tls.automattic.com
Issued by R3
About this certificate
This digital certificate with serial number 03:a2:3a:65:24:05:99:c9:93:5b:4a:b1:3d:70:45:6c:61:5e was issued on by Let's Encrypt.
With 2 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:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
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): 03:a2:3a:65:24:05:99:c9:93:5b:4a:b1:3d:70:45:6c:61:5eSerial Number (int): 316540221612821489599653061430345231786334
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 09:e0:32:aa:41:1f:46:2e:a2:3a:0d:30:c5:9a:64:d1:db:46:a4:ee
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): f0:7c:c0:74:e6:bf:9f:94:99:cb:01:12:47:cb:07:8c:51:f6:4e:21
Fingerprint (sha256): 34:e2:66:c4:ca:29:17:29:56:e1:73:4e:9d:83:f0:18:10:ea:a4:e5:a8:a2:2a:8e:2d:d2:89:a5:e5:36:1e:74
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
2
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
syncd.tech
tls.automattic.com
tls.automattic.com
Other certificates including the domain name automattic.com
(limited to 100 certificates)
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Certificate
The complete raw certificate details for tls.automattic.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIEMTCCAxmgAwIBAgISA6I6ZSQFmcmTW0qxPXBFbGFeMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzA4MTAwMDQ5MDBaFw0yMzExMDgwMDQ4NTlaMB0xGzAZBgNVBAMT EnRscy5hdXRvbWF0dGljLmNvbTBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABP4b qi5/wHwxDvx2Kyr3AzKSsfZu/XqFJ9ZTE3rbXH8ktDrUFAQGrSuVqZrk8I1dkPcO QpEi+iXFg+saKKXLXsCjggIfMIICGzAOBgNVHQ8BAf8EBAMCB4AwHQYDVR0lBBYw FAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFAng MqpBH0YuojoNMMWaZNHbRqTuMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJQOYfr52L FMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3IzLm8ubGVu Y3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcvMCkGA1Ud EQQiMCCCCnN5bmNkLnRlY2iCEnRscy5hdXRvbWF0dGljLmNvbTATBgNVHSAEDDAK MAgGBmeBDAECATCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB2ALc++yTfnE26dfI5 xbpY9Gxd/ELPep81xJ4dCYEl7bSZAAABid0iAvgAAAQDAEcwRQIhANV14rpPZxX8 E3OsTxP5Hy27Oy0H+/R8V9RXrFBSo4wSAiBZHcgG04He6rD/anbzSey11M7TMCQu kOjlTKKbWcSOwQB1AOg+0No+9QY1MudXKLyJa8kD08vREWvs62nhd31tBr1uAAAB id0iAvQAAAQDAEYwRAIgSo1W7IuxzzWAKBsJJfbLW6cLgw/76xPFNgfuAKJNszMC IEX/eHu5IdvYEOPRU5Y80lkSnoP4JxrwWsk4345zcpccMA0GCSqGSIb3DQEBCwUA A4IBAQAQS2TegD8BWTtKFQGryJgLm6cGXxnY4h2uSumll9Pdapb3kppO+ZJY1/0V 6LhHpMd4fNLewroR74DbdZUS+R0N/BNxtRuNz3kzi6zRfTig2URPn6TPvyCi9rR2 jWSUX7qcR6ACNR2R5og2WVdsPes7SteHGcHZ/KZKDti1PIq1x/rtFIGsoOEhmVXe qS1Noah/JB3uiprhg5dOw82e/AXxqvY9Rs9I1qMQQ9kKeMisv4HV8kCvdfFCe3iH QS3vjJUlKgpOxP0MrIDEcq3pKMfvJ1aENQ+0y18ANX7lQ645TDaexkZVM7EFZFu1 QZ0xtDqpCqtb+8FUuMZGG2BaRSGv -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE/huqLn/AfDEO/HYrKvcDMpKx9m79 eoUn1lMTettcfyS0OtQUBAatK5WpmuTwjV2Q9w5CkSL6JcWD6xoopctewA== -----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 316540221612821489599653061430345231786334 . . . . . . . . [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 2023-08-10 00:49:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-08 00:48:59 +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) 0004fe1baa2e7fc07c310efc762b2af7033292b1f66efd7a8527d653137adb5c7f24b43ad4140406ad2b95a99ae4f08d5d90f70e429122fa25c583eb1a28a5cb5ec0 . . . . . . . . [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) 09e032aa411f462ea23a0d30c59a64d1db46a4ee . . . . . . . . . . . . . . . . [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 (34 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'syncd.tech' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tls.automattic.com' . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000189dd2202f80000040300473045022100d575e2ba4f6715fc1373ac4f13f91f2dbb3b2d07fbf47c57d457ac5052a38c120220591dc806d381deeab0ff6a76f349ecb5d4ced330242e90e8e54ca29b59c48ec1007500e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e00000189dd2202f4000004030046304402204a8d56ec8bb1cf3580281b0925f6cb5ba70b830ffbeb13c53607ee00a24db333022045ff787bb921dbd810e3d153963cd259129e83f8271af05ac938df8e7372971c . . . . [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) 00104b64de803f01593b4a1501abc8980b9ba7065f19d8e21dae4ae9a597d3dd6a96f7929a4ef99258d7fd15e8b847a4c7787cd2dec2ba11ef80db759512f91d0dfc1371b51b8dcf79338bacd17d38a0d9444f9fa4cfbf20a2f6b4768d64945fba9c47a002351d91e6883659576c3deb3b4ad78719c1d9fca64a0ed8b53c8ab5c7faed1481aca0e1219955dea92d4da1a87f241dee8a9ae183974ec3cd9efc05f1aaf63d46cf48d6a31043d90a78c8acbf81d5f240af75f1427b7887412def8c95252a0a4ec4fd0cac80c472ade928c7ef275684350fb4cb5f00357ee543ae394c369ec6465533b105645bb5419d31b43aa90aab5bfbc154b8c6461b605a4521af