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


 

 

A

 

Top config

 

Checked:
30.09.2021 23:59:19

 

Older results

 

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
git.vlsilab.polito.it
A
130.192.164.241
Reano/Piedmont/Italy (IT) - Consortium GARR
Hostname: git.vlsilab.polito.it
yes
1
0

AAAA

yes


www.git.vlsilab.polito.it

Name Error
yes
1
0
*.vlsilab.polito.it
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.git.vlsilab.polito.it
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






3 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 14748, Flags 256






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






Public Key with Algorithm 8, KeyTag 26838, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 10.10.2021, 00:00:00 +, Signature-Inception: 19.09.2021, 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: it

it
1 DS RR in the parent zone found






DS with Algorithm 10, KeyTag 41901, DigestType 2 and Digest R/f3uiHkhZH2Fy7tE+NbZrk62fKID8m62mT2jOKOu5A=






1 RRSIG RR to validate DS RR found






RRSIG-Owner it., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 13.10.2021, 20:00:00 +, Signature-Inception: 30.09.2021, 19:00:00 +, KeyTag 26838, Signer-Name: (root)






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26838 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 10, KeyTag 18395, Flags 256






Public Key with Algorithm 10, KeyTag 41901, Flags 257 (SEP = Secure Entry Point)






2 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner it., Algorithm: 10, 1 Labels, original TTL: 10800 sec, Signature-expiration: 30.10.2021, 20:02:53 +, Signature-Inception: 30.09.2021, 20:02:53 +, KeyTag 18395, Signer-Name: it






RRSIG-Owner it., Algorithm: 10, 1 Labels, original TTL: 10800 sec, Signature-expiration: 30.10.2021, 20:02:53 +, Signature-Inception: 30.09.2021, 20:02:53 +, KeyTag 41901, Signer-Name: it






Status: Good - Algorithmus 10 and DNSKEY with KeyTag 18395 used to validate the DNSKEY RRSet






Status: Good - Algorithmus 10 and DNSKEY with KeyTag 41901 used to validate the DNSKEY RRSet






Status: Valid Chain of trust. Parent-DS with Algorithm 10, KeyTag 41901, DigestType 2 and Digest "R/f3uiHkhZH2Fy7tE+NbZrk62fKID8m62mT2jOKOu5A=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: polito.it

polito.it
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 "oajbp3daijnjta91n1qut623r7j51861" between the hashed NSEC3-owner "oac8fe1ug1ruf45htjqtn3mnvqbpu8oa" and the hashed NextOwner "oak373gcs5afhe017gattf41kaa4ltaq". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner oac8fe1ug1ruf45htjqtn3mnvqbpu8oa.it., Algorithm: 10, 2 Labels, original TTL: 3600 sec, Signature-expiration: 30.10.2021, 20:02:53 +, Signature-Inception: 30.09.2021, 20:02:53 +, KeyTag 18395, Signer-Name: it






DS-Query in the parent zone sends valid NSEC3 RR with the Hash "5qdh6b7s478r2623it9gdg7dib1jek26" as Owner. That's the Hash of "it" with the NextHashedOwnerName "5qehang3k6d9jvoo17kameqgiik4bbn3". So that domain name is the Closest Encloser of "polito.it". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner 5qdh6b7s478r2623it9gdg7dib1jek26.it., Algorithm: 10, 2 Labels, original TTL: 3600 sec, Signature-expiration: 30.10.2021, 20:02:53 +, Signature-Inception: 30.09.2021, 20:02:53 +, KeyTag 18395, Signer-Name: it






0 DNSKEY RR found









Zone: vlsilab.polito.it

vlsilab.polito.it
0 DS RR in the parent zone found






0 DNSKEY RR found









Zone: git.vlsilab.polito.it

git.vlsilab.polito.it
0 DS RR in the parent zone found






0 DNSKEY RR found









Zone: www.git.vlsilab.polito.it

www.git.vlsilab.polito.it
0 DS RR in the parent zone found

 

3. Name Servers

DomainNameserverNS-IP
www.git.vlsilab.polito.it
  leonardo.polito.it

git.vlsilab.polito.it
  leonardo.polito.it
130.192.3.21
Turin/Piedmont/Italy (IT) - Consortium GARR

vlsilab.polito.it
  leonardo.polito.it
130.192.3.21
Turin/Piedmont/Italy (IT) - Consortium GARR

polito.it
  giove.polito.it
130.192.3.24
Turin/Piedmont/Italy (IT) - Consortium GARR


  leonardo.polito.it
130.192.3.21
Turin/Piedmont/Italy (IT) - Consortium GARR


  ns1.garr.net
193.206.141.38
Milan/Lombardy/Italy (IT) - GARR


 
2001:760:ffff:ffff::aa
Rome/Latium/Italy (IT) - Consortium GARR


  ns3.polito.it
130.192.4.30
Turin/Piedmont/Italy (IT) - Consortium GARR

it
  a.dns.it


  dns.nic.it


  m.dns.it


  nameserver.cnr.it


  r.dns.it


  s.dns.it / s2.amx

 

4. SOA-Entries


Domain:it
Zone-Name:it
Primary:dns.nic.it
Mail:hostmaster.nic.it
Serial:2021093023
Refresh:10800
Retry:900
Expire:604800
TTL:3600
num Entries:6


Domain:polito.it
Zone-Name:polito.it
Primary:leonardo.polito.it
Mail:root.leonardo.polito.it
Serial:2021093002
Refresh:10800
Retry:1800
Expire:1209600
TTL:86400
num Entries:5


Domain:vlsilab.polito.it
Zone-Name:polito.it
Primary:leonardo.polito.it
Mail:root.leonardo.polito.it
Serial:2021093002
Refresh:10800
Retry:1800
Expire:1209600
TTL:86400
num Entries:1


Domain:git.vlsilab.polito.it
Zone-Name:polito.it
Primary:leonardo.polito.it
Mail:root.leonardo.polito.it
Serial:2021093002
Refresh:10800
Retry:1800
Expire:1209600
TTL:86400
num Entries:1


Domain:www.git.vlsilab.polito.it
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


5. Screenshots

Startaddress: https://git.vlsilab.polito.it/users/sign_in, address used: https://git.vlsilab.polito.it/users/sign_in, Screenshot created 2021-10-01 00:00:49 +00:0

 

Mobil (412px x 732px)

 

343 milliseconds

 

Screenshot mobile - https://git.vlsilab.polito.it/users/sign_in
Mobil + Landscape (732px x 412px)

 

359 milliseconds

 

Screenshot mobile landscape - https://git.vlsilab.polito.it/users/sign_in
Screen (1280px x 1680px)

 

593 milliseconds

 

Screenshot Desktop - https://git.vlsilab.polito.it/users/sign_in

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport396732
content Size396901

 

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


:

:
DomainnameHttp-StatusredirectSec.G
• http://git.vlsilab.polito.it/
130.192.164.241
301
https://git.vlsilab.polito.it:443/
Html is minified: 109.46 %
0.076
A
Server: nginx
Date: Thu, 30 Sep 2021 22:00:09 GMT
Content-Type: text/html
Content-Length: 162
Connection: close
Location: https://git.vlsilab.polito.it:443/

• https://git.vlsilab.polito.it/
130.192.164.241
302
https://git.vlsilab.polito.it/users/sign_in
Html is minified: 100.00 %
2.517
A
Server: nginx
Date: Thu, 30 Sep 2021 22:00:09 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 109
Connection: close
Cache-Control: no-cache
Location: https://git.vlsilab.polito.it/users/sign_in
X-Content-Type-Options: nosniff
X-Download-Options: noopen
X-Frame-Options: DENY
X-Permitted-Cross-Domain-Policies: none
X-Request-Id: 01FGWBHMWA1RAKHT1GZ2BKHXCF
X-Runtime: 0.053403
X-Ua-Compatible: IE=edge
X-Xss-Protection: 1; mode=block
Strict-Transport-Security: max-age=63072000
Referrer-Policy: strict-origin-when-cross-origin

• https://git.vlsilab.polito.it:443/

302
https://git.vlsilab.polito.it/users/sign_in
Html is minified: 100.00 %
2.440
A
Server: nginx
Date: Thu, 30 Sep 2021 22:00:15 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 109
Connection: close
Cache-Control: no-cache
Location: https://git.vlsilab.polito.it/users/sign_in
X-Content-Type-Options: nosniff
X-Download-Options: noopen
X-Frame-Options: DENY
X-Permitted-Cross-Domain-Policies: none
X-Request-Id: 01FGWBHV79TCEDBJHAM12Q0FJY
X-Runtime: 0.022794
X-Ua-Compatible: IE=edge
X-Xss-Protection: 1; mode=block
Strict-Transport-Security: max-age=63072000
Referrer-Policy: strict-origin-when-cross-origin

• https://git.vlsilab.polito.it/users/sign_in

Inline-JavaScript (∑/total): 3/544 Inline-CSS (∑/total): 1/18157
200

Html is minified: 337.10 %
Other inline scripts (∑/total): 3/544
2.534
A
small visible content (num chars: 326)
VLSI Lab repository A complete DevOps platform GitLab is a single application for the entire software development lifecycle. From project planning and source code management to CI/CD, monitoring, and security. This is a self-managed instance of GitLab. Username or email Password Remember me Forgot your password? About GitLab
Server: nginx
Date: Thu, 30 Sep 2021 22:00:19 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding,Accept
Cache-Control: max-age=0, private, must-revalidate
Etag: W/"4a4ab542a45657db63be5e0666879ba0"
Link: </assets/application_utilities-fa3148ad24e616bfa530484a9393969c21280799fb9f29f932670d419defeb21.css>; rel=preload; as=style; type=text/css,</assets/application-2ea7e9be931f24ebc2a67091b0f0ff95ba18e386f3d312545bb5caaac6c1a8be.css>; rel=preload; as=style; type=text/css,</assets/highlight/themes/white-5c0380ce57a7c89f3f92ec056e54986509621cf4957307f8955be09a66657a1c.css>; rel=preload; as=style; type=text/css
Permissions-Policy: interest-cohort=()
Set-Cookie: _gitlab_session=1afbc528e5ac0e0499382bdd59640917; path=/; expires=Fri, 01 Oct 2021 00:00:19 GMT; secure; HttpOnly; SameSite=None
X-Content-Type-Options: nosniff
X-Download-Options: noopen
X-Frame-Options: DENY
X-Permitted-Cross-Domain-Policies: none
X-Request-Id: 01FGWBHY89VGM7JYWNH3S7CGP3
X-Runtime: 0.091708
X-Ua-Compatible: IE=edge
X-Xss-Protection: 1; mode=block
Strict-Transport-Security: max-age=63072000
Referrer-Policy: strict-origin-when-cross-origin
Content-Encoding: gzip

• http://git.vlsilab.polito.it/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
130.192.164.241
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 110.61 %
Other inline scripts (∑/total): 0/0
0.063
A
Not Found
Visible Content: 404 Not Found nginx
Server: nginx
Date: Thu, 30 Sep 2021 22:00:12 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: close
Content-Encoding: gzip

• https://130.192.164.241/
130.192.164.241
302
https://130.192.164.241/users/sign_in
Html is minified: 100.00 %
2.407
N
Certificate error: RemoteCertificateNameMismatch
Server: nginx
Date: Thu, 30 Sep 2021 22:00:12 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 103
Connection: close
Cache-Control: no-cache
Location: https://130.192.164.241/users/sign_in
X-Content-Type-Options: nosniff
X-Download-Options: noopen
X-Frame-Options: DENY
X-Permitted-Cross-Domain-Policies: none
X-Request-Id: 01FGWBHR7026C97DBBEVQ614AX
X-Runtime: 0.038853
X-Ua-Compatible: IE=edge
X-Xss-Protection: 1; mode=block
Strict-Transport-Security: max-age=63072000
Referrer-Policy: strict-origin-when-cross-origin

• https://130.192.164.241/users/sign_in

Inline-JavaScript (∑/total): 3/544 Inline-CSS (∑/total): 1/18157
200

Html is minified: 337.64 %
Other inline scripts (∑/total): 3/544
2.467
N
Certificate error: RemoteCertificateNameMismatch
small visible content (num chars: 326)
VLSI Lab repository A complete DevOps platform GitLab is a single application for the entire software development lifecycle. From project planning and source code management to CI/CD, monitoring, and security. This is a self-managed instance of GitLab. Username or email Password Remember me Forgot your password? About GitLab
Server: nginx
Date: Thu, 30 Sep 2021 22:00:22 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding,Accept
Cache-Control: max-age=0, private, must-revalidate
Etag: W/"4bed6fd64b8363dc806734c9899eac61"
Link: </assets/application_utilities-fa3148ad24e616bfa530484a9393969c21280799fb9f29f932670d419defeb21.css>; rel=preload; as=style; type=text/css,</assets/application-2ea7e9be931f24ebc2a67091b0f0ff95ba18e386f3d312545bb5caaac6c1a8be.css>; rel=preload; as=style; type=text/css,</assets/highlight/themes/white-5c0380ce57a7c89f3f92ec056e54986509621cf4957307f8955be09a66657a1c.css>; rel=preload; as=style; type=text/css
Permissions-Policy: interest-cohort=()
Set-Cookie: _gitlab_session=b73dfe7334cb6028067d5af560383111; path=/; expires=Fri, 01 Oct 2021 00:00:22 GMT; secure; HttpOnly; SameSite=None
X-Content-Type-Options: nosniff
X-Download-Options: noopen
X-Frame-Options: DENY
X-Permitted-Cross-Domain-Policies: none
X-Request-Id: 01FGWBJ1KHZS9HTRVDN87T10NP
X-Runtime: 0.047254
X-Ua-Compatible: IE=edge
X-Xss-Protection: 1; mode=block
Strict-Transport-Security: max-age=63072000
Referrer-Policy: strict-origin-when-cross-origin
Content-Encoding: gzip

 

7. Comments


1. General Results, most used to calculate the result

Aname "git.vlsilab.polito.it" is subdomain, public suffix is ".it", top-level-domain is ".it", top-level-domain-type is "country-code", Country is Italy, tld-manager is "IIT - CNR", num .it-domains preloaded: 1305 (complete: 168171)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: git.vlsilab.polito.it 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: git.vlsilab.polito.it has no ipv6 address.
AGood: No asked Authoritative Name Server had a timeout
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
Ahttps://git.vlsilab.polito.it:443/
302
https://git.vlsilab.polito.it/users/sign_in
Correct redirect https to https
Ahttps://git.vlsilab.polito.it/ 130.192.164.241
302
https://git.vlsilab.polito.it/users/sign_in
Correct redirect https to https
Ahttps://130.192.164.241/ 130.192.164.241
302
https://130.192.164.241/users/sign_in
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.
AGood: every cookie sent via https is marked as secure
AGood: Every cookie has a SameSite Attribute with a correct value Strict/Lax/None
AGood: every https has a Strict Transport Security Header
AGood: HSTS max-age is long enough, 63072000 seconds = 730 days
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: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):2 complete Content-Type - header (3 urls)
http://git.vlsilab.polito.it/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 130.192.164.241


Url with incomplete Content-Type - header - missing charset
Nhttps://130.192.164.241/ 130.192.164.241
302
https://130.192.164.241/users/sign_in
Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://130.192.164.241/users/sign_in
200

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 git.vlsilab.polito.it, 1 ip addresses, 1 different http results.

2. Header-Checks (Cross-Origin-* headers are alpha - started 2024-06-05)


3. DNS- and NameServer - Checks

AInfo:: 4 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
AInfo:: 4 Queries complete, 4 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.giove.polito.it (130.192.3.24), ns1.garr.net (193.206.141.38), leonardo.polito.it (130.192.3.21), ns3.polito.it (130.192.4.30)
AGood (1 - 3.0):: An average of 1.0 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 4 different Name Servers found: giove.polito.it, leonardo.polito.it, ns1.garr.net, ns3.polito.it, 4 Name Servers included in Delegation: giove.polito.it, leonardo.polito.it, ns1.garr.net, ns3.polito.it, 4 Name Servers included in 1 Zone definitions: giove.polito.it, leonardo.polito.it, ns1.garr.net, ns3.polito.it, 1 Name Servers listed in SOA.Primary: leonardo.polito.it.
AGood: Only one SOA.Primary Name Server found.: leonardo.polito.it.
AGood: SOA.Primary Name Server included in the delegation set.: leonardo.polito.it.
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: giove.polito.it, leonardo.polito.it, ns1.garr.net, ns3.polito.it
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: 1 Name Servers with IPv6 found (3 Name Servers without IPv6)
AGood: Name servers with different Top Level Domains / Public Suffix List entries found: 4 Name Servers, 2 Top Level Domains: it, net
AGood: Name Servers with different domain names found.: 2 different Domains found
Warning: All Name Servers from the same Country / IP location.: 4 Name Servers, 1 Countries: IT
AInfo: Ipv4-Subnet-list: 4 Name Servers, 2 different subnets (first Byte): 130., 193., 2 different subnets (first two Bytes): 130.192., 193.206., 3 different subnets (first three Bytes): 130.192.3., 130.192.4., 193.206.141.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 1 Name Servers with IPv6, 1 different subnets (first block): 2001:, 1 different subnets (first two blocks): 2001:0760:, 1 different subnets (first three blocks): 2001:0760:ffff:, 1 different subnets (first four blocks): 2001:0760:ffff:ffff:
Fatal: All Name Server IPv6 addresses from the same subnet.
AGood: Nameserver supports TCP connections: 1 good Nameserver
AGood: Nameserver supports Echo Capitalization: 1 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 1 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 1 good Nameserver
Nameserver doesn't pass all EDNS-Checks: leonardo.polito.it: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
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: 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.
AGood: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
https://git.vlsilab.polito.it/users/sign_in
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://130.192.164.241/users/sign_in
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://git.vlsilab.polito.it/users/sign_in
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://130.192.164.241/users/sign_in
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://git.vlsilab.polito.it/users/sign_in
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.
https://130.192.164.241/users/sign_in
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: All script Elements (type text/javascript) and src-Attribute have a defer / async - Attribute. So loading and executing these JavaScripts doesn't block parsing and rendering the Html-Output.
AGood: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 7 external CSS / JavaScript files found
Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 7 external CSS / JavaScript files without Cache-Control-Header, 7 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 14 complete.
Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 2 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, 2 complete.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
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.: 2 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: 102590 milliseconds, 102.590 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
git.vlsilab.polito.it
git.vlsilab.polito.it
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
git.vlsilab.polito.it
git.vlsilab.polito.it
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
Tls.1.2
no Tls.1.1
no Tls.1.0
no http/2 via ALPN
Tls.1.2
no Tls.1.1
no Tls.1.0


git.vlsilab.polito.it
130.192.164.241
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

git.vlsilab.polito.it
130.192.164.241
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
No SNI required - domain included in main certificate
Tls.1.2
no Tls.1.1
no Tls.1.0
no http/2 via ALPN
No SNI required - domain included in main certificate
Tls.1.2
no Tls.1.1
no Tls.1.0


130.192.164.241
130.192.164.241
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

130.192.164.241
130.192.164.241
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
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


130.192.164.241
130.192.164.241
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

130.192.164.241
130.192.164.241
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
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

1.
1.
CN=git.vlsilab.polito.it
30.09.2021
29.12.2021
1070 days expired
git.vlsilab.polito.it - 1 entry
1.
1.
CN=git.vlsilab.polito.it
30.09.2021

29.12.2021
1070 days expired


git.vlsilab.polito.it - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:033D3A78303098557AA16839B2E9BF24FCC6
Thumbprint:73262E833589C3FC39B363251C784C82E887B9F1
SHA256 / Certificate:6Oa09R5jB3k1rxujEm3az0y/DfPUMFf8Lz0ofOw0vNE=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):346a077a050e1c6856eadc39ea5a9b0ad35932c9bf33e4fe0725f92b2dc71445
SHA256 hex / Subject Public Key Information (SPKI):346a077a050e1c6856eadc39ea5a9b0ad35932c9bf33e4fe0725f92b2dc71445 (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)




2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020
15.09.2025
expires in 286 days


2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020

15.09.2025
expires in 286 days




KeyalgorithmRSA 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)




3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 3835 days


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 3835 days




KeyalgorithmRSA 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)
DomainnameHtmlElementrel/property∑ size∑ problems∑ int.∑ ext.∑ Origin poss.∑ SRI ParseErrors∑ SRI valid∑ SRI missing
https://git.vlsilab.polito.it/users/sign_in
a

2

0


0
0
0


form

1

0
1
0
0
0
0


img

1

0


0
0
0


link
stylesheet
3
1,504 Bytes
0
3
0
0
0
0


link
other
10
176,812 Bytes
0
9
0
0
0
0


meta
og
8
3,616 Bytes
0
2
0
0
0
0


meta
other
14
4,328 Bytes
0
1
0
0
0
0


script

4

0
4
0
0
0
0

https://130.192.164.241/users/sign_in
a

2

0


0
0
0


form

1

0


0
0
0


img

1

0


0
0
0


link
stylesheet
3

0


0
0
0


link
other
10

0


0
0
0


meta
og
8

0


0
0
0


meta
other
14

0


0
0
0


script

4

0


0
0
0

 

Details

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://git.vlsilab.polito.it/users/sign_in

a

/users/password/new


1
ok















a

https://about.gitlab.com


1
ok















form
post
/users/sign_in
200

1
ok
text/html; charset=utf-8
X-Content-Type-Options nosniff found





8023 Bytes








img
src
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
Image:


1
ok
no alt-Attribute














link
apple-touch-icon
/assets/touch-icon-ipad-a6eec6aeb9da138e507593b464fdac213047e49d3093fc30e90d9a995df83ba3.png
200

1
ok
image/png
X-Content-Type-Options nosniff found





Cache-Control: public - max-age missing.
No Compression - 2465 Bytes








link
apple-touch-icon
/assets/touch-icon-ipad-retina-8ebe416f5313483d9c1bc772b5bbe03ecad52a54eba443e5215a22caed2a16a2.png
200

1
ok
image/png
X-Content-Type-Options nosniff found





Cache-Control: public - max-age missing.
No Compression - 5662 Bytes








link
apple-touch-icon
/assets/touch-icon-iphone-5a9cee0e8a51212e70b90c87c12f382c428870c0ff67d1eb034d884b78d2dae7.png
200

1
ok
image/png
X-Content-Type-Options nosniff found





Cache-Control: public - max-age missing.
No Compression - 1949 Bytes








link
apple-touch-icon
/assets/touch-icon-iphone-retina-72e2aadf86513a56e050e7f0f2355deaa19cc17ed97bbe5147847f2748e5a3e3.png
200

1
ok
image/png
X-Content-Type-Options nosniff found





Cache-Control: public - max-age missing.
No Compression - 3460 Bytes








link
mask-icon
/assets/logo-d36b5212042cebc89b96df4bf6ac24e43db316143e89926c0db839ff694d2de4.svg
200

1
ok
image/svg+xml
X-Content-Type-Options nosniff found





Cache-Control: public - max-age missing.
No Compression - 766 Bytes








link
preload
/assets/application_utilities-fa3148ad24e616bfa530484a9393969c21280799fb9f29f932670d419defeb21.css
200

1
ok
text/css; charset=utf-8
X-Content-Type-Options nosniff found





Compression required: 13664 Bytes








link
preload
/assets/application-2ea7e9be931f24ebc2a67091b0f0ff95ba18e386f3d312545bb5caaac6c1a8be.css
200

1
ok
text/css; charset=utf-8
X-Content-Type-Options nosniff found





Compression required: 127784 Bytes








link
preload
/assets/highlight/themes/white-5c0380ce57a7c89f3f92ec056e54986509621cf4957307f8955be09a66657a1c.css
200

1
ok
text/css; charset=utf-8
X-Content-Type-Options nosniff found





Compression required: 1504 Bytes








link
search
/search/opensearch.xml


1
ok















link
shortcut icon
/uploads/-/system/appearance/favicon/1/favicon.png
200

1
ok
image/png
X-Content-Type-Options nosniff found





Cache-Control: max-age=300, public - max-age too short.
No Compression - 161006 Bytes








link
stylesheet
/assets/application_utilities-fa3148ad24e616bfa530484a9393969c21280799fb9f29f932670d419defeb21.css
200

1
ok
text/css; charset=utf-8
X-Content-Type-Options nosniff found





Cache-Control: public - max-age missing.
Compression required: 13664 Bytes






local SRI possible, possible hash-values:

 

sha256-+jFIrSTmFr+lMEhKk5OWnCEoB5n7nyn5MmcNQZ3v6yE=
sha384-vVBmx0EMwfL3FouOhpjPDzECgb5N05pl9kvpamWslIItEgDVijoDQk20IVGtBNoZ
sha512-zD2rraQboojAZDNwgQuw/SHHoZADadnNfJvbvPRQlNu53BUT6vLZf1yL1TwVX5GC5vq5/ijcLJP5oMkc6jPh8g==

 

<link rel="stylesheet" href="/assets/application_utilities-fa3148ad24e616bfa530484a9393969c21280799fb9f29f932670d419defeb21.css" crossorigin="anonymous" integrity="sha256-+jFIrSTmFr+lMEhKk5OWnCEoB5n7nyn5MmcNQZ3v6yE=" />


Content loaded via url("...")

 

data:image/svg+xml;utf8,<svg viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><path fill-rule="evenodd" d="M10.707 7.293a1 1 0 0 1 0 1.414l-3 3a1 1 0 0 1-1.414-1.414L8.586 8 6.293 5.707a1 1 0 0 1 1.414-1.414l3 3z"/></svg>2
data:image/svg+xml;utf8,<svg viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><path fill-rule="evenodd" d="M5.293 7.293a1 1 0 0 0 0 1.414l3 3a1 1 0 0 0 1.414-1.414L7.414 8l2.293-2.293a1 1 0 0 0-1.414-1.414l-3 3z"/></svg>2
data:image/svg+xml;utf8,<svg viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><path fill-rule="evenodd" d="M7.293 10.707a1 1 0 0 0 1.414 0l3-3a1 1 0 0 0-1.414-1.414L8 8.586 5.707 6.293a1 1 0 0 0-1.414 1.414l3 3z"/></svg>6

link
stylesheet
/assets/application-2ea7e9be931f24ebc2a67091b0f0ff95ba18e386f3d312545bb5caaac6c1a8be.css
200

1
ok
text/css; charset=utf-8
X-Content-Type-Options nosniff found





Cache-Control: public - max-age missing.
Compression required: 127784 Bytes






local SRI possible, possible hash-values:

 

sha256-CorFaq6UG13KtWmxh72wJoC/h4Gkpn18tRjwVhXH8Ac=
sha384-SznAkon4VPA9qG5DH9FFQ80pns9nevVVI0TjH0p3Dfx+EF86isqUx7Qp8ujRuWzj
sha512-XccOQqXdmgd9plhMmQGSaX42hs/wRv6i1g1KtkrNmxi9aFio/MIj2lN/1a03FbmDPx7uOYAHRvYVopFpQNUSmQ==

 

<link rel="stylesheet" href="/assets/application-2ea7e9be931f24ebc2a67091b0f0ff95ba18e386f3d312545bb5caaac6c1a8be.css" crossorigin="anonymous" integrity="sha256-CorFaq6UG13KtWmxh72wJoC/h4Gkpn18tRjwVhXH8Ac=" />


Content loaded via url("...")

 

./checkmark-10859545577c4790e4fc67ed0a112cedc0af8260b6d24a500d70ef5a01737b2e.png2
./icon_anchor-297aa9b0225eff3d6d0da74ce042a0ed5575b92aa66b7109a5e060a795b42e36.svg2
./icons-stacked-3610c020dc2785a142f8fa38999abeebbb475ff0888c2c6d4b2f543bb6ef4af7.svg#comment2
./icons-stacked-3610c020dc2785a142f8fa38999abeebbb475ff0888c2c6d4b2f543bb6ef4af7.svg#doc-versions2
./icons-stacked-3610c020dc2785a142f8fa38999abeebbb475ff0888c2c6d4b2f543bb6ef4af7.svg#link2
./illustrations/image_comment_light_cursor@2x-6eb274d388a8bbdbdaeee008afc79ef9dab89fb7d5409cd08739ae08059a3ce4.svg2
./illustrations/image_comment_light_cursor-c587347a929a56f8b4d78d991607598f69daef0bcc58e972cabcb72ed96663d2.svg3
./onion_skin_sprites-5c13bf92d3d6bdf19bba75b00fee5b492a43bec51bf78a01ba158b0ad099a48b.gif4
./swipemode_sprites-522fecbb380f3edfa9b09006e88a51fbcb5c26d95dba87d2e09a363a863cd4e4.gif2
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12. Html-Parsing via https://validator.nu/ / https://validator.w3.org/nu/ (started 2024-09-28, 09:00, alpha)

  Unfortunately, there are differences between the first used validator.nu and validator.w3.org/nu/ - switched to validator.w3.org/nu/. Looks like some error messages (link - fetchpriority attribute) of validator.nu are obsolete, not seen in the w3.org-version and not found in the current specification: link may have a fetchpriority attribute.

Small Code update, wait one minute

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: giove.polito.it, leonardo.polito.it, ns1.garr.net, ns3.polito.it

 

QNr.DomainTypeNS used
1
it
NS
k.root-servers.net (2001:7fd::1)

Answer: a.dns.it, dns.nic.it, m.dns.it, nameserver.cnr.it, r.dns.it, s.dns.it
2
giove.polito.it: 130.192.3.24
NS
a.dns.it (2001:678:12:0:194:0:16:215)

Answer: leonardo.polito.it
130.192.3.21

Answer: ns3.polito.it
130.192.4.30
3
net
NS
k.root-servers.net (2001:7fd::1)

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
4
ns1.garr.net: 193.206.141.38
NS
e.gtld-servers.net (2001:502:1ca1::30)

Answer: ns2.garr.net
193.206.141.42

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
git.vlsilab.polito.it
0

no CAA entry found
1
0
vlsilab.polito.it
0

no CAA entry found
1
0
polito.it
0

no CAA entry found
1
0
it
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
vlsilab.polito.it

ok
1
0
git.vlsilab.polito.it

ok
1
0
_acme-challenge.git.vlsilab.polito.it

Name Error - The domain name does not exist
1
0
_acme-challenge.git.vlsilab.polito.it.vlsilab.polito.it

Name Error - The domain name does not exist
1
0
_acme-challenge.git.vlsilab.polito.it.git.vlsilab.polito.it

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

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

 

 

Permalink: https://check-your-website.server-daten.de/?i=67b6f489-1831-45f0-906f-a32038640476

 

Last Result: https://check-your-website.server-daten.de/?q=git.vlsilab.polito.it - 2021-09-30 23:59:19

 

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<a href="https://check-your-website.server-daten.de/?q=git.vlsilab.polito.it" target="_blank">Check this Site: git.vlsilab.polito.it</a>

 

 

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QR-Code of this page - https://check-your-website.server-daten.de/?d=git.vlsilab.polito.it