CRL & OCSP report for unify-stg.ets.org (Educational Testing Service)

unify-stg.ets.org

Certificate details for unify-stg.ets.org (At position 0 in certificate chain)
Serial number:
hex: 4a1468bb79d09831d57378f4845532d9
int: 98468841849219502566446775020048167641
Issued by: COMODO RSA Organization Validation Secure Server CA
Public Key Algorithm: RSA
Not valid before:
Not valid after:
Organization: Educational Testing Service
Organization unit: Non-Production-LB
Organization unit: Hosted by Educational Testing Service
Organization unit: Unified Communications
Address: 660 Rosedale Road
Postal code: 08541
State / Province: New Jersey
Locality: Princeton
Country: US
  • This certificate does not contain any links to an LDAP server
  • This certificate does not contain any internal server links
  • This certificate does not contain any links with an unknown format

Check certificate compliance for unify-stg.ets.org.

Certificate Revocation List (CRL)

This CRL was cached at
http://crl.comodoca.com/COMODORSAOrganizationValidationSecureServerCA.crl

CRL information

Source: CRL Distribution Points in Certificate
Location: http://crl.comodoca.com/COMODORSAOrganizationValidationSecureServerCA.crl
Size: 452029 bytes (DER data)
Response time: 297.59783ms
This update:
Next update:
Revoked: No
Revoked certificates in CRL: 12719

Relevant server response headers

Date:
Last Modified:
Expires:

Server and network information

Server Software: cloudflare-nginx
Content Delivery Network (CDN): CloudFlare
Cache Information: HIT

Raw CRL response headers

Cache-Control: [public, max-age=14400]
Cf-Cache-Status: [HIT]
Cf-Ray: [357aa81640f51864-EWR]
Content-Type: [application/x-pkcs7-crl]
Date: [Sun, 30 Apr 2017 12:55:39 GMT]
Etag: ["59058691-44dfa"]
Expires: [Sun, 30 Apr 2017 16:55:39 GMT]
Last-Modified: [Sun, 30 Apr 2017 06:39:13 GMT]
Server: [cloudflare-nginx]
Set-Cookie: [__cfduid=dffbc2a5c7a3197f1e8108010bab0a14a1493556939; expires=Mon, 30-Apr-18 12:55:39 GMT; path=/; domain=.comodoca.com; HttpOnly]
Vary: [Accept-Encoding]
X-Ccacdn-Mirror-Id: [dwdccacrl5]
  • Content-Type in response is set 'application/x-pkcs7-crl' and should be replaced with 'application/pkix-crl' (RFC 5280, section 4.2.1.13)
  • This CRL file is DER encoded
  • Issuer field is byte-for-byte equivalent with issuers subject
  • Response is already valid
  • Response is not expired
  • ThisUpdate is less than seven days old, CRLs must be updated and reissued at least every seven days (Mozilla Maintenance Policy section 3)
  • The NextUpdate field is not more than ten days beyond the value of the ThisUpdate field (Mozilla & Baseline Requirements)
  • Last-Modified header is the same as ThisUpdate (RFC 5019, section 6.2)
  • NextUpdate is after the date in the Expires cache header
  • The Cache-Control max-age header does not outlive NextUpdate
  • ThisUpdate has a date before NextUpdate
  • Expires cache header is not the same as the NextUpdate field (RFC 5019 section 6.2)

Online Certificate Status Protocol (OCSP)

This OCSP response was cached at
http://ocsp.comodoca.com (POST)Good

OCSP response information

Source: Authority Information Access in Certificate
Location: http://ocsp.comodoca.com (POST)
Size: 471 bytes (DER data)
Response time: 586.077391ms
Signature algorithm: SHA256WithRSA
Signature type: CA Signed
Reported statuses: 1
This update:
Next update:
Produced at:
Status: Good

Relevant server response headers

Date:
Last Modified:
Expires:
Cache Control Max-age: 150h20m28s

Server and network information

Server Software: Apache

Raw OCSP request (PEM encoded)

-----BEGIN OCSP REQUEST-----
MFEwTzBNMEswSTAJBgUrDgMCGgUABBQLqIKj6Gi5thHaqKC1ECU9aXsCRQQUmvMr
2s+tT7YvuypISCoStxtCwSQCEEoUaLt50Jgx1XN49IRVMtk=
-----END OCSP REQUEST-----

Raw OCSP response (PEM encoded)

-----BEGIN OCSP RESPONSE-----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-----END OCSP RESPONSE-----

Raw OCSP Signing Certificate (PEM encoded)


Raw OCSP response headers

Cache-Control: [max-age=541228,public,no-transform,must-revalidate]
Content-Length: [471]
Content-Type: [application/ocsp-response]
Date: [Sun, 30 Apr 2017 12:55:39 GMT]
Etag: [ED52CC25EF51AFC29E8BE584262BF3BD03299205]
Expires: [Sat, 06 May 2017 19:26:08 GMT]
Last-Modified: [Sat, 29 Apr 2017 19:26:08 GMT]
Server: [Apache]
X-Ocsp-Reponder-Id: [rmdccaocsp26]
  • OCSP response is valid for at least 8 hours (Microsoft)
  • OCSP response is available at least 8 hours before the current period expires or at ½ the validity if valid for more than 16 hours (Microsoft)
  • Content-Type in response is set to 'application/ocsp-response'
  • Response is already valid
  • Response is not expired
  • ThisUpdate is less than four days old, OCSP information must be updated at least every four days (Mozilla & Baseline Requirements)
  • The NextUpdate field is not more than ten days beyond the value of the ThisUpdate field (Mozilla & Baseline Requirements)
  • Last-Modified header is the same as ThisUpdate (RFC 5019, section 6.2)
  • NextUpdate is after the date in the Expires cache header
  • The Cache-Control max-age header does not outlive NextUpdate
  • ThisUpdate has a date before NextUpdate
  • Expires cache header is the same as the NextUpdate field (RFC 5019 section 6.2)
This OCSP response was cached at
http://ocsp.comodoca.com (GET)Good

OCSP response information

Source: Authority Information Access in Certificate
Location: http://ocsp.comodoca.com (GET)
Size: 471 bytes (DER data)
Response time: 594.907451ms
Signature algorithm: SHA256WithRSA
Signature type: CA Signed
Reported statuses: 1
This update:
Next update:
Produced at:
Status: Good

Relevant server response headers

Date:
Last Modified:
Expires:
Cache Control Max-age: 150h20m28s

Server and network information

Server Software: Apache

URL used for GET request

http:/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQLqIKj6Gi5thHaqKC1ECU9aXsCRQQUmvMr2s%2BtT7YvuypISCoStxtCwSQCEEoUaLt50Jgx1XN49IRVMtk%3D

Raw OCSP request (PEM encoded)

-----BEGIN OCSP REQUEST-----
MFEwTzBNMEswSTAJBgUrDgMCGgUABBQLqIKj6Gi5thHaqKC1ECU9aXsCRQQUmvMr
2s+tT7YvuypISCoStxtCwSQCEEoUaLt50Jgx1XN49IRVMtk=
-----END OCSP REQUEST-----

Raw OCSP response (PEM encoded)

-----BEGIN OCSP RESPONSE-----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-----END OCSP RESPONSE-----

Raw OCSP Signing Certificate (PEM encoded)


Raw OCSP response headers

Cache-Control: [max-age=541228,public,no-transform,must-revalidate]
Content-Length: [471]
Content-Type: [application/ocsp-response]
Date: [Sun, 30 Apr 2017 12:55:39 GMT]
Etag: [ED52CC25EF51AFC29E8BE584262BF3BD03299205]
Expires: [Sat, 06 May 2017 19:26:08 GMT]
Last-Modified: [Sat, 29 Apr 2017 19:26:08 GMT]
Server: [Apache]
X-Ocsp-Reponder-Id: [rmdccaocsp26]
  • OCSP requests is smaller than 255 bytes
  • OCSP response is valid for at least 8 hours (Microsoft)
  • OCSP response is available at least 8 hours before the current period expires or at ½ the validity if valid for more than 16 hours (Microsoft)
  • Content-Type in response is set to 'application/ocsp-response'
  • Response is already valid
  • Response is not expired
  • ThisUpdate is less than four days old, OCSP information must be updated at least every four days (Mozilla & Baseline Requirements)
  • The NextUpdate field is not more than ten days beyond the value of the ThisUpdate field (Mozilla & Baseline Requirements)
  • Last-Modified header is the same as ThisUpdate (RFC 5019, section 6.2)
  • NextUpdate is after the date in the Expires cache header
  • The Cache-Control max-age header does not outlive NextUpdate
  • ThisUpdate has a date before NextUpdate
  • Expires cache header is the same as the NextUpdate field (RFC 5019 section 6.2)

COMODO RSA Organization Validation Secure Server CA (CA Certificate)

Certificate details for COMODO RSA Organization Validation Secure Server CA (At position 1 in certificate chain)
Serial number:
hex: 36825e7fb5a481937ef6d1736bb93ca6
int: 72455227028690029815281926829722123430
Issued by: COMODO RSA Certification Authority
Public Key Algorithm: RSA
Not valid before:
Not valid after:
Organization: COMODO CA Limited
State / Province: Greater Manchester
Locality: Salford
Country: GB
  • This certificate does not contain any links to an LDAP server
  • This certificate does not contain any internal server links
  • This certificate does not contain any links with an unknown format

Certificate Revocation List (CRL)

This CRL was cached at
http://crl.comodoca.com/COMODORSACertificationAuthority.crl

CRL information

Source: CRL Distribution Points in Certificate
Location: http://crl.comodoca.com/COMODORSACertificationAuthority.crl
Size: 812 bytes (DER data)
Response time: 14.61106ms
This update:
Next update:
Revoked: No
Revoked certificates in CRL: 1

Relevant server response headers

Date:
Last Modified:
Expires:

Server and network information

Server Software: cloudflare-nginx
Content Delivery Network (CDN): CloudFlare
Cache Information: HIT

Raw CRL response headers

Cache-Control: [public, max-age=14400]
Cf-Cache-Status: [HIT]
Cf-Ray: [357aa81641e9219e-EWR]
Content-Type: [application/x-pkcs7-crl]
Date: [Sun, 30 Apr 2017 12:55:39 GMT]
Etag: ["59049e60-333"]
Expires: [Sun, 30 Apr 2017 16:55:39 GMT]
Last-Modified: [Sat, 29 Apr 2017 14:08:32 GMT]
Server: [cloudflare-nginx]
Set-Cookie: [__cfduid=d074d8b51a854c4ef2551d3f8ff933f031493556939; expires=Mon, 30-Apr-18 12:55:39 GMT; path=/; domain=.comodoca.com; HttpOnly]
Vary: [Accept-Encoding]
X-Ccacdn-Mirror-Id: [dwdccacrl3]
  • Content-Type in response is set 'application/x-pkcs7-crl' and should be replaced with 'application/pkix-crl' (RFC 5280, section 4.2.1.13)
  • This CRL file is DER encoded
  • Issuer field is byte-for-byte equivalent with issuers subject
  • Response is already valid
  • Response is not expired
  • Revocation information is updated at least once every twelve months
  • The value of the NextUpdate field is not more than twelve months beyond the value of the ThisUpdate field
  • Last-Modified header is the same as ThisUpdate (RFC 5019, section 6.2)
  • NextUpdate is after the date in the Expires cache header
  • The Cache-Control max-age header does not outlive NextUpdate
  • ThisUpdate has a date before NextUpdate
  • Expires cache header is not the same as the NextUpdate field (RFC 5019 section 6.2)

Online Certificate Status Protocol (OCSP)

This OCSP response was cached at
http://ocsp.comodoca.com (POST)Good

OCSP response information

Source: Authority Information Access in Certificate
Location: http://ocsp.comodoca.com (POST)
Size: 727 bytes (DER data)
Response time: 588.645421ms
Signature algorithm: SHA384WithRSA
Signature type: CA Signed
Reported statuses: 1
This update:
Next update:
Produced at:
Status: Good

Relevant server response headers

Date:
Last Modified:
Expires:
Cache Control Max-age: 97h12m52s

Server and network information

Server Software: Apache

Raw OCSP request (PEM encoded)

-----BEGIN OCSP REQUEST-----
MFEwTzBNMEswSTAJBgUrDgMCGgUABBReAhtobFzTvhaRmVeJ38QUchY9AwQUu69+
Aj36pvE8hI6t7jiY7NkyMtQCEDaCXn+1pIGTfvbRc2u5PKY=
-----END OCSP REQUEST-----

Raw OCSP response (PEM encoded)

-----BEGIN OCSP RESPONSE-----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-----END OCSP RESPONSE-----

Raw OCSP Signing Certificate (PEM encoded)


Raw OCSP response headers

Cache-Control: [max-age=349972,public,no-transform,must-revalidate]
Content-Length: [727]
Content-Type: [application/ocsp-response]
Date: [Sun, 30 Apr 2017 12:55:39 GMT]
Etag: [4338159A01F810ABD94E4C1A158F656710EC9FAF]
Expires: [Thu, 04 May 2017 14:18:32 GMT]
Last-Modified: [Thu, 27 Apr 2017 14:18:32 GMT]
Server: [Apache]
X-Ocsp-Reponder-Id: [rmdccaocsp26]
  • OCSP response is valid for at least 8 hours (Microsoft)
  • OCSP response is available at least 8 hours before the current period expires or at ½ the validity if valid for more than 16 hours (Microsoft)
  • Content-Type in response is set to 'application/ocsp-response'
  • Response is already valid
  • Response is not expired
  • Revocation information is updated at least once every twelve months
  • The value of the NextUpdate field is not more than twelve months beyond the value of the ThisUpdate field
  • Last-Modified header is the same as ThisUpdate (RFC 5019, section 6.2)
  • NextUpdate is after the date in the Expires cache header
  • The Cache-Control max-age header does not outlive NextUpdate
  • ThisUpdate has a date before NextUpdate
  • Expires cache header is the same as the NextUpdate field (RFC 5019 section 6.2)
This OCSP response was cached at
http://ocsp.comodoca.com (GET)Good

OCSP response information

Source: Authority Information Access in Certificate
Location: http://ocsp.comodoca.com (GET)
Size: 727 bytes (DER data)
Response time: 585.531674ms
Signature algorithm: SHA384WithRSA
Signature type: CA Signed
Reported statuses: 1
This update:
Next update:
Produced at:
Status: Good

Relevant server response headers

Date:
Last Modified:
Expires:
Cache Control Max-age: 97h12m52s

Server and network information

Server Software: Apache

URL used for GET request

http:/MFEwTzBNMEswSTAJBgUrDgMCGgUABBReAhtobFzTvhaRmVeJ38QUchY9AwQUu69%2BAj36pvE8hI6t7jiY7NkyMtQCEDaCXn%2B1pIGTfvbRc2u5PKY%3D

Raw OCSP request (PEM encoded)

-----BEGIN OCSP REQUEST-----
MFEwTzBNMEswSTAJBgUrDgMCGgUABBReAhtobFzTvhaRmVeJ38QUchY9AwQUu69+
Aj36pvE8hI6t7jiY7NkyMtQCEDaCXn+1pIGTfvbRc2u5PKY=
-----END OCSP REQUEST-----

Raw OCSP response (PEM encoded)

-----BEGIN OCSP RESPONSE-----
MIIC0woBAKCCAswwggLIBgkrBgEFBQcwAQEEggK5MIICtTCBnqIWBBS7r34CPfqm
8TyEjq3uOJjs2TIy1BgPMjAxNzA0MjcxNDE4MzJaMHMwcTBJMAkGBSsOAwIaBQAE
FF4CG2hsXNO+FpGZV4nfxBRyFj0DBBS7r34CPfqm8TyEjq3uOJjs2TIy1AIQNoJe
f7WkgZN+9tFza7k8poAAGA8yMDE3MDQyNzE0MTgzMlqgERgPMjAxNzA1MDQxNDE4
MzJaMA0GCSqGSIb3DQEBDAUAA4ICAQAUtkkQs8WUmzyYHHhvMh0uav0gOiv7knpf
MKg3SNEEeNJ/ksych/DOnxyZm+mMzp33Zstm+SxWlY/3ZEmXPRMRH0cIkMG1zAKF
hN73Ay3fQFdu7gq04WLznqtN8HCG47E5LHfCxcZmscv9d0jZmYeYyoKXlrxPAh3t
w8Yx6qEzcyGBJEq1nPxFF9zeziMIqlkG7HSlUIEju/szmyeyOkSBPreUEc4szlmF
3jB0oJ6xaRehJovF7a9vNN7UY6TEkrGqpwQ2bdh9Irx6hxDGNcIcIVx47rBhiuvA
C6tcjr4HSJWMN8bjwPzz9QsU91AIKxadZ0pm+FbFc8gbjCaTwaTj8BQ1WFRrTgP2
J0tIV6umyDcz7CT+EfVf3V61e21/an1HE8Vw/RTKjGitSoSKZH6SsRpQHr0V2D7A
Ponh0eWy+XroK6Vfq/v8Qkmg8aG6MQhZWoGw44zJWJZBU59TufssgGboprtFHhDw
iq0g6dXqexCQWVtU1m+Ba9qMaz5BTUi/JCvYaJNKt1TJcqsBZPHhe6kYyHTp6Noq
rpcqdPjqe/vaGrHrxkUGmjMXea2dF8ZdekicnIavOiuXDe4vdazYcnyb8+whFXy1
Hjem6CKsvRIOysfaGcSLhlRb8mj4cpfpzyI7KRRLgJo2H8z8js3GXpUlb/7bHIW/
7lLdqnpqgQ==
-----END OCSP RESPONSE-----

Raw OCSP Signing Certificate (PEM encoded)


Raw OCSP response headers

Cache-Control: [max-age=349972,public,no-transform,must-revalidate]
Content-Length: [727]
Content-Type: [application/ocsp-response]
Date: [Sun, 30 Apr 2017 12:55:39 GMT]
Etag: [4338159A01F810ABD94E4C1A158F656710EC9FAF]
Expires: [Thu, 04 May 2017 14:18:32 GMT]
Last-Modified: [Thu, 27 Apr 2017 14:18:32 GMT]
Server: [Apache]
X-Ocsp-Reponder-Id: [rmdccaocsp26]
  • OCSP requests is smaller than 255 bytes
  • OCSP response is valid for at least 8 hours (Microsoft)
  • OCSP response is available at least 8 hours before the current period expires or at ½ the validity if valid for more than 16 hours (Microsoft)
  • Content-Type in response is set to 'application/ocsp-response'
  • Response is already valid
  • Response is not expired
  • Revocation information is updated at least once every twelve months
  • The value of the NextUpdate field is not more than twelve months beyond the value of the ThisUpdate field
  • Last-Modified header is the same as ThisUpdate (RFC 5019, section 6.2)
  • NextUpdate is after the date in the Expires cache header
  • The Cache-Control max-age header does not outlive NextUpdate
  • ThisUpdate has a date before NextUpdate
  • Expires cache header is the same as the NextUpdate field (RFC 5019 section 6.2)

COMODO RSA Certification Authority (CA Certificate)

Certificate details for COMODO RSA Certification Authority (At position 2 in certificate chain)
Serial number:
hex: 4caaf9cadb636fe01ff74ed85b03869d
int: 101909084537582093308941363524873193117
Issued by: COMODO RSA Certification Authority
Public Key Algorithm: RSA
Not valid before:
Not valid after:
Organization: COMODO CA Limited
State / Province: Greater Manchester
Locality: Salford
Country: GB
  • This certificate does not contain any links to an LDAP server
  • This certificate does not contain any internal server links
  • This certificate does not contain any links with an unknown format

This is a self signed certificate

Check the revocation status for another website

Created by Paul van Brouwershaven
Revoked certificates can't and should not be trusted, these certificate will cause errors like "NET::ERR_CERT_REVOKED" in browsers.