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


 

 

N

 

No trusted Certificate

 

Checked:
17.02.2021 08:45:34

 

Older results

 

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
flow-robotics.com
A
52.47.137.87
Paris/Île-de-France/France (FR) - Amazon Technologies Inc.
Hostname: ec2-52-47-137-87.eu-west-3.compute.amazonaws.com
yes
1
0

AAAA

yes


www.flow-robotics.com
A
52.47.137.87
Paris/Île-de-France/France (FR) - Amazon Technologies Inc.
Hostname: ec2-52-47-137-87.eu-west-3.compute.amazonaws.com
yes
1
0

AAAA

yes


*.flow-robotics.com
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 20326, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 42351, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 03.03.2021, 00:00:00 +, Signature-Inception: 10.02.2021, 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: com

com
1 DS RR in the parent zone found






DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest 4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=






1 RRSIG RR to validate DS RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 02.03.2021, 05:00:00 +, Signature-Inception: 17.02.2021, 04:00:00 +, KeyTag 42351, Signer-Name: (root)






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 42351 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 30909, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 58540, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 24.02.2021, 19:24:21 +, Signature-Inception: 09.02.2021, 19:19:21 +, KeyTag 30909, Signer-Name: com






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 30909 used to validate the DNSKEY RRSet






Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest "4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: flow-robotics.com

flow-robotics.com
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 "73kgbqedgplkk5alco5i8voir3blr5fa" between the hashed NSEC3-owner "73kfred6qrl9ck8jtmi55kg25m3ek09i" and the hashed NextOwner "73kgjputgpk7oo99p0ks4jhjgt19r6r0". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner 73kfred6qrl9ck8jtmi55kg25m3ek09i.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 22.02.2021, 06:00:11 +, Signature-Inception: 15.02.2021, 04:50:11 +, KeyTag 58540, Signer-Name: com






DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ck0pojmg874ljref7efn8430qvit8bsm" as Owner. That's the Hash of "com" with the NextHashedOwnerName "ck0q1gin43n1arrc9osm6qpqr81h5m9a". So that domain name is the Closest Encloser of "flow-robotics.com". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 21.02.2021, 05:40:57 +, Signature-Inception: 14.02.2021, 04:30:57 +, KeyTag 58540, Signer-Name: com






0 DNSKEY RR found









Zone: www.flow-robotics.com

www.flow-robotics.com
0 DS RR in the parent zone found

 

3. Name Servers

DomainNameserverNS-IP
www.flow-robotics.com
  ns1.simply.com / ns1.unoeuro.com

flow-robotics.com
  ns1.simply.com / ns1.unoeuro.com
46.36.215.2
Brøndby/Capital Region/Denmark (DK) - team.blue Denmark A/S


  ns2.simply.com / ns2.unoeuro.com
185.25.141.15
Skanderborg/Central Jutland/Denmark (DK) - team.blue Denmark A/S


  ns3.simply.com / ns3.unoeuro.com
83.217.78.186
Antwerp/Flanders/Belgium (BE) - Sentia Network


 
2a00:1c98:10:26::10
Ghent/Flanders/Belgium (BE) - COMBELL Network


  ns4.simply.com / ns4.unoeuro.com
85.159.211.233
London/England/United Kingdom (GB) - Linode, LLC


 
2a01:7e00::f03c:91ff:fe50:2326
London/England/United Kingdom (GB) - Linode, LLC

com
  a.gtld-servers.net / nnn1-fra8


  b.gtld-servers.net / nnn1-eltxl2


  c.gtld-servers.net / nnn1-fra8


  d.gtld-servers.net / nnn1-fra8


  e.gtld-servers.net / nnn1-fra8


  f.gtld-servers.net / nnn1-fra5


  g.gtld-servers.net / nnn1-fra5


  h.gtld-servers.net / nnn1-fra5


  i.gtld-servers.net / nnn1-fra5


  j.gtld-servers.net / nnn1-ein2


  k.gtld-servers.net / nnn1-ein2


  l.gtld-servers.net / nnn1-ein1


  m.gtld-servers.net / nnn1-ein4

 

4. SOA-Entries


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1613547914
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:11


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1613547929
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:2


Domain:flow-robotics.com
Zone-Name:flow-robotics.com
Primary:ns1.simply.com
Mail:hostmaster.simply.com
Serial:2020072990
Refresh:14400
Retry:3600
Expire:1209600
TTL:3600
num Entries:6


Domain:www.flow-robotics.com
Zone-Name:flow-robotics.com
Primary:ns1.simply.com
Mail:hostmaster.simply.com
Serial:2020072990
Refresh:14400
Retry:3600
Expire:1209600
TTL:3600
num Entries:1


5. Screenshots

Startaddress: https://flow-robotics.com, address used: https://flow-robotics.com/, Screenshot created 2021-02-17 08:47:11 +00:0

 

Mobil (412px x 732px)

 

1425 milliseconds

 

Screenshot mobile - https://flow-robotics.com/
Mobil + Landscape (732px x 412px)

 

1528 milliseconds

 

Screenshot mobile landscape - https://flow-robotics.com/
Screen (1280px x 1680px)

 

2635 milliseconds

 

Screenshot Desktop - https://flow-robotics.com/

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport396732
content Size39610830

 

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 1.2, ECDHE_RSA with P-256, and AES_128_GCM.

 

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

 

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://flow-robotics.com/
52.47.137.87
301
https://flow-robotics.com/
Html is minified: 100.00 %
0.053
A
Date: Wed, 17 Feb 2021 07:46:10 GMT
Server: Apache/2.4.18 (Ubuntu)
Location: https://flow-robotics.com/
Content-Length: 317
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://www.flow-robotics.com/
52.47.137.87
301
https://flow-robotics.com/

0.174
E
Date: Wed, 17 Feb 2021 07:46:10 GMT
Server: Apache/2.4.18 (Ubuntu)
X-Redirect-By: WordPress
Location: https://flow-robotics.com/
Cache-Control: max-age=0
Expires: Wed, 17 Feb 2021 07:46:10 GMT
Content-Length: 0
Connection: close
Content-Type: text/html; charset=UTF-8

• https://www.flow-robotics.com/
52.47.137.87
301
https://flow-robotics.com/

3.483
N
Certificate error: RemoteCertificateNameMismatch
Date: Wed, 17 Feb 2021 07:46:15 GMT
Server: Apache/2.4.18 (Ubuntu)
X-Redirect-By: WordPress
Location: https://flow-robotics.com/
Cache-Control: max-age=0
Expires: Wed, 17 Feb 2021 07:46:15 GMT
Content-Length: 0
Connection: close
Content-Type: text/html; charset=UTF-8

• https://flow-robotics.com/
52.47.137.87
Inline-JavaScript (∑/total): 26/11213 Inline-CSS (∑/total): 2/542
200

Html is minified: 136.12 %
Other inline scripts (∑/total): 20/12169
3.677
B
Date: Wed, 17 Feb 2021 07:46:11 GMT
Server: Apache/2.4.18 (Ubuntu)
Cache-Control: max-age=3600, must-revalidate, max-age=0
Hummingbird-Cache: Served
Vary: Accept-Encoding
Content-Encoding: gzip
Expires: Wed, 17 Feb 2021 07:46:11 GMT
Content-Length: 17705
Connection: close
Content-Type: text/html; charset=UTF-8

• http://flow-robotics.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
52.47.137.87
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://flow-robotics.com/index.php
Html is minified: 100.00 %
Other inline scripts (∑/total): 0/0
0.050
A
Visible Content: Moved Permanently The document has moved here . Apache/2.4.18 (Ubuntu) Server at flow-robotics.com Port 80
Date: Wed, 17 Feb 2021 07:46:19 GMT
Server: Apache/2.4.18 (Ubuntu)
Location: https://flow-robotics.com/index.php
Content-Length: 326
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://www.flow-robotics.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
52.47.137.87
301
http://flow-robotics.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

0.170
D
Visible Content:
Date: Wed, 17 Feb 2021 07:46:19 GMT
Server: Apache/2.4.18 (Ubuntu)
Expires: Wed, 11 Jan 1984 05:00:00 GMT
Cache-Control: no-cache, must-revalidate, max-age=0
X-Redirect-By: WordPress
Location: http://flow-robotics.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 0
Connection: close
Content-Type: text/html; charset=UTF-8

• https://flow-robotics.com/index.php

301
https://flow-robotics.com/

3.550
A
Visible Content:
Date: Wed, 17 Feb 2021 07:46:24 GMT
Server: Apache/2.4.18 (Ubuntu)
X-Redirect-By: WordPress
Location: https://flow-robotics.com/
Cache-Control: max-age=0
Expires: Wed, 17 Feb 2021 07:46:24 GMT
Content-Length: 0
Connection: close
Content-Type: text/html; charset=UTF-8

• https://52.47.137.87/
52.47.137.87
301
https://flow-robotics.com/

3.497
N
Certificate error: RemoteCertificateNameMismatch
Date: Wed, 17 Feb 2021 07:46:20 GMT
Server: Apache/2.4.18 (Ubuntu)
X-Redirect-By: WordPress
Location: https://flow-robotics.com/
Cache-Control: max-age=0
Expires: Wed, 17 Feb 2021 07:46:20 GMT
Content-Length: 0
Connection: close
Content-Type: text/html; charset=UTF-8

 

7. Comments


1. General Results, most used to calculate the result

Aname "flow-robotics.com" is domain, public suffix is ".com", top-level-domain is ".com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services", num .com-domains preloaded: 55723 (complete: 142558)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: flow-robotics.com has only one ip address.
Warning: Only one ip address found: www.flow-robotics.com 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: flow-robotics.com 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.flow-robotics.com has no ipv6 address.
AGood: No asked Authoritative Name Server had a timeout
Ahttps://flow-robotics.com/index.php
301
https://flow-robotics.com/
Correct redirect https to https
Ahttps://52.47.137.87/ 52.47.137.87
301
https://flow-robotics.com/
Correct redirect https to https
AGood: destination is https
AGood - only one version with Http-Status 200
AGood: one preferred version: non-www is preferred
AGood: No cookie sent via http.
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
AGood: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
Ahttp://flow-robotics.com/ 52.47.137.87
301
https://flow-robotics.com/
Correct redirect http - https with the same domain name
Bhttps://flow-robotics.com/ 52.47.137.87
200

Missing HSTS-Header
Bhttps://www.flow-robotics.com/ 52.47.137.87
301

Missing HSTS-Header
Bhttps://flow-robotics.com/index.php
301

Missing HSTS-Header
Dhttp://www.flow-robotics.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 52.47.137.87
301
http://flow-robotics.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Wrong redirect one domain http to other domain http. First redirect to https without changing the domain, so no new dns query is required. So the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
Ehttp://www.flow-robotics.com/ 52.47.137.87
301
https://flow-robotics.com/
Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
Nhttps://www.flow-robotics.com/ 52.47.137.87
301
https://flow-robotics.com/
Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://52.47.137.87/ 52.47.137.87
301
https://flow-robotics.com/
Error - Certificate isn't trusted, RemoteCertificateNameMismatch
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 the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain flow-robotics.com, 1 ip addresses, 1 different http results.
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 the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain www.flow-robotics.com, 1 ip addresses, 1 different http results.

2. Header-Checks


3. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
AInfo:: 2 Queries complete, 2 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
AGood: 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.simply.com (46.36.215.2), ns2.simply.com (185.25.141.15), ns3.simply.com (2a00:1c98:10:26::10, 83.217.78.186), ns4.simply.com (2a01:7e00::f03c:91ff:fe50:2326, 85.159.211.233)
AGood (1 - 3.0):: An average of 0.5 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 4 different Name Servers found: ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com, 4 Name Servers included in Delegation: ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com, 4 Name Servers included in 1 Zone definitions: ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com, 1 Name Servers listed in SOA.Primary: ns1.simply.com.
AGood: Only one SOA.Primary Name Server found.: ns1.simply.com.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.simply.com.
AGood: 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.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com
AGood: All Name Server Domain Names have a Public Suffix.
AGood: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
AGood: All Name Server ip addresses are public.
AGood: Minimal 2 different name servers (public suffix and public ip address) found: 4 different Name Servers found
AGood: Some Name Servers have IPv6 addresses: 2 Name Servers with IPv6 found (2 Name Servers without IPv6)
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: simply.com
AGood: Name servers with different Country locations found: 4 Name Servers, 3 Countries: BE, DK, GB
AInfo: Ipv4-Subnet-list: 4 Name Servers, 4 different subnets (first Byte): 185., 46., 83., 85., 4 different subnets (first two Bytes): 185.25., 46.36., 83.217., 85.159., 4 different subnets (first three Bytes): 185.25.141., 46.36.215., 83.217.78., 85.159.211.
AExcellent: Every Name Server IPv4-address starts with an unique Byte.
AInfo: IPv6-Subnet-list: 2 Name Servers with IPv6, 2 different subnets (first block): 2a00:, 2a01:, 2 different subnets (first two blocks): 2a00:1c98:, 2a01:7e00:, 2 different subnets (first three blocks): 2a00:1c98:0010:, 2a01:7e00:0000:, 2 different subnets (first four blocks): 2a00:1c98:0010:0026:, 2a01:7e00:0000:0000:
AExcellent: Every Name Server IPv6-address starts with an unique Hex-block
AGood: Nameserver supports TCP connections: 6 good Nameserver
AGood: Nameserver supports Echo Capitalization: 6 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 6 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 6 good Nameserver
AGood: 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

AGood: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
https://flow-robotics.com/ 52.47.137.87
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://flow-robotics.com/ 52.47.137.87
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://flow-robotics.com/ 52.47.137.87
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
AGood: 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://flow-robotics.com/ 52.47.137.87
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.: 7 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 - 15 with GZip, 16 complete
AGood: All images with internal compression not compressed. Some Images (.png, .jpg, .jpeg, .webp, .gif) are already compressed, so an additional compression isn't helpful. 9 images (type image/png, image/jpg) found without additional GZip. Not required because these images are already compressed
Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 1 external CSS / JavaScript files without Cache-Control-Header, 1 with Cache-Control, but no max-age, 4 with Cache-Control max-age too short (minimum 7 days), 10 with Cache-Control long enough, 16 complete.
Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 15 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 1 with Cache-Control max-age too short (minimum 7 days), 13 with Cache-Control long enough, 29 complete.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AGood: Some img-elements have a valid alt-attribute.: 29 img-elements found, 11 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.: 18 img-elements without alt-attribute, 0 img-elements with empty alt-attribute found.
AGood: 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
ADuration: 104837 milliseconds, 104.837 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
flow-robotics.com
52.47.137.87
443
ok
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok
flow-robotics.com
52.47.137.87
443
ok
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete

1CN=flow-robotics.com


2CN=R3, O=Let's Encrypt, C=US


www.flow-robotics.com
52.47.137.87
443
name does not match
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok

www.flow-robotics.com
52.47.137.87
443
name does not match
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete

1CN=flow-robotics.com


2CN=R3, O=Let's Encrypt, C=US


flow-robotics.com
flow-robotics.com
443
ok
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok

flow-robotics.com
flow-robotics.com
443
ok
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete

1CN=flow-robotics.com


2CN=R3, O=Let's Encrypt, C=US


52.47.137.87
52.47.137.87
443
name does not match
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok

52.47.137.87
52.47.137.87
443
name does not match
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete

1CN=flow-robotics.com


2CN=R3, O=Let's Encrypt, C=US

 

9. Certificates

1.
1.
CN=flow-robotics.com
10.01.2021
10.04.2021
1552 days expired
flow-robotics.com - 1 entry
1.
1.
CN=flow-robotics.com
10.01.2021

10.04.2021
1552 days expired


flow-robotics.com - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:0428AE788D1E76831A7918D400020ADFEB46
Thumbprint:07D7F7B8471F848FB3EC5B0BEEDB2FDDE87DE86F
SHA256 / Certificate:7v+DNZ4BDuCi9OVAtgkiHjGICoOpr9GvnmNyw3wwlNc=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):07c5050b6e2e79729ee8e38218a4c23b4aa9024855153e2482e4bc9c0ea54664
SHA256 hex / Subject Public Key Information (SPKI):07c5050b6e2e79729ee8e38218a4c23b4aa9024855153e2482e4bc9c0ea54664
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
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)




2.
CN=R3, O=Let's Encrypt, C=US
07.10.2020
29.09.2021
1380 days expired


2.
CN=R3, O=Let's Encrypt, C=US
07.10.2020

29.09.2021
1380 days expired




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:400175048314A4C8218C84A90C16CDDF
Thumbprint:48504E974C0DAC5B5CD476C8202274B24C8C7172
SHA256 / Certificate:cwwb3NhfV85dwLunM+XxulqSWyp3HWQKJvekVCJNrTs=
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:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)




3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000
30.09.2021
1379 days expired


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000

30.09.2021
1379 days expired




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA-1 with RSA Encryption
Serial Number:44AFB080D6A327BA893039862EF8406B
Thumbprint:DAC9024F54D8F6DF94935FB1732638CA6AD77C13
SHA256 / Certificate:BocmAzGnJAPZCfEF5pvPDTLhvSST/8bZIG0RvNZ3Bzk=
SHA256 hex / Cert (DANE * 0 1):0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
SHA256 hex / PublicKey (DANE * 1 1):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
SHA256 hex / Subject Public Key Information (SPKI):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
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

No data found or small Code-update

 

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

Small Code Update - wait one minute

 

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.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com

 

QNr.DomainTypeNS used
1
com
NS
d.root-servers.net (2001:500:2d::d)

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.simply.com: 46.36.215.2
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: ns2.simply.com
185.25.141.15

Answer: ns3.simply.com
2a00:1c98:10:26::10, 83.217.78.186

Answer: ns4.simply.com
2a01:7e00::f03c:91ff:fe50:2326, 85.159.211.233

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.flow-robotics.com
0

no CAA entry found
1
0
flow-robotics.com
0

no CAA entry found
1
0
com
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
flow-robotics.com
v=spf1 include:spf.protection.outlook.com include:spf.live.odoocloud.dk -all
ok
1
0
www.flow-robotics.com

ok
1
0
_acme-challenge.flow-robotics.com

Name Error - The domain name does not exist
1
0
_acme-challenge.www.flow-robotics.com

Name Error - The domain name does not exist
1
0
_acme-challenge.flow-robotics.com.flow-robotics.com

Name Error - The domain name does not exist
1
0
_acme-challenge.www.flow-robotics.com.flow-robotics.com

Name Error - The domain name does not exist
1
0
_acme-challenge.www.flow-robotics.com.www.flow-robotics.com

Name Error - The domain name does not exist
1
0

 

16. DomainService - Entries

No DomainServiceEntries entries found

 

 

17. Cipher Suites

No Ciphers found

 

18. Portchecks

DomainIPPortDescriptionResultAnswer
flow-robotics.com
52.47.137.87
21
FTP



flow-robotics.com
52.47.137.87
21
FTP



flow-robotics.com
52.47.137.87
22
SSH



flow-robotics.com
52.47.137.87
22
SSH



flow-robotics.com
52.47.137.87
25
SMTP



flow-robotics.com
52.47.137.87
25
SMTP



flow-robotics.com
52.47.137.87
53
DNS



flow-robotics.com
52.47.137.87
53
DNS



flow-robotics.com
52.47.137.87
110
POP3



flow-robotics.com
52.47.137.87
110
POP3



flow-robotics.com
52.47.137.87
143
IMAP



flow-robotics.com
52.47.137.87
143
IMAP



flow-robotics.com
52.47.137.87
465
SMTP (encrypted)



flow-robotics.com
52.47.137.87
465
SMTP (encrypted)



flow-robotics.com
52.47.137.87
587
SMTP (encrypted, submission)



flow-robotics.com
52.47.137.87
587
SMTP (encrypted, submission)



flow-robotics.com
52.47.137.87
993
IMAP (encrypted)



flow-robotics.com
52.47.137.87
993
IMAP (encrypted)



flow-robotics.com
52.47.137.87
995
POP3 (encrypted)



flow-robotics.com
52.47.137.87
995
POP3 (encrypted)



flow-robotics.com
52.47.137.87
1433
MS SQL



flow-robotics.com
52.47.137.87
1433
MS SQL



flow-robotics.com
52.47.137.87
2082
cPanel (http)



flow-robotics.com
52.47.137.87
2082
cPanel (http)



flow-robotics.com
52.47.137.87
2083
cPanel (https)



flow-robotics.com
52.47.137.87
2083
cPanel (https)



flow-robotics.com
52.47.137.87
2086
WHM (http)



flow-robotics.com
52.47.137.87
2086
WHM (http)



flow-robotics.com
52.47.137.87
2087
WHM (https)



flow-robotics.com
52.47.137.87
2087
WHM (https)



flow-robotics.com
52.47.137.87
2089
cPanel Licensing



flow-robotics.com
52.47.137.87
2089
cPanel Licensing



flow-robotics.com
52.47.137.87
2095
cPanel Webmail (http)



flow-robotics.com
52.47.137.87
2095
cPanel Webmail (http)



flow-robotics.com
52.47.137.87
2096
cPanel Webmail (https)



flow-robotics.com
52.47.137.87
2096
cPanel Webmail (https)



flow-robotics.com
52.47.137.87
2222
DirectAdmin (http)



flow-robotics.com
52.47.137.87
2222
DirectAdmin (http)



flow-robotics.com
52.47.137.87
2222
DirectAdmin (https)



flow-robotics.com
52.47.137.87
2222
DirectAdmin (https)



flow-robotics.com
52.47.137.87
3306
mySql



flow-robotics.com
52.47.137.87
3306
mySql



flow-robotics.com
52.47.137.87
5224
Plesk Licensing



flow-robotics.com
52.47.137.87
5224
Plesk Licensing



flow-robotics.com
52.47.137.87
5432
PostgreSQL



flow-robotics.com
52.47.137.87
5432
PostgreSQL



flow-robotics.com
52.47.137.87
8080
Ookla Speedtest (http)



flow-robotics.com
52.47.137.87
8080
Ookla Speedtest (http)



flow-robotics.com
52.47.137.87
8080
Ookla Speedtest (https)



flow-robotics.com
52.47.137.87
8080
Ookla Speedtest (https)



flow-robotics.com
52.47.137.87
8083
VestaCP http



flow-robotics.com
52.47.137.87
8083
VestaCP http



flow-robotics.com
52.47.137.87
8083
VestaCP https



flow-robotics.com
52.47.137.87
8083
VestaCP https



flow-robotics.com
52.47.137.87
8443
Plesk Administration (https)



flow-robotics.com
52.47.137.87
8443
Plesk Administration (https)



flow-robotics.com
52.47.137.87
8447
Plesk Installer + Updates



flow-robotics.com
52.47.137.87
8447
Plesk Installer + Updates



flow-robotics.com
52.47.137.87
8880
Plesk Administration (http)



flow-robotics.com
52.47.137.87
8880
Plesk Administration (http)



flow-robotics.com
52.47.137.87
10000
Webmin (http)



flow-robotics.com
52.47.137.87
10000
Webmin (http)



flow-robotics.com
52.47.137.87
10000
Webmin (https)



flow-robotics.com
52.47.137.87
10000
Webmin (https)



www.flow-robotics.com
52.47.137.87
21
FTP



www.flow-robotics.com
52.47.137.87
21
FTP



www.flow-robotics.com
52.47.137.87
22
SSH



www.flow-robotics.com
52.47.137.87
22
SSH



www.flow-robotics.com
52.47.137.87
25
SMTP



www.flow-robotics.com
52.47.137.87
25
SMTP



www.flow-robotics.com
52.47.137.87
53
DNS



www.flow-robotics.com
52.47.137.87
53
DNS



www.flow-robotics.com
52.47.137.87
110
POP3



www.flow-robotics.com
52.47.137.87
110
POP3



www.flow-robotics.com
52.47.137.87
143
IMAP



www.flow-robotics.com
52.47.137.87
143
IMAP



www.flow-robotics.com
52.47.137.87
465
SMTP (encrypted)



www.flow-robotics.com
52.47.137.87
465
SMTP (encrypted)



www.flow-robotics.com
52.47.137.87
587
SMTP (encrypted, submission)



www.flow-robotics.com
52.47.137.87
587
SMTP (encrypted, submission)



www.flow-robotics.com
52.47.137.87
993
IMAP (encrypted)



www.flow-robotics.com
52.47.137.87
993
IMAP (encrypted)



www.flow-robotics.com
52.47.137.87
995
POP3 (encrypted)



www.flow-robotics.com
52.47.137.87
995
POP3 (encrypted)



www.flow-robotics.com
52.47.137.87
1433
MS SQL



www.flow-robotics.com
52.47.137.87
1433
MS SQL



www.flow-robotics.com
52.47.137.87
2082
cPanel (http)



www.flow-robotics.com
52.47.137.87
2082
cPanel (http)



www.flow-robotics.com
52.47.137.87
2083
cPanel (https)



www.flow-robotics.com
52.47.137.87
2083
cPanel (https)



www.flow-robotics.com
52.47.137.87
2086
WHM (http)



www.flow-robotics.com
52.47.137.87
2086
WHM (http)



www.flow-robotics.com
52.47.137.87
2087
WHM (https)



www.flow-robotics.com
52.47.137.87
2087
WHM (https)



www.flow-robotics.com
52.47.137.87
2089
cPanel Licensing



www.flow-robotics.com
52.47.137.87
2089
cPanel Licensing



www.flow-robotics.com
52.47.137.87
2095
cPanel Webmail (http)



www.flow-robotics.com
52.47.137.87
2095
cPanel Webmail (http)



www.flow-robotics.com
52.47.137.87
2096
cPanel Webmail (https)



www.flow-robotics.com
52.47.137.87
2096
cPanel Webmail (https)



www.flow-robotics.com
52.47.137.87
2222
DirectAdmin (http)



www.flow-robotics.com
52.47.137.87
2222
DirectAdmin (http)



www.flow-robotics.com
52.47.137.87
2222
DirectAdmin (https)



www.flow-robotics.com
52.47.137.87
2222
DirectAdmin (https)



www.flow-robotics.com
52.47.137.87
3306
mySql



www.flow-robotics.com
52.47.137.87
3306
mySql



www.flow-robotics.com
52.47.137.87
5224
Plesk Licensing



www.flow-robotics.com
52.47.137.87
5224
Plesk Licensing



www.flow-robotics.com
52.47.137.87
5432
PostgreSQL



www.flow-robotics.com
52.47.137.87
5432
PostgreSQL



www.flow-robotics.com
52.47.137.87
8080
Ookla Speedtest (http)



www.flow-robotics.com
52.47.137.87
8080
Ookla Speedtest (http)



www.flow-robotics.com
52.47.137.87
8080
Ookla Speedtest (https)



www.flow-robotics.com
52.47.137.87
8080
Ookla Speedtest (https)



www.flow-robotics.com
52.47.137.87
8083
VestaCP http



www.flow-robotics.com
52.47.137.87
8083
VestaCP http



www.flow-robotics.com
52.47.137.87
8083
VestaCP https



www.flow-robotics.com
52.47.137.87
8083
VestaCP https



www.flow-robotics.com
52.47.137.87
8443
Plesk Administration (https)



www.flow-robotics.com
52.47.137.87
8443
Plesk Administration (https)



www.flow-robotics.com
52.47.137.87
8447
Plesk Installer + Updates



www.flow-robotics.com
52.47.137.87
8447
Plesk Installer + Updates



www.flow-robotics.com
52.47.137.87
8880
Plesk Administration (http)



www.flow-robotics.com
52.47.137.87
8880
Plesk Administration (http)



www.flow-robotics.com
52.47.137.87
10000
Webmin (http)



www.flow-robotics.com
52.47.137.87
10000
Webmin (http)



www.flow-robotics.com
52.47.137.87
10000
Webmin (https)



www.flow-robotics.com
52.47.137.87
10000
Webmin (https)



 

 

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