zajac.boston
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:44:f9:33:1b:da:ed:a7:07:48:30:d4:1e:8d:70:1d:0c:16 was issued on by Let's Encrypt.
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=zajac.boston
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:44:f9:33:1b:da:ed:a7:07:48:30:d4:1e:8d:70:1d:0c:16Serial Number (int): 284807301888965133382975785716805443324950
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 95:5d:7f:e6:52:77:50:e1:cb:b5:28:ea:58:b9:9c:fd:01:d3:b4:f2
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 68:01:31:17:ed:1e:dd:37:57:24:e8:6b:b8:9c:89:ce:4e:d5:61:73
Fingerprint (sha256): 4a:6c:3e:f2:9a:6c:b3:7b:a4:a4:e5:37:20:f8:fc:cc:9c:74:4c:bb:9c:f0:7f:08:8c:2e:e6:d1:f8:63:dc:1a
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate zajac.boston
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for zajac.boston
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
zajac.boston
Other certificates including the domain name zajac.boston
(limited to 100 certificates)
Certificate
The complete raw certificate details for zajac.boston in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUTCCBTmgAwIBAgISA0T5Mxva7acHSDDUHo1wHQwWMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA4MzAxMTI5MDNaFw0x OTExMjgxMTI5MDNaMBcxFTATBgNVBAMTDHphamFjLmJvc3RvbjCCAiIwDQYJKoZI hvcNAQEBBQADggIPADCCAgoCggIBAMxIHHj10/uFDNMfpdgNbJ6T3gJBFBaBEQsk g2XXgUdtRPRb0Vn+RRBIh6S1YG2pBfR85lCnmvKmp1xKNxZidiORUjMszWcfM6IQ bVfOsa6Cv3NzFnx7zy77HjEAuBR0/4rPofNqFTzdgpX3bBdy5rhV0o384RKI6TuW U9zPAHUIm7hw+YtOJNyrofVSQ7MhscG0d7YdS/AU/3wChW8kKrruuDwWTDLnFi3b AQ45oGMOhxAocSRzvNFWsZvaD4xiHAxdmsIRlmC34PacVDXDpmLPupKwYM9aOyY9 Y6Dw95luk578TNg2h9rzWAvSv10PtHfPl2iiJV99QxyDJb64ajZ30Tt0Y5DzgB86 50lAstVO+4jskPc+wHPjk2NBLF6wEsa8yXytmqsZHsmgmnE3BOCY9/hurB8o7G6s 0p8v1nvWG7aM20SDSAtAL/oUVbc/ymUj3yMVulYhpAdW/E5qqiuezdMSOF383wqt 0ELO0gEQL9xOJZ1H9NppCcrpy9cykr6XTSwe2h8LfJTnsUP/jzA32YOv/ttpY2LC Cj7adAc3+DmeVqszXGRc+BCf6oKB3xSWx6o7sQ9r/vycwIV6zi++IGXbHzQWVKuE zaEkmIvVecrbY3Ha5gJGGirF1/6B09QHtgLPzOPy9N9wGDD/PQx8uJ0abZIHh+40 P2uMoV61AgMBAAGjggJiMIICXjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYI KwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFJVdf+ZS d1Dhy7Uo6li5nP0B07TyMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyh MG8GCCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgz LmxldHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgz LmxldHNlbmNyeXB0Lm9yZy8wFwYDVR0RBBAwDoIMemFqYWMuYm9zdG9uMEwGA1Ud IARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0 dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBQYKKwYBBAHWeQIEAgSB9gSB8wDx AHcAb1N2rDHwMRnYmQCkURX/dxUcEdkCwQApBo2yCJo32RMAAAFs4oAg3AAABAMA SDBGAiEAgVD998CMSuZ+wQO6LklLVkf6UqKLZ2LRcdpD+07LgasCIQCj5UMlw8Rt 3FK1SrOQqtfSbedkMhLB1Sq/FapFQLSxEAB2ACk8UZZUyDlluqpQ/FgH1Ldvv1h6 KXLcpMMM9OVFR/R4AAABbOKAINkAAAQDAEcwRQIgd2faNOVwVrYGEY0B0ug5erlY 1cyYII/gxSG8ZC6BhGYCIQCvkqrlSmK6H9l27uKcNg5ZJHy1GJDTT53H8HeTNi0N 5TANBgkqhkiG9w0BAQsFAAOCAQEAC2IK51UIC7bF/HAJy2Ih1Hl4Miodb1NMyz2P v/3qLlICpswjwuUq2lLPo1sKfb/Ygh/u3Ylrzb0mLmJJDTJDzcLSDqbEtXX0JFiE qrowqjMQGrXoNT31d1Z5UzrOelYAaUITu9fhEFD4TltXikRXi2UbumuLtRDU06Ng vOF1DqukxBoHn8r1+DRkeVe6nWpHCdm0BCEU5GnpR3olSBOgNTQYSGUcEnQYRKvW LACRPGUjU2YuaeJbMbOGiYVHehDF8wA23sffi91bWjWUd786hegzext3zZjClv93 RLXknw7N0Gjua0EzfvKSBAgk3I+pmG5SPv8hWQiKCXPb1FONVA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAzEgcePXT+4UM0x+l2A1s npPeAkEUFoERCySDZdeBR21E9FvRWf5FEEiHpLVgbakF9HzmUKea8qanXEo3FmJ2 I5FSMyzNZx8zohBtV86xroK/c3MWfHvPLvseMQC4FHT/is+h82oVPN2ClfdsF3Lm uFXSjfzhEojpO5ZT3M8AdQibuHD5i04k3Kuh9VJDsyGxwbR3th1L8BT/fAKFbyQq uu64PBZMMucWLdsBDjmgYw6HEChxJHO80Vaxm9oPjGIcDF2awhGWYLfg9pxUNcOm Ys+6krBgz1o7Jj1joPD3mW6TnvxM2DaH2vNYC9K/XQ+0d8+XaKIlX31DHIMlvrhq NnfRO3RjkPOAHzrnSUCy1U77iOyQ9z7Ac+OTY0EsXrASxrzJfK2aqxkeyaCacTcE 4Jj3+G6sHyjsbqzSny/We9YbtozbRINIC0Av+hRVtz/KZSPfIxW6ViGkB1b8Tmqq K57N0xI4XfzfCq3QQs7SARAv3E4lnUf02mkJyunL1zKSvpdNLB7aHwt8lOexQ/+P MDfZg6/+22ljYsIKPtp0Bzf4OZ5WqzNcZFz4EJ/qgoHfFJbHqjuxD2v+/JzAhXrO L74gZdsfNBZUq4TNoSSYi9V5yttjcdrmAkYaKsXX/oHT1Ae2As/M4/L033AYMP89 DHy4nRptkgeH7jQ/a4yhXrUCAwEAAQ== -----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 284807301888965133382975785716805443324950 . . . . . . . . [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 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-30 11:29:03 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-28 11:29:03 +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 'zajac.boston' . . . . . . . . [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 833396562195620525326300388944105430659368716836887609308317107187378045542009434165162317243813788039152983652825798936168065354577928448266605545111716391973338803245715294794297253409155072993331935349985036752077047504634768192533864577646150621926698477579727899438863881244393075708867975560073166616248040174921481132727570011938861124027680934803183110314149787898427009324015947152819057849189281907410150494019154582860505469187483910304014152769161770793474680904284309941217088303500490574220716632371896037935578853253512802387020760153860889304320198833654530611994650618323599378131872789816106219319798592760139747532211027679445623435549024145031616681754434549864932443879674859459098256470053505940953983723181017851390711331100422439082654540893493604453044067247111773595390635080624807356334667426307119245989560536512678598806991224999018598325256780490417422485970836804269123068177726501811825387838588620642809796359445240130539779397247760067714714351362126493607297281081604212334744352872207553225694314226620047438106135252432862220385268583436033496416460776646739719830694558848284530129540597428194624651090929870219728684011973151360471538172406678320032780968001277447008703428890945044173868326581 . . . . . . . . . . . . . . . . . . . . [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) 955d7fe6527750e1cbb528ea58b99cfd01d3b4f2 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (16 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zajac.boston' . . . . . . . . . . . . . . . . [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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016ce28020dc00000403004830460221008150fdf7c08c4ae67ec103ba2e494b5647fa52a28b6762d171da43fb4ecb81ab022100a3e54325c3c46ddc52b54ab390aad7d26de7643212c1d52abf15aa4540b4b110007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016ce28020d9000004030047304502207767da34e57056b606118d01d2e8397ab958d5cc98208fe0c521bc642e818466022100af92aae54a62ba1fd976eee29c360e59247cb51890d34f9dc7f07793362d0de5 . . . . [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) 000b620ae755080bb6c5fc7009cb6221d47978322a1d6f534ccb3d8fbffdea2e5202a6cc23c2e52ada52cfa35b0a7dbfd8821feedd896bcdbd262e62490d3243cdc2d20ea6c4b575f4245884aaba30aa33101ab5e8353df5775679533ace7a5600694213bbd7e11050f84e5b578a44578b651bba6b8bb510d4d3a360bce1750eaba4c41a079fcaf5f834647957ba9d6a4709d9b4042114e469e9477a254813a035341848651c12741844abd62c00913c652353662e69e25b31b3868985477a10c5f30036dec7df8bdd5b5a359477bf3a85e8337b1b77cd98c296ff7744b5e49f0ecdd068ee6b41337ef292040824dc8fa9986e523eff2159088a0973dbd4538d54