www.lysator.se
Issued by R3
About this certificate
This digital certificate with serial number 03:17:0e:42:26:b8:f2:0d:fb:8d:61:4d:e3:6c:4e:19:ca:1f was issued on by Let's Encrypt.
With 4 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=www.lysator.se
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:17:0e:42:26:b8:f2:0d:fb:8d:61:4d:e3:6c:4e:19:ca:1fSerial Number (int): 269182304903380435838095975139071799970335
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 02:d9:dd:43:35:55:49:ab:43:44:71:b0:80:a6:5a:2c:21:6d:de:10
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 48:de:59:17:af:1e:70:2e:d5:66:d7:d9:af:9b:86:b2:e9:83:c8:89
Fingerprint (sha256): 00:20:f8:ea:30:9c:69:81:53:93:31:36:22:12:a7:68:5f:f3:82:5e:fc:2d:7c:24:49:6e:fa:6a:2c:90:06:44
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate www.lysator.se
4
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.lysator.se
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
knuth.lysator.liu.se
lysator.se
planet.lysator.liu.se
www.lysator.se
lysator.se
planet.lysator.liu.se
www.lysator.se
Other certificates including the domain name lysator.se
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.lysator.se in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGWzCCBUOgAwIBAgISAxcOQia48g37jWFN42xOGcofMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzA0MjkxNjQyNDdaFw0yMzA3MjgxNjQyNDZaMBkxFzAVBgNVBAMT Dnd3dy5seXNhdG9yLnNlMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA wlJvcZHKlmN6iG4eXYspXqq4TVNa+HS3WW28YB0wewKk+NGlhv2xsHICqXZNVW+6 uI5MoG68qc3O5J+lJYUV56NPa5jhF0rqMkLzwA9ySjcEDHmPwFE5yEj+hTexiIaZ bz3z/snGQc/7lh+O+BQfCONiRT61Q20j7+ej6gkMU8DvDneoh+0t5r7V0WCH1zcF SPBgxIVKEzj2ocywbm7txKfIiK/iKTSFPexuX7vbUuJzYQJlEXO0JzKPUtAdDyEL Oido050JL+pvXagwnubtZw65bzaK6vVzQ6ZJfnnFuNvtOUHZU6ZjfWNjRC3aXxq8 pTgZeB7GYVwiOY/ZlH3tuMZuIA+oA6n1Up7QvNyn785ivR707JvaCIRuJ3zDGXQM WxJn+WqJPm8W4Xxnw+u+1tIoQkgJUVi/GlcO0vJjieCjIPZO2VX1RI/aH/K2VdTu AjXUm15skFS/kf4LOOaq3H26iZ7I8FSBSe2XkaCkWODMN7+weOs9tWYTrEx05b8x Ig2OM0xJ3Ivj+lQYbhHIowkcO4LU4VFMHNPXAJaDh174B9NZIFN0wkVcOBeolfBC QtAwLqRst1IhC+sp6lf6aDrvP9/IElCdDL4+ppNobEpKdVxM0buLaSte02tX4Deh ly4y356deDegmlVlHUDDx9kZkVKcA3ssmH163hTuGH0CAwEAAaOCAoIwggJ+MA4G A1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYD VR0TAQH/BAIwADAdBgNVHQ4EFgQUAtndQzVVSatDRHGwgKZaLCFt3hAwHwYDVR0j BBgwFoAUFC6zF7dYVsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsG AQUFBzABhhVodHRwOi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6 Ly9yMy5pLmxlbmNyLm9yZy8wUgYDVR0RBEswSYIUa251dGgubHlzYXRvci5saXUu c2WCCmx5c2F0b3Iuc2WCFXBsYW5ldC5seXNhdG9yLmxpdS5zZYIOd3d3Lmx5c2F0 b3Iuc2UwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggr BgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5 AgQCBIH1BIHyAPAAdgC3Pvsk35xNunXyOcW6WPRsXfxCz3qfNcSeHQmBJe20mQAA AYfOHDJZAAAEAwBHMEUCIQCvfpab73whAGT7/XCv5y94TSEbBdnMOKEDqgH6t/B5 agIgJV3tTF7A3BIk1yu9N/x4mmIbHe9kYBG/K1Zt/GChwfUAdgCt9776fP8QyIud PZwePhhqtGcpXc+xDCTKhYY069yCigAAAYfOHDKGAAAEAwBHMEUCIE1oerXRAFxa EAq/l4SzIHUFJEK7USG0BcUDuDco3gL3AiEA+4QlgU5azMYYmTZIDN3JlO+8cv/Q EzDhAt6/e8fGfBAwDQYJKoZIhvcNAQELBQADggEBAJe9RvYKd2rfebOW7fWV0ybw FHsntj3h4nCF1fkbu///Q3UzIJQrpPYuQoAb8ROU9EjUVNZsZTRmJJdbwVfatHnQ MDLWaVfaICrJXJa/h3CFETJ6atQ7qi5CguSbiJIg3HyITRBMp1heYJkLwATk96LS aLBO/Hy7hmb+LHZCBk3DMcmif8JJ6hl7hMk9mstsseN6XAScVHw8Dcp8Bwf5e90+ CVRPlgLniVLtVdb8gMxDbCJaG+Vg4WJQsHB+MYD0PIey9ROSvHltRecKI3j1U5nd GkmiOgiZ77dpITf2wMpnKJhEgAvVIzoxZqWpZvsTufk+ov/fVMaGxZ+D2Dfn8jg= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAwlJvcZHKlmN6iG4eXYsp Xqq4TVNa+HS3WW28YB0wewKk+NGlhv2xsHICqXZNVW+6uI5MoG68qc3O5J+lJYUV 56NPa5jhF0rqMkLzwA9ySjcEDHmPwFE5yEj+hTexiIaZbz3z/snGQc/7lh+O+BQf CONiRT61Q20j7+ej6gkMU8DvDneoh+0t5r7V0WCH1zcFSPBgxIVKEzj2ocywbm7t xKfIiK/iKTSFPexuX7vbUuJzYQJlEXO0JzKPUtAdDyELOido050JL+pvXagwnubt Zw65bzaK6vVzQ6ZJfnnFuNvtOUHZU6ZjfWNjRC3aXxq8pTgZeB7GYVwiOY/ZlH3t uMZuIA+oA6n1Up7QvNyn785ivR707JvaCIRuJ3zDGXQMWxJn+WqJPm8W4Xxnw+u+ 1tIoQkgJUVi/GlcO0vJjieCjIPZO2VX1RI/aH/K2VdTuAjXUm15skFS/kf4LOOaq 3H26iZ7I8FSBSe2XkaCkWODMN7+weOs9tWYTrEx05b8xIg2OM0xJ3Ivj+lQYbhHI owkcO4LU4VFMHNPXAJaDh174B9NZIFN0wkVcOBeolfBCQtAwLqRst1IhC+sp6lf6 aDrvP9/IElCdDL4+ppNobEpKdVxM0buLaSte02tX4Dehly4y356deDegmlVlHUDD x9kZkVKcA3ssmH163hTuGH0CAwEAAQ== -----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 269182304903380435838095975139071799970335 . . . . . . . . [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 2023-04-29 16:42:47 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-28 16:42:46 +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 'www.lysator.se' . . . . . . . . [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 792764647600192240299523726960637272914244149503883187955267139347159353695836494036423918786500347676682415697599892416021974832573390443971628002772188729228052870376716235026356091258195325948459015027038504609281917362482640379307025938034473970768821100128173739300239456681722078473956589998832427721956338384083440645873557707912419938960918704851968873759950064345541600736414383726957451365225574512720442266844052545484120429101445794504680759889309728463735965970987618562196395252718548640572312038334648103635385456445123895358141655196730738903255538492067001409081326875927891127893444642547778737242055899767062412741030694161826730969513406164876618776491722276840740480316392548191669946322467192681844635144691298149734612896839986816214533969948412161740333365434506494631643391881310482551090483477304482141036735879872500833493442949303145480856484672957429842136148369359830275280518154177018124420938153590360016400621619960987683782343471912545411742094387816405695311946328997599246808267981840249142393195698744773697096488898223048355323615476688614914413247841393381079956639020456048257054458378251567639562251098239158056107768738605974011802658085086313254757635599528433217048597963010404309781059709 . . . . . . . . . . . . . . . . . . . . [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) 02d9dd43355549ab434471b080a65a2c216dde10 . . . . . . . . . . . . . . . . [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 (75 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'knuth.lysator.liu.se' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'lysator.se' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'planet.lysator.liu.se' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.lysator.se' . . . . . . . . . . . . . . . . [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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000187ce1c32590000040300473045022100af7e969bef7c210064fbfd70afe72f784d211b05d9cc38a103aa01fab7f0796a0220255ded4c5ec0dc1224d72bbd37fc789a621b1def646011bf2b566dfc60a1c1f5007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000187ce1c3286000004030047304502204d687ab5d1005c5a100abf9784b32075052442bb5121b405c503b83728de02f7022100fb8425814e5accc6189936480cddc994efbc72ffd01330e102debf7bc7c67c10 . . . . [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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