tls.automattic.com
Issued by R3
About this certificate
This digital certificate with serial number 04:1b:29:90:4a:99:cd:7e:49:50:d9:b5:30:d6:49:72:90:5c was issued on by Let's Encrypt.
With 3 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
- Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
- Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)
Certificate Subject
CN=tls.automattic.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:1b:29:90:4a:99:cd:7e:49:50:d9:b5:30:d6:49:72:90:5cSerial Number (int): 357692015185564952298771159371959497822300
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 0c:c7:04:72:b9:39:97:2d:de:69:df:90:82:60:5f:96:b5:19:79:56
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 63:44:b8:31:ab:81:40:25:d1:18:37:c5:f2:e3:bc:4d:0c:02:1f:d7
Fingerprint (sha256): 6f:52:c3:19:94:8f:08:c3:9e:b8:13:b6:40:63:fa:1c:49:7f:85:20:69:b6:1f:2a:4b:bf:cf:22:d7:17:25:c8
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate tls.automattic.com
3
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for tls.automattic.com
Public Key Algorithm
ECDSA
Key Size
256
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
brooklynsteamcenter.org
tls.automattic.com
www.brooklynsteamcenter.org
tls.automattic.com
www.brooklynsteamcenter.org
Other certificates including the domain name automattic.com
(limited to 100 certificates)
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
tls.automattic.com
Certificate
The complete raw certificate details for tls.automattic.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIEXDCCA0SgAwIBAgISBBspkEqZzX5JUNm1MNZJcpBcMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzEwMDUxNDQwNDVaFw0yNDAxMDMxNDQwNDRaMB0xGzAZBgNVBAMT EnRscy5hdXRvbWF0dGljLmNvbTBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABPYO 9APZRtAcB6OesQDIAeeXB4ivJuKMg43lHxHFHx6wPpCVLAg2ZzIqe6y2uTjokTH8 6TGYJYz0Vsffnze7R66jggJKMIICRjAOBgNVHQ8BAf8EBAMCB4AwHQYDVR0lBBYw FAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFAzH BHK5OZct3mnfkIJgX5a1GXlWMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJQOYfr52L FMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3IzLm8ubGVu Y3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcvMFMGA1Ud EQRMMEqCF2Jyb29rbHluc3RlYW1jZW50ZXIub3JnghJ0bHMuYXV0b21hdHRpYy5j b22CG3d3dy5icm9va2x5bnN0ZWFtY2VudGVyLm9yZzATBgNVHSAEDDAKMAgGBmeB DAECATCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2ADtTd3U+LbmAToswWwb+QDtn 2E/D9Me9AA0tcm/h+tQXAAABiwB/nScAAAQDAEcwRQIhAOqa2LJJ0vwgsTuDk8F8 x5+cBkDlFTpuO9yGTPNAhtFRAiBsiHq7kaateY14Nh7I5DV5BLNtnLW2gGX2bHdR U6BhHAB2ANq2v2s/tbYin5vCu1xr6HCRcWy7UYSFNL2kPTBI1/urAAABiwB/nUAA AAQDAEcwRQIgGLwejPCSUNDU2lHlq68UbYnJ1oQ8nUfMaOjXxBUKkYACIQDH/SDo 9wSQ+e7C12BitUr4ejBx0Mf9BkHUkuS8Gs23njANBgkqhkiG9w0BAQsFAAOCAQEA n8d4/Dnda3mOL0AdrCD/hbQTYyWLumKB8kjIDyfoe2xoQf6Ca52gvR33uhzMyhpp GsLxU8CC4M0V+L2u76UuQ6UoSU1Acm8h6zWZgxIIe8Gwsx2jdKy+WGYxFsY1xFgf oErYkKwOD6v1oH+M+iEl6NgyT5fgmQDGfmTx0H89wsWXT3o6QK3KNLeZ2xzSUuJ+ u60DrN/G04IzYC9a8sJ2lzXDAw4RuFmcxuPA7RqRf7CbBwoIrEJVh5/0kvvx7AV7 9app8nYaDmiyjhoWdMj1t2a4uqzY0NZBDMUo3SpnXGohSh0vX9e3R24wU1B6SqJN 1URvXkDhGnpt3AjKMunN3w== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE9g70A9lG0BwHo56xAMgB55cHiK8m 4oyDjeUfEcUfHrA+kJUsCDZnMip7rLa5OOiRMfzpMZgljPRWx9+fN7tHrg== -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 357692015185564952298771159371959497822300 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-05 14:40:45 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-03 14:40:44 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'tls.automattic.com' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey) . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1) . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits) 0004f60ef403d946d01c07a39eb100c801e7970788af26e28c838de51f11c51f1eb03e90952c083667322a7bacb6b938e89131fce93198258cf456c7df9f37bb47ae . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (1 bits) 0780 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) 0cc70472b939972dde69df9082605f96b5197956 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (76 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'brooklynsteamcenter.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tls.automattic.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.brooklynsteamcenter.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b007f9d270000040300473045022100ea9ad8b249d2fc20b13b8393c17cc79f9c0640e5153a6e3bdc864cf34086d15102206c887abb91a6ad798d78361ec8e4357904b36d9cb5b68065f66c775153a0611c007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b007f9d400000040300473045022018bc1e8cf09250d0d4da51e5abaf146d89c9d6843c9d47cc68e8d7c4150a9180022100c7fd20e8f70490f9eec2d76062b54af87a3071d0c7fd0641d492e4bc1acdb79e . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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