a2ztopic.com
Issued by R3
About this certificate
This digital certificate with serial number 04:e4:11:eb:15:30:b1:bb:ea:a8:b2:fb:e5:27:ad:d9:47:36 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=a2ztopic.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:e4:11:eb:15:30:b1:bb:ea:a8:b2:fb:e5:27:ad:d9:47:36Serial Number (int): 426057340880493615011859198161234949654326
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 1c:eb:bc:9c:dc:38:25:38:04:61:e9:46:9f:27:64:9b:a7:5d:b4:91
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): c5:6a:f9:e2:e5:57:f8:b9:a1:1a:a1:1c:6b:9c:b8:25:cf:be:0a:34
Fingerprint (sha256): a0:92:20:05:fc:22:13:96:ea:2b:30:95:90:f9:6c:a1:c5:33:fe:e8:77:a7:2d:3a:b2:27:46:52:d8:94:c9:69
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate a2ztopic.com
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for a2ztopic.com
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
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
a2ztopic.com
www.a2ztopic.com
www.a2ztopic.com
Other certificates including the domain name a2ztopic.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for a2ztopic.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGLzCCBRegAwIBAgISBOQR6xUwsbvqqLL75Set2Uc2MA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzAxMjcxMzI1MTJaFw0yMzA0MjcxMzI1MTFaMBcxFTATBgNVBAMT DGEyenRvcGljLmNvbTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAJ+c fvOrYtOJGUSZGGc8nPa1zkN+KBvqNbvMkSBtXJaGU4CjRY3wrIVfrE1xWGjkGpPg Vzzef0THQXhOxNjWGKGGLF2SYlmbs76lX97QV92zxsN4mLwmNy2muXVIoMEFXqq4 oNg9yF/xqgwv0WFruG0TVm6u7vaT986tWn49UNtbOrLg50zE6P7Aemj92gEXk0Uj lAsIdGehuKmE5/hiM4FdKqrz7rprojKf7JSRvz2uS+V173QL/ZRLWnIsrtGf/Uo2 lKRRTVa34hp5jCCbOIm60haHHmVWjy6zF+PKMI0fZJ89ne4GiS6brOEqZnpUM0VA 830qxOCwOffRN2qKSb2reapZGtXqeBanqR2srWo8T9oPI7/Un0f8cEY9XqAJG3bZ eUpBmcoAHJSjUmwtpE+nxISVEPhR+iHofEhFJLqmB0DN+MfHFVJGLrqKK9L2vFKv PS+7+GtUm8VFMkPo0peYGJx4EJSc2IIbbdSyZGrAldI/GD3KVxgK1MY1y4tZzd+3 uSgVVkB2TWAj312ybZfJoZIjR5Pj2JSAgT18y8SW+rfgXhg4LbB25iYPqNxHUosG nhK0cdxkWUgDCe1ooaB0wnafBdoE9MuZX1dCPQmE66XCUMgTMRZUAknygyFfZGPP awnjyLo8hHC8UAQNlWvvtNAyE1pT+JPsQ7+VjbCdAgMBAAGjggJYMIICVDAOBgNV HQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1Ud EwEB/wQCMAAwHQYDVR0OBBYEFBzrvJzcOCU4BGHpRp8nZJunXbSRMB8GA1UdIwQY MBaAFBQusxe3WFbLrlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEF BQcwAYYVaHR0cDovL3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8v cjMuaS5sZW5jci5vcmcvMCkGA1UdEQQiMCCCDGEyenRvcGljLmNvbYIQd3d3LmEy enRvcGljLmNvbTBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAo MCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisG AQQB1nkCBAIEgfQEgfEA7wB2AHoyjFTYty22IOo44FIe6YQWcDIThU070ivBOlej UutSAAABhfOeQhIAAAQDAEcwRQIgYvOtjleX/3Zw2dfk2+koGIELtBdnDdvaahvR RDvnyHMCIQCB+RlZnOxgCS8NegAQoKcV8+kMXLEZgG3ZRvZjJrnG3gB1AK33vvp8 /xDIi509nB4+GGq0Zyldz7EMJMqFhjTr3IKKAAABhfOeQikAAAQDAEYwRAIgIhug D3RUZR1ydahSa6OUcMBqVoDFEF6vQo7p+BVu+8ACIEsxQf09s5wSsynDhm9QNzFv RpctgFPUoO0AofzACdaqMA0GCSqGSIb3DQEBCwUAA4IBAQAGCliWJnJH7MA0E8HK 3XOKlD+03XVlm6MRmtWvioTHY9mqNiJIp6qrHwmTRLgTygYUMZ4fiz3XsSJLN24l ObDz4PQaFG4oBSZKLVpUu/uilxjFHmLCCw/ZvnSASdUyNZvw9VvwMwCK4VVthQb9 RVIs6wyZXZaifjYum1OKKyXTt9d5p+crbgFy+qAr5DRo8f/9d2CMBS3Z0KAuwLib qFfAs7FSctBHs+yC14eDcDlR/6jtmoDFQjSpRhTzzuGXgG/N1OxdougXIEQ0XpcK Mla1AqunttHtemVELemHOh8aD6DeLTf8xo+5Y/i8JJe4thVLEGbc2WNR2dybQmjA 9lcR -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAn5x+86ti04kZRJkYZzyc 9rXOQ34oG+o1u8yRIG1cloZTgKNFjfCshV+sTXFYaOQak+BXPN5/RMdBeE7E2NYY oYYsXZJiWZuzvqVf3tBX3bPGw3iYvCY3Laa5dUigwQVeqrig2D3IX/GqDC/RYWu4 bRNWbq7u9pP3zq1afj1Q21s6suDnTMTo/sB6aP3aAReTRSOUCwh0Z6G4qYTn+GIz gV0qqvPuumuiMp/slJG/Pa5L5XXvdAv9lEtaciyu0Z/9SjaUpFFNVrfiGnmMIJs4 ibrSFoceZVaPLrMX48owjR9knz2d7gaJLpus4SpmelQzRUDzfSrE4LA599E3aopJ vat5qlka1ep4FqepHaytajxP2g8jv9SfR/xwRj1eoAkbdtl5SkGZygAclKNSbC2k T6fEhJUQ+FH6Ieh8SEUkuqYHQM34x8cVUkYuuoor0va8Uq89L7v4a1SbxUUyQ+jS l5gYnHgQlJzYghtt1LJkasCV0j8YPcpXGArUxjXLi1nN37e5KBVWQHZNYCPfXbJt l8mhkiNHk+PYlICBPXzLxJb6t+BeGDgtsHbmJg+o3EdSiwaeErRx3GRZSAMJ7Wih oHTCdp8F2gT0y5lfV0I9CYTrpcJQyBMxFlQCSfKDIV9kY89rCePIujyEcLxQBA2V a++00DITWlP4k+xDv5WNsJ0CAwEAAQ== -----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 426057340880493615011859198161234949654326 . . . . . . . . [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 2023-01-27 13:25:12 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-04-27 13:25:11 +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 'a2ztopic.com' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 651157342725181260063127228631149148304122319412374749231498760159179674817953444256430541628981019531167764482086422260194986368616536861023511222502543516850568970085091662311026539044794221278055570532950368361991981571340739021385181596693609930672011228309024766788977192039598117841948387117802511183790995254157748616373242285570798796419721977148546217972162926553470602164595646375464086017869446254695680435250201387568959213780949911520197870477593434886156812882361630195359102123936761097753664191978137605639168214710660945687361761802040454166709100393801548230313540417472726553734934127369384828464584189888203822369852655827123071098837065662883851884664677802654449911243773123763368833030675392738390634452147594341416825939504969014740263455544238787147711238426322426380412241255577677698584687310178257034828638289216555626710627701940494560108384892341639409849476885365464645371536642885487167886101172700971207382400900978135082481743041796463005188602714923370928797730565126297212534720251561187696607581294505169964879220196626689415600667298160319508411757748270751860524299505223766759902866115268469816644174905256245715554636165346223165922654855783830195715553769379183485869363678351340723457863837 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [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 (3 bits) 05a0 . . . . . . . . . . . . . . . . [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) 1cebbc9cdc3825380461e9469f27649ba75db491 . . . . . . . . . . . . . . . . [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 'a2ztopic.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.a2ztopic.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 (69 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 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [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) 00ef0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000185f39e42120000040300473045022062f3ad8e5797ff7670d9d7e4dbe92818810bb417670ddbda6a1bd1443be7c87302210081f919599cec60092f0d7a0010a0a715f3e90c5cb119806dd946f66326b9c6de007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000185f39e422900000403004630440220221ba00f7454651d7275a8526ba39470c06a5680c5105eaf428ee9f8156efbc002204b3141fd3db39c12b329c3866f5037316f46972d8053d4a0ed00a1fcc009d6aa . . . . [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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