vt.pressbooks.pub
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:58:09:7e:40:0c:1a:cd:46:38:b3:e3:5d:63:18:9b:1c:48 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=vt.pressbooks.pub
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:58:09:7e:40:0c:1a:cd:46:38:b3:e3:5d:63:18:9b:1c:48Serial Number (int): 291294324664722811711324081998023460854856
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: bd:47:a5:d9:14:bc:af:51:9c:7e:11:b4:5f:76:28:83:36:8c:de:b9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 56:6f:b7:00:cd:58:ad:14:9a:1c:9b:97:28:24:b9:8f:76:22:a2:c4
Fingerprint (sha256): 38:93:47:14:ef:96:88:db:f2:3d:f0:a8:2f:36:17:f6:6b:7e:91:e9:96:80:5d:ac:87:6a:cc:2f:57:aa:2d:35
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate vt.pressbooks.pub
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for vt.pressbooks.pub
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
vt.pressbooks.pub
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campusmanitoba.pressbooks.pub
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open.oregonstate.education
northwestern.pressbooks.pub
milnepublishing.pressbooks.pub
pressbooks.claremont.edu
uflorida.pressbooks.pub
colostate.pressbooks.pub
openoregonstate.pressbooks.pub
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senecacollege.pressbooks.pub
caulau.pressbooks.pub
uiowa.pressbooks.pub
montgomerycollege.pressbooks.pub
cuny.pressbooks.pub
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fortlewis.pressbooks.pub
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open.online.uga.edu
ohiostate.pressbooks.pub
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Certificate
The complete raw certificate details for vt.pressbooks.pub in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGWTCCBUGgAwIBAgISA1gJfkAMGs1GOLPjXWMYmxxIMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMjcyMTIzNTFaFw0y MDA0MjYyMTIzNTFaMBwxGjAYBgNVBAMTEXZ0LnByZXNzYm9va3MucHViMIICIjAN BgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0q2lN76o0coQwd94YQsQ23Y83H9q IlGofWgAtryzT4wGyLyhD9f3kA5DUx/v/eSt7lhqaLQ9aK6paT1SlquwFcoOVpfN 8/7VQeQZg+cuQO7HM0PLFzdBN4pVJT552gqgACbA+6rOa4cwNVH+DW70EWvdkq/D ngsci72RE4Cq1cRMndsb8lgx0Xb2Yg8lbz0TfY8AXeOShF0Ri9PML3hjUOd/r9g6 ziLsq0K5OGRlTZ2dZyRUknoSqH8yJ3eyo+Nty80wXEOEwC/NfOM8j2Y/XfoK/Y1R 6BOH/lLHddLRw6kkMfWWYHitLJOfOwegEzduN//7L4MYrr/N9DgkLB9JslMazCI6 CaqAMcUVW/+wwAFfNV1pz0nRO9zwC8W0z+UC+I+ZqhDeDOB9/u5rrLN2yVU+qNQs +muSr9XKLV0diq9hXZBq47lD3+g3VVsgnJclyWc1Nr7YbgRpycJIsH0wFso3cUzt iTswlvl09m5drlaQo3cjNGuNL6/BRKQFiKBYdUktFdjYJtQmwwts9dgpmj3VWRjC SLOMEg15rXujLfFPH+xUw9Bzd3SMj5/uSaTRo9wktDV3UtTaswPj+Yo69vB0s9cb 0xwuVyboGRc1aTsWTs/NzvHWSK2ZOO7eJIpr7/OWxKuJYSdwPEnv3XJKCKe+P6Jd KmdJYvQzpMrCJy8CAwEAAaOCAmUwggJhMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUE FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU vUel2RS8r1GcfhG0X3YogzaM3rkwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl 7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5p bnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5p bnQteDMubGV0c2VuY3J5cHQub3JnLzAcBgNVHREEFTATghF2dC5wcmVzc2Jvb2tz LnB1YjBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsG AQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkC BAIEgfQEgfEA7wB1APCVpFnyANGCQBAtL5OIjq1L/h1H45nh0DSmsKiqjrJzAAAB b+kal7wAAAQDAEYwRAIgUBZl7KSgZEQs3iXdhqlJ9JJz67CClrnMVakeLl5Ws74C IEykvHekhbTbOloj97Vu4R6sIVpMOSi6k3Bd9MZwTTsjAHYAB7dcG+V9aP/xsMYd IxXHuuZXfFeUt2ruvGE6GmnTohwAAAFv6RqYBgAABAMARzBFAiEAkt3KCxee8R9L UTW8KqRxpuOnlrdQoo4Mdi8OduHxJ8cCIBhyMpCpY5VIU6Vdv/7MfcJpmeDEhJeK xmV/50jSTj0KMA0GCSqGSIb3DQEBCwUAA4IBAQCUjVXBFjENZ++Fy0AktGeCT/Mr d+ix1uMAKkVhtlrico+H43O5lb/nCleZTFlg3o/Sh7J0V9UP77WRCEbXdwWFjuxn HSiV9k4eM2usTCQCVO5yCQQIKXkvH+xzH5Nuwwf/94BN2Xw/SuxhfLukN008IdMY +VBROxcpcTdWTqgrKafT/+aUe5U8Tgk0tKmBY7tuv5dLiNT3AwLFBzFxj7oHQMqs yiGEt9iCKXZqsqBn0pocrd6VZNZNud2nhQv7+C8L85BvC3SGc2N3SDjF/EjZwWFk nKebWtjrGQ0hz60fOX9ZtYdqRDl8dJsnczHNLcsZWvBr3xlDa7/VDdmpSspY -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0q2lN76o0coQwd94YQsQ 23Y83H9qIlGofWgAtryzT4wGyLyhD9f3kA5DUx/v/eSt7lhqaLQ9aK6paT1Slquw FcoOVpfN8/7VQeQZg+cuQO7HM0PLFzdBN4pVJT552gqgACbA+6rOa4cwNVH+DW70 EWvdkq/Dngsci72RE4Cq1cRMndsb8lgx0Xb2Yg8lbz0TfY8AXeOShF0Ri9PML3hj UOd/r9g6ziLsq0K5OGRlTZ2dZyRUknoSqH8yJ3eyo+Nty80wXEOEwC/NfOM8j2Y/ XfoK/Y1R6BOH/lLHddLRw6kkMfWWYHitLJOfOwegEzduN//7L4MYrr/N9DgkLB9J slMazCI6CaqAMcUVW/+wwAFfNV1pz0nRO9zwC8W0z+UC+I+ZqhDeDOB9/u5rrLN2 yVU+qNQs+muSr9XKLV0diq9hXZBq47lD3+g3VVsgnJclyWc1Nr7YbgRpycJIsH0w Fso3cUztiTswlvl09m5drlaQo3cjNGuNL6/BRKQFiKBYdUktFdjYJtQmwwts9dgp mj3VWRjCSLOMEg15rXujLfFPH+xUw9Bzd3SMj5/uSaTRo9wktDV3UtTaswPj+Yo6 9vB0s9cb0xwuVyboGRc1aTsWTs/NzvHWSK2ZOO7eJIpr7/OWxKuJYSdwPEnv3XJK CKe+P6JdKmdJYvQzpMrCJy8CAwEAAQ== -----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 291294324664722811711324081998023460854856 . . . . . . . . [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 2020-01-27 21:23:51 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-26 21:23:51 +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 'vt.pressbooks.pub' . . . . . . . . [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 859492486127951663091293350056021161109394202522002729493913342063343386497643672904231033228666474466805146978486799238158036736060960096471703304078865614059542150445669347402118124239483274333636319710584417005868946170523594936147171007568174036201809645792418866005771915734597016403612036719361859434383784093199294499681553758997601777106020293419627043927517168646422937615089720604524203614807152316705048830440123777245573726352054182642130993957843183437154269478079084932110027861418797400651142629887588351790234565658017999306559182743219587066183287384987631147754726452737793192675606486909245159857405904119766215941558883857394868047813145102287410273950310794138613274105327995133232943271278392447918552680510872632053500034419501948187029318116786184915036865447142995920935933314621966444046223767647845921732214829656691636165231439732068591945342071324963321265774359747607472905713830557552250229381309817764457277222164265090704845829295002569882211450999126211595904007629166743540460077836534180388778443172878633575872863952688564839854285172402448969239340383160058554048202238557422623379466441501538885730229002826757109687363320855241157750566006730865677440329849413312195676535963723232635370219311 . . . . . . . . . . . . . . . . . . . . [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) bd47a5d914bcaf519c7e11b45f762883368cdeb9 . . . . . . . . . . . . . . . . [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 (21 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vt.pressbooks.pub' . . . . . . . . . . . . . . . . [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) 00ef007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016fe91a97bc00000403004630440220501665eca4a064442cde25dd86a949f49273ebb08296b9cc55a91e2e5e56b3be02204ca4bc77a485b4db3a5a23f7b56ee11eac215a4c3928ba93705df4c6704d3b2300760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016fe91a9806000004030047304502210092ddca0b179ef11f4b5135bc2aa471a6e3a796b750a28e0c762f0e76e1f127c7022018723290a963954853a55dbffecc7dc26999e0c484978ac6657fe748d24e3d0a . . . . [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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