18A753F6D62E25A75F5A
Thumbprint:	A053375BFE84E8B748782C7CEE15827A6AF5A405
SHA256 / Certificate:	Z63RFmsCCuYbj1/JaBPATCqliZYHloZVcqPH5zdhPf0=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):	8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=ISRG Root X1, O=Internet Security Research Group, C=US

04.06.2015

04.06.2035
expires in 3670 days

CN=ISRG Root X1, O=Internet Security Research Group, C=US

04.06.2015

04.06.2035
expires in 3670 days

Keyalgorithm	RSA encryption (4096 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	008210CFB0D240E3594463E0BB63828B00
Thumbprint:	CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:	lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):	96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):	0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):	0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

Small Code Update - wait one minute

2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

Small Code Update - wait one minute

11. Html-Content - Entries

Summary

							Subresource Integrity (SRI)
Domainname	HtmlElement	rel/property	∑	∑ size	∑ problems	∑ int.	∑ ext.	∑ Origin poss.	∑ SRI ParseErrors	∑ SRI valid	∑ SRI missing
https://www.d2uplus.co.uk/ 76.76.21.21	a		6		0			0	0	0
	img		4	56,106 Bytes	0	4	0	0	0	0
	link	stylesheet	2		0	2	0	0	0	0
	link	other	2		0	2	0	0	0	0
	meta	other	3		0			0	0	0
	script		10	54,672 Bytes	0	9	1	0	0	0
https://vercel.com/	a		82		0			0	0	0
	img		53		0			0	0	0
	link	alternate	1		0			0	0	0
	link	stylesheet	5		0			0	0	0
	link	other	20		0			0	0	0
	meta	apple	1		0			0	0	0
	meta	og	4		0			0	0	0
	meta	twitter	3		0			0	0	0
	meta	other	7		0			0	0	0
	script		36		0			0	0	0
	style		63		0			0	0	0

Details (currently limited to 500 rows - some problems with spam users)

Domainname

Html-Element

name/equiv/ property/rel

href/src/content

HttpStatus

msg

∑

Status

https://www.d2uplus.co.uk/
76.76.21.21

/login

/terms-and-conditions

/vendor-registration

mailto: enquiries@d2uplus.co.uk

tel: 01202 644545

img

src

/images/burger.jpg

200

alt: D2U hero banner image

image/jpeg
missing X-Content-Type-Options nosniff

No Cache-Control header

No Compression - 56106 Bytes

img

src

data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Image:

alt: Deliver to you company logo

img

src

data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjgwIiBoZWlnaHQ9IjEwMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB2ZXJzaW9uPSIxLjEiLz4=
Image:

no alt-Attribute

img

src

/_next/image?url=%2Fimages%2Flogos%2Fd2uLogo-white-strap-right.svg&w=640&q=75

200

alt: Deliver to you company logo

image/svg+xml
missing X-Content-Type-Options nosniff

No Cache-Control header

No Compression - 2112 Bytes

srcset

/_next/image?url=%2Fimages%2Flogos%2Fd2uLogo-white-strap-right.svg&w=384&q=75 1x, /_next/image?url=%2Fimages%2Flogos%2Fd2uLogo-white-strap-right.svg&w=640&q=75 2x

/_next/image?url=%2Fimages%2Flogos%2Fd2uLogo-white-strap-right.svg&w=384&q=75 1x

200

image/svg+xml
missing X-Content-Type-Options nosniff

No Cache-Control header

No Compression - 2112 Bytes

/_next/image?url=%2Fimages%2Flogos%2Fd2uLogo-white-strap-right.svg&w=640&q=75 2x

200

image/svg+xml
missing X-Content-Type-Options nosniff

No Cache-Control header

No Compression - 2112 Bytes

link

preload

/_next/static/css/52d112972eee52b4543c.css

200

text/css; charset=utf-8
missing X-Content-Type-Options nosniff

Compression required: 11143 Bytes

link

preload

/_next/static/css/eb70d032a71f60649791.css

200

text/css; charset=utf-8
missing X-Content-Type-Options nosniff

Compression required: 2645 Bytes

link

stylesheet

/_next/static/css/52d112972eee52b4543c.css

200

text/css; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

Compression required: 11143 Bytes

local SRI possible, possible hash-values:

sha256-oJTgf7BlVagvK/IMiLd4YIhpCFGo9ls6eWFe/HAhfKI=
sha384-WPew9J45UgWFYh6oCnMSMovMmM2z4FIAUyyv2RyMciu+/2YNSo2xZMYff8DcKIPK
sha512-Wo0dYTtsWcgFol3nR0TzV+fB0+LJw+80cOVaDhOaKiejwVKt2Oh/qwdNE/qbYlmZD1cSxTSk1S/ii3pRKltlAA==

Content loaded via url("...")

/fonts/SofiaProBold.otf

/fonts/SofiaProLight.otf

/fonts/SofiaProMedium.otf

/fonts/SofiaProRegular.otf

/fonts/SofiaProSemiBold.otf

data:application/font-woff;charset=utf-8;base64, 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

data:application/x-font-ttf;charset=utf-8;base64,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

link

stylesheet

/_next/static/css/eb70d032a71f60649791.css

200

text/css; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

Compression required: 2645 Bytes

local SRI possible, possible hash-values:

sha256-q3nDpOSA6Xr+mYk4HJ+5PXXQzrG5rDVDRsOC1ou3bm0=
sha384-/FlJtqYYMfoTgZs6EjSH0EI54HMrEvyOZrRST1T7fy2DACsCno0bRxNiKk9gih2b
sha512-H2WggoSKE1OrUN3ydL/KjEtsTgBnNrWVKVGXgqqIDSobSKmGcFY0MuEZVS+rvo77VHR5KmacQtnXWB1N0swHCA==

meta

charset

utf-8

meta

next-head-count

meta

viewport

width=device-width

script

src

/_next/static/B4Ddr9D4FB8ydykvDkhzV/_buildManifest.js

200

defer attribute found

application/javascript; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

Compression required: 1314 Bytes

local SRI possible, possible hash-values:

sha256-5RJ8db2O4n6tjooqNQCHiLziYrs1NOVPw8MNf1aZFU0=
sha384-mKuE1KV9rn0NcLL5nVfuN6GDmBY4s9Z2wc5jw44Ung1GB9aV89rNDJldHdzg0ENs
sha512-PZyCo/OaoXVn0cznPA5+NSt75rjpvBjBK0fFCSy2aQc2HFXDklD6njdxFeziEDZZZ5UpnvpaB7qEAaU/WgJa1w==

script

src

/_next/static/B4Ddr9D4FB8ydykvDkhzV/_ssgManifest.js

200

defer attribute found

application/javascript; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

77 Bytes

local SRI possible, possible hash-values:

sha256-b1tKoA0vjWrtmTW0cYBr96zvRk0MHTkCYOX+J/gAxn4=
sha384-3aXL6K9hEH0v7VEPSdSPEfP6gaGeEGnUA/ujvO7qqr9y/dysVarqY7VCk8KSf3Tg
sha512-M5DFZj75CBiF34zbxxn2wvFZek4lFoUpWYCX6UcmCKSmLsf34LxADSKqyBv26pJlMohuTcbk4nLTtYhJCgkEcw==

script

src

/_next/static/chunks/796-d4878a4d7801789b836d.js

200

defer attribute found

application/javascript; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

Compression required: 39230 Bytes

local SRI possible, possible hash-values:

sha256-kCPwmiOq5PZEBbB8+Gejz5zWuWTdMcL/V9qQBdPRg6Q=
sha384-POuifq2y54gsTc7w/5be3S4ZsH6UhcnfSTtSEhaduB/CWqydy/e4FQFXAeMLdwL5
sha512-ZsGjEi032dcscdVnqc0JqPvBt5E8QX4XIGbnD0znVeYlgN2oFIsdoLm/HSmDk1iTbcuP4FW1Ce5o77Cs57H6ug==

script

src

/_next/static/chunks/framework-5f2fe9b59651dc7aed19.js

200

defer attribute found

application/javascript; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

Compression required: 42757 Bytes

local SRI possible, possible hash-values:

sha256-hnjm47e8iiaoRJL7cjlidr0Yo+nvrIFMhM/mPOJUjYI=
sha384-iMbbmkmonH/A6P9Gct7hf6K1Zcu5bJAEy9HZoTEKzgSK/U8uBHeBRdsd68K/A1HL
sha512-50mcFbVroKxDfTzFgCAg3uGjyC9lk/m8CRkGuqiBAMtlTpaJIR1eKVhDKlbTU44cVv8t9j8YRAba/X3hMux82g==

script

src

/_next/static/chunks/main-6d848910cff452bf7614.js

200

defer attribute found

application/javascript; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

Compression required: 23923 Bytes

local SRI possible, possible hash-values:

sha256-HEe+xqhWRUz6PMELNZzH82oiZKqm7sx9lkVDY1lOrCU=
sha384-jIkRf6PzphEucFmtYFNCQ6r6KBdPrG7HLYg/Fud14YP1V//ncp9GDZrxXhvoPIsG
sha512-3mTfQrncthv8TS6HHsYhNwytFSTJkXFvV48xIRBqUvrRkQzuO59TvpJiAEkGZsPUkQf3cIlNCqjY5i9MzKRsqA==

script

src

/_next/static/chunks/pages/_app-d890f463b44e361cbc8b.js

200

defer attribute found

application/javascript; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

Compression required: 39986 Bytes

local SRI possible, possible hash-values:

sha256-vjA+DpUwvERDwcbxMBYhZ44A0+6xyDqOTWDXKrbazqA=
sha384-yR4k/LmUClANyfUM1+iWL/sSy94tsV3ZVlHImRSPInlUhQN/Llyss3lV6qPWpRnw
sha512-pjjSB+Unann3taXgpppBf2XzwFMlIru7uOuy1nQfPzSkBsq2y/4yzqA0ZaXK5NYPrxAeD7dc+fMdsuuI39lo+w==

script

src

/_next/static/chunks/pages/index-68714287fcf77401f1fe.js

200

defer attribute found

application/javascript; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

Compression required: 12492 Bytes

local SRI possible, possible hash-values:

sha256-UJ26tEu11lwgN80Cruk2NwjeiwtXYU8t0yrKU6CB148=
sha384-D99mdKKtf4NXnOkys1r1AOVod47eswSCqQ702qF1ihIz7GcjoVVvRW4yEd91wjnX
sha512-5+/OIBOb/BrcurX+HsPRIrHUmnSUL9bUo8+hK5ROTHP++xgARgl6HNz2VglSlJT4BTpSg8LjIKBShdPXwUlfmg==

script

src

/_next/static/chunks/polyfills-a40ef1678bae11e696dba45124eadd70.js

200

defer attribute found

application/javascript; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

Compression required: 31384 Bytes

local SRI possible, possible hash-values:

sha256-fLWoemwNBaqyJFy/aiatrYDNMiVA1fY2Dd5iG/kidD8=
sha384-vRQ07FCS0wN2TizUf2ROWgVsYaz+caKzGyIjLUxkJ+Cdk/ZdaUuHyn99ZlA6FXod
sha512-hmKKZGCWAa0vKtyHqrv42WKSw4M1eYyMPU9Tj2/xYT5hgPChH9B97OK29WCPuIX/7AR9eT+9JY/cnZBJEFFwSA==

script

src

/_next/static/chunks/webpack-86242b73399d87fb115a.js

200

defer attribute found

application/javascript; charset=utf-8
missing X-Content-Type-Options nosniff

No Cache-Control - header

Compression required: 890 Bytes

local SRI possible, possible hash-values:

sha256-o8ZLW9HK76kXSU4rlomJuY2cKZO7svk9iSX7SZyK5Gs=
sha384-37yY7WT9+LbEhyLTEU+FaEyV6wAeIk3eUhnhMU74IEwIc9Duou3aU/c3gmZUvbsf
sha512-0D9doZZA0wv3+HfLcxvP5jKgAfDMBZMCz93AmMDNY6KfqnRSUQkBB8JSwq1GV8u+U/Y/JGkv/K8idOOrR0kacg==

script

src

https://maps.googleapis.com/maps/api/js?key=AIzaSyAGJmD4fq6p2ylGEuySRiJqRSpTVv8u9UQ&libraries=places

200

Missing defer / async attribute.

text/javascript; charset=UTF-8
missing X-Content-Type-Options nosniff

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/about

/blog

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/new/clone?repository-url=https%3A%2F%2Fgithub.com%2Fvercel%2Fcommerce&project-name=commerce&repository-name=commerce&demo-title=Next.js%20Commerce&demo-description=An%20all-in-one%20starter%20kit%20for%20high-performance%20e-commerce%20sites.&demo-url=https%3A%2F%2Fdemo.vercel.store&demo-image=https%3A%2F%2Fbigcommerce-demo-asset-ksvtgfvnd.vercel.app%2Fbigcommerce.png&integration-ids=oac_MuWZiE4jtmQ2ejZQaQ7ncuDT%2Coac_9HSKtXld74NG0srzdxSiBGty&skippable-integrations=1

/new/clone?s=https%3A%2F%2Fgithub.com%2Fvercel%2Fvercel%2Ftree%2Fmain%2Fexamples%2Fember&template=ember&id=67753070&b=main

/new/clone?s=https%3A%2F%2Fgithub.com%2Fvercel%2Fvercel%2Ftree%2Fmain%2Fexamples%2Fhugo&template=hugo&id=67753070&b=main

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/new/clone?s=https%3A%2F%2Fgithub.com%2Fvercel%2Fvercel%2Ftree%2Fmain%2Fexamples%2Fsvelte&template=svelte&id=67753070&b=main

/new/clone?s=https%3A%2F%2Fgithub.com%2Fvercel%2Fvercel%2Ftree%2Fmain%2Fexamples%2Fsveltekit&template=sveltekit&id=67753070&b=main

/new/git/third-party

/new/templates

/oss

/partners

/pricing

/security

/signup

/solutions/angular

/solutions/gatsby

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/solutions/react

/solutions/vue

/support

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/workflow

https://github.com/vercel

https://nextjs.org/conf

https://nextjs.org/docs/basic-features/data-fetching

https://nextjs.org/showcase#e-commerce

https://nextjs.org/showcase#marketing

https://nextjs.org/showcase#news

https://nextjs.org/showcase#travel

https://twitter.com/vercel

https://vercel.com/blog/automatic-ssl-with-vercel-lets-encrypt

https://vercel.com/docs/edge-network/caching

https://vercel.com/docs/edge-network/compression

https://vercel.com/docs/serverless-functions/introduction

https://www.patreon.com/

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src

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Image:

alt: Auth0 Logo

img

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alt: Facebook Logo

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alt: HashiCorp Logo

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src

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Image:

alt: John (Design Team)

img

src

data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Image:

alt: Leo (Marketing Team)

img

src

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Image:

alt: McDonald’s Logo

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src

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Image:

alt: Next.js Commerce

img

src

data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Image:

alt: Sarah (Engineering Team)

img

src

data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Image:

alt: Tripadvisor Logo

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src

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alt: Washington Post Logo

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src

https://res.cloudinary.com/zeit-inc/image/fetch/https://raw.githubusercontent.com/vercel/vercel/main/packages/frameworks/logos/next.svg

alt: Next.js

img

src

https://res.cloudinary.com/zeit-inc/image/fetch/https://raw.githubusercontent.com/vercel/vercel/main/packages/frameworks/logos/nuxt.svg

alt: Nuxt.js

img

src

https://res.cloudinary.com/zeit-inc/image/fetch/https://raw.githubusercontent.com/vercel/vercel/main/packages/frameworks/logos/svelte.svg

alt: SvelteKit

img

src

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_7680/front/home/new/nextjs-commerce.png

alt: Next.js Commerce

srcset

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https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_1280/front/home/new/nextjs-commerce.png 640w

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_1500/front/home/new/nextjs-commerce.png 750w

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_1656/front/home/new/nextjs-commerce.png 828w

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_2160/front/home/new/nextjs-commerce.png 1080w

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_2400/front/home/new/nextjs-commerce.png 1200w

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_3840/front/home/new/nextjs-commerce.png 1920w

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_4096/front/home/new/nextjs-commerce.png 2048w

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_7680/front/home/new/nextjs-commerce.png 3840w

img

src

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_192/front/home/new/john-3.png

alt: John (Design Team)

srcset

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_96/front/home/new/john-3.png 1x, https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_192/front/home/new/john-3.png 2x

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_96/front/home/new/john-3.png 1x

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_192/front/home/new/john-3.png 2x

img

src

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_192/front/home/new/leo.png

alt: Leo (Marketing Team)

srcset

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_96/front/home/new/leo.png 1x, https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_192/front/home/new/leo.png 2x

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_96/front/home/new/leo.png 1x

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_192/front/home/new/leo.png 2x

img

src

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_192/front/home/new/sarah-2.png

alt: Sarah (Engineering Team)

srcset

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_96/front/home/new/sarah-2.png 1x, https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_192/front/home/new/sarah-2.png 2x

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_96/front/home/new/sarah-2.png 1x

https://assets.vercel.com/image/upload/f_auto,c_limit,q_auto,w_192/front/home/new/sarah-2.png 2x

img

src

https://assets.vercel.com/image/upload/front/home/new/logos/auth0.svg

alt: Auth0 Logo

srcset

https://assets.vercel.com/image/upload/front/home/new/logos/auth0.svg 1x, https://assets.vercel.com/image/upload/front/home/new/logos/auth0.svg 2x

https://assets.vercel.com/image/upload/front/home/new/logos/auth0.svg 1x

https://assets.vercel.com/image/upload/front/home/new/logos/auth0.svg 2x

img

src

https://assets.vercel.com/image/upload/front/home/new/logos/facebook.svg

alt: Facebook Logo

srcset

https://assets.vercel.com/image/upload/front/home/new/logos/facebook.svg 1x, https://assets.vercel.com/image/upload/front/home/new/logos/facebook.svg 2x

https://assets.vercel.com/image/upload/front/home/new/logos/facebook.svg 1x

https://assets.vercel.com/image/upload/front/home/new/logos/facebook.svg 2x

img

src

https://assets.vercel.com/image/upload/front/home/new/logos/hashicorp.svg

alt: HashiCorp Logo

srcset

https://assets.vercel.com/image/upload/front/home/new/logos/hashicorp.svg 1x, https://assets.vercel.com/image/upload/front/home/new/logos/hashicorp.svg 2x

https://assets.vercel.com/image/upload/front/home/new/logos/hashicorp.svg 1x

https://assets.vercel.com/image/upload/front/home/new/logos/hashicorp.svg 2x

img

src

https://assets.vercel.com/image/upload/front/home/new/logos/mcdonalds.svg

alt: McDonald’s Logo

srcset

https://assets.vercel.com/image/upload/front/home/new/logos/mcdonalds.svg 1x, https://assets.vercel.com/image/upload/front/home/new/logos/mcdonalds.svg 2x

https://assets.vercel.com/image/upload/front/home/new/logos/mcdonalds.svg 1x

https://assets.vercel.com/image/upload/front/home/new/logos/mcdonalds.svg 2x

img

src

https://assets.vercel.com/image/upload/front/home/new/logos/tripadvisor-horizontal.svg

alt: Tripadvisor Logo

srcset

https://assets.vercel.com/image/upload/front/home/new/logos/tripadvisor-horizontal.svg 1x, https://assets.vercel.com/image/upload/front/home/new/logos/tripadvisor-horizontal.svg 2x

https://assets.vercel.com/image/upload/front/home/new/logos/tripadvisor-horizontal.svg 1x

https://assets.vercel.com/image/upload/front/home/new/logos/tripadvisor-horizontal.svg 2x

img

src

https://assets.vercel.com/image/upload/front/home/new/logos/uber.svg

alt: Uber Logo

srcset

https://assets.vercel.com/image/upload/front/home/new/logos/uber.svg 1x, https://assets.vercel.com/image/upload/front/home/new/logos/uber.svg 2x

https://assets.vercel.com/image/upload/front/home/new/logos/uber.svg 1x

https://assets.vercel.com/image/upload/front/home/new/logos/uber.svg 2x

img

src

https://assets.vercel.com/image/upload/front/home/new/logos/washingtonpost.svg

alt: Washington Post Logo

srcset

https://assets.vercel.com/image/upload/front/home/new/logos/washingtonpost.svg 1x, https://assets.vercel.com/image/upload/front/home/new/logos/washingtonpost.svg 2x

https://assets.vercel.com/image/upload/front/home/new/logos/washingtonpost.svg 1x

https://assets.vercel.com/image/upload/front/home/new/logos/washingtonpost.svg 2x

link

alternate

/atom

link

apple-touch-icon

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/114x114.png

link

apple-touch-icon

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/120x120.png

link

apple-touch-icon

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/144x144.png

link

apple-touch-icon

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/152x152.png

link

apple-touch-icon

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/180x180.png

link

apple-touch-icon

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/57x57.png

link

apple-touch-icon

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/60x60.png

link

apple-touch-icon

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/72x72.png

link

apple-touch-icon

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/76x76.png

link

canonical

https://vercel.com/

link

icon shortcut

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/favicon.ico

link

manifest

/site.webmanifest

link

mask-icon

https://assets.vercel.com/image/upload/q_auto/front/favicon/vercel/safari-pinned-tab.svg

link

preconnect

https://assets.vercel.com

link

preconnect

https://avatars.githubusercontent.com

link

preload

/_next/static/css/1284a37c99cfa333.css

link

preload

/_next/static/css/9091addd2af55b49.css

link

preload

/_next/static/css/911121699965b12e.css

link

preload

/_next/static/css/97991d633d4cba2f.css

link

preload

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link

stylesheet

/_next/static/css/1284a37c99cfa333.css

link

stylesheet

/_next/static/css/9091addd2af55b49.css

link

stylesheet

/_next/static/css/911121699965b12e.css

link

stylesheet

/_next/static/css/97991d633d4cba2f.css

link

stylesheet

/_next/static/css/b5d754cef9d2c0a6.css

meta

charset

utf-8

meta

og:description

Deploy web projects with the best frontend developer experience and highest end-user performance.

meta

og:image

https://assets.vercel.com/image/upload/q_auto/front/vercel/dps.png

meta

og:title

Develop. Preview. Ship. For the best frontend teams – Vercel

meta

og:url

https://vercel.com/

meta

Content-Language

meta

apple-mobile-web-app-title

Vercel

meta

description

Deploy web projects with the best frontend developer experience and highest end-user performance.

meta

msapplication-TileColor

#000000

meta

next-head-count

meta

theme-color

var(--geist-background)

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summary_large_image

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twitter:image

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meta

twitter:site

@vercel

meta

viewport

width=device-width, initial-scale=1.0

script

src

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defer attribute found

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src

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script

src

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script

src

/_next/static/chunks/pages/index-894a8125633ce6a1.js

defer attribute found

script

src

/_next/static/chunks/polyfills-5cd94c89d3acac5f.js

defer attribute found

script

src

/_next/static/chunks/webpack-2e48063420d60144.js

defer attribute found

script

src

/_next/static/LnvyFHLOsD5B0Xe5hEcVo/_buildManifest.js

defer attribute found

script

src

/_next/static/LnvyFHLOsD5B0Xe5hEcVo/_middlewareManifest.js

defer attribute found

script

src

/_next/static/LnvyFHLOsD5B0Xe5hEcVo/_ssgManifest.js

defer attribute found

style

https://assets.vercel.com/raw/upload/v1587415301/fonts/2/inter-var-latin.woff2

style

https://assets.vercel.com/raw/upload/v1587418127/fonts/2/inter-var-cyrillic-ext.woff2

style

https://assets.vercel.com/raw/upload/v1587418275/fonts/2/inter-var-greek-ext.woff2

style

https://assets.vercel.com/raw/upload/v1587418275/fonts/2/inter-var-latin-ext.woff2

style

https://assets.vercel.com/raw/upload/v1587418275/fonts/2/inter-var-vietnamese.woff2

style

https://assets.vercel.com/raw/upload/v1587418276/fonts/2/inter-var-cyrillic.woff2

style

https://assets.vercel.com/raw/upload/v1587418276/fonts/2/inter-var-greek.woff2

12. Html-Parsing via https://validator.w3.org/nu/

Small Code update, wait one minute

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com

QNr.	Domain	Type	NS used
1	com	NS	a.root-servers.net (2001:503:ba3e::2:30)
	Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
2	ns1.stackdns.com: 35.197.225.59	NS	a.gtld-servers.net (2001:503:a83e::2:30)
	Answer: ns2.stackdns.com 146.148.28.88
	Answer: ns3.stackdns.com 35.198.79.191
	Answer: ns4.stackdns.com 104.196.137.209

14. CAA - Entries

Domainname	Value	∑ Queries
www.d2uplus.co.uk	no CAA entry found	1
d2uplus.co.uk	no CAA entry found	1
co.uk	no CAA entry found	1
uk	no CAA entry found	1

15. TXT - Entries

Domainname	TXT Entry	Status	∑ Queries
d2uplus.co.uk	v=spf1 include:spf.stackmail.com a mx -all	ok	1
www.d2uplus.co.uk		ok	1
_acme-challenge.d2uplus.co.uk		Name Error - The domain name does not exist	1
_acme-challenge.www.d2uplus.co.uk		Name Error - The domain name does not exist	1
_acme-challenge.d2uplus.co.uk.d2uplus.co.uk		Name Error - The domain name does not exist	1
_acme-challenge.www.d2uplus.co.uk.d2uplus.co.uk		Name Error - The domain name does not exist	1
_acme-challenge.www.d2uplus.co.uk.www.d2uplus.co.uk		Name Error - The domain name does not exist	1

16. DomainService - Entries

No DomainServiceEntries entries found

17. Cipher Suites

No Ciphers found

18. Portchecks

No open Ports <> 80 / 443 found, so no additional Ports checked.

Permalink: https://check-your-website.server-daten.de/?i=c47478fd-134a-4ab6-bb67-481b1b85cc86

Last Result: https://check-your-website.server-daten.de/?q=d2uplus.co.uk - 2022-03-10 20:58:02

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Check DNS, Urls + Redirects, Certificates and Content of your Website

Older results

1. IP-Addresses

2. DNSSEC

3. Name Servers

4. SOA-Entries

5. Screenshots

Mobile- and other Chrome-Checks

6. Url-Checks

7. Comments

1. General Results, most used to calculate the result

2. Header-Checks

3. DNS- and NameServer - Checks

4. Content- and Performance-critical Checks

8. Connections

9. Certificates

10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

11. Html-Content - Entries

Summary

Details (currently limited to 500 rows - some problems with spam users)

12. Html-Parsing via https://validator.w3.org/nu/

13. Nameserver - IP-Adresses

14. CAA - Entries

15. TXT - Entries

16. DomainService - Entries

17. Cipher Suites

18. Portchecks