docs.ubuntu.com
Issued by R3
About this certificate
This digital certificate with serial number 03:37:62:d0:ef:39:0e:37:ae:fe:9f:7d:75:0f:90:03:19:47 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=docs.ubuntu.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:37:62:d0:ef:39:0e:37:ae:fe:9f:7d:75:0f:90:03:19:47Serial Number (int): 280183737169282153073557219037855321626951
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: d0:64:bf:e5:c5:45:cc:7e:97:87:9a:a2:47:31:54:82:67:37:52:7b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 00:96:c7:f4:74:dc:49:a3:87:55:8c:40:72:89:c5:3f:f1:24:87:8e
Fingerprint (sha256): 02:d8:58:71:24:58:53:d6:60:ba:7a:ae:13:e6:dc:c4:4f:2e:bc:b0:0f:f8:ed:2b:4a:10:21:f3:4a:eb:fc:14
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate docs.ubuntu.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for docs.ubuntu.com
Public Key Algorithm
RSA
Key Size
2048
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
docs.ubuntu.com
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support.one.ubuntu.com
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brainstorm.ubuntu.com
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errors.ubuntu.com
patches.ubuntu.com
discourse.ubuntu.com
daisy.ubuntu.com
support.one.ubuntu.com
certification.staging.ubuntu.com
summit.ubuntu.com
api.snapcraft.io
phone.docs.ubuntu.com
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hockeypuck.ubuntu.com
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try.cloud.staging.ubuntu.com
old-releases.ubuntu.com
usshop.ubuntu.com
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search.apps.staging.ubuntu.com
maas.ubuntu.com
tour.ubuntu.com
myapps.developer.ubuntu.com
api.staging.snapcraft.io
manager.assets.staging.ubuntu.com
auth.esm.staging.ubuntu.com
design.ubuntu.com
jp.ubuntu.com
start.ubuntu.com
jp.staging.ubuntu.com
staging.ubuntu.com
docs.ubuntu.com
fridge.ubuntu.com
hr.archive.ubuntu.com
upload.apps.staging.ubuntu.com
assets.ubuntu.com
daisy.staging.ubuntu.com
webstats.ubuntu.com
juju.ubuntu.com
old-releases.ubuntu.com
certification.staging.ubuntu.com
assets.ubuntu.com
daisy.ubuntu.com
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phone.docs.ubuntu.com
cn.ubuntu.com
assertions.ubuntu.com
docs.ubuntu.com
redirect.ubuntuforums.org
code-review.phablet.ubuntu.com
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discourse.ubuntu.com
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insights.ubuntu.com
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developer.ubuntu.com
cloud-images.ubuntu.com
phone.docs.ubuntu.com
lists.ubuntu.com
jp.ubuntu.com
help.ubuntu.com
buy.ubuntu.com
merges.ubuntu.com
support.one.ubuntu.com
people.ubuntu.com
assets.ubuntu.com
*.staging.ubuntu.com
brainstorm.ubuntu.com
font.ubuntu.com
assets.ubuntu.com
pages.ubuntu.com
system-image.ubuntu.com
apps.ubuntu.com
ubuntu.com
login.staging.ubuntu.com
cdimage.ubuntu.com
certification.ubuntu.com
people.ubuntu.com
assertions.staging.ubuntu.com
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releases.ubuntu.com
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keyserver.ubuntu.com
brainstorm.ubuntu.com
kernel.ubuntu.com
hyperscale.ubuntu.com
fridge.ubuntu.com
buy.ubuntu.com
odm.ubuntu.com
start.ubuntu.com
assertions.ubuntu.com
errors.ubuntu.com
patches.ubuntu.com
discourse.ubuntu.com
daisy.ubuntu.com
support.one.ubuntu.com
certification.staging.ubuntu.com
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Certificate
The complete raw certificate details for docs.ubuntu.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFJDCCBAygAwIBAgISAzdi0O85Djeu/p99dQ+QAxlHMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzAzMTMwMzQ1MzZaFw0yMzA2MTEwMzQ1MzVaMBoxGDAWBgNVBAMT D2RvY3MudWJ1bnR1LmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB AMEpnAbHTgWjT+fn1To/5H1XBKPaFO5mNfV1j410HsuQsElMYj6V7LDAxedKIKfG 5jDo1Mdx72UlUHssxbauZ9q/EUNx5novj18uLC/lTCiYq+zcU5LbchBNPIP0xkyx 1z7Ps02cwrB123/y3K2+Q3JD3agGD7W1/1yUiREJ7eWuS+fhTOyCAKPF5RVa6ra3 045IsnKUnQLDrCGVXfrBrySUFwYeIRxxR0aEyFKBk4kEeMTh/rzsVfk1SYejrSYg UaQCXWC4VHqqDit9/Pwzzpftf42gg3riNyVzAMY9y/L57hyCK1ZrqRUNJcMD7mrC zQ/B8DJBB6RXqlW5E/ih/r8CAwEAAaOCAkowggJGMA4GA1UdDwEB/wQEAwIFoDAd BgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNV HQ4EFgQU0GS/5cVFzH6Xh5qiRzFUgmc3UnswHwYDVR0jBBgwFoAUFC6zF7dYVsuu UAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8v cjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9y Zy8wGgYDVR0RBBMwEYIPZG9jcy51YnVudHUuY29tMEwGA1UdIARFMEMwCAYGZ4EM AQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0 c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHcAtz77JN+cTbp1 8jnFulj0bF38Qs96nzXEnh0JgSXttJkAAAGG2UnGBgAABAMASDBGAiEApH1//i4j +BlUULFY51REMMYoQLa0ZWnMtzuAc4omQ8cCIQDwcTk6o9bcrRyDgO7bV4wsHS8f 9jsSmKgN1LqghxPXaAB1AHoyjFTYty22IOo44FIe6YQWcDIThU070ivBOlejUutS AAABhtlJxg8AAAQDAEYwRAIgGREWOIlECjnTj2S7/NLsu07g73vYvod7egSnWLBv 1FYCICaga7zAVHmsICT6Tabu8po7LOsfTxO1EuB4I6evzp3GMA0GCSqGSIb3DQEB CwUAA4IBAQB/XNgLEE8ukegr/egr/ssynH9eqBRbEh2BNrjfXrn9OoBznVXOHvy4 maPC3eRUO8Mn6cl0NLOt0GLzUW7ImwS/KP1gzqTEEqurE0/SHFcYO7uHk2bZD/HE BYg5rUf1ww0yyguSQWYbCLeeFD5xpb6AdVrG/4DB/D7Tz81E/uoII5MjbgIIsgWW cDChJG9qnPHJGBGh4q2qwKl438JW3tQ70X+UarpuGfjJyabzwJotcTMBcgpQA7z8 PYSJV+yBYZwYQHZo4WvSjeTvx3CJT5px7Ek3bhoIboYXf4T62bKlm6pXwXQto71U TOijLEv4C33kzXSt91sjbhWucsS25+Pb -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwSmcBsdOBaNP5+fVOj/k fVcEo9oU7mY19XWPjXQey5CwSUxiPpXssMDF50ogp8bmMOjUx3HvZSVQeyzFtq5n 2r8RQ3Hmei+PXy4sL+VMKJir7NxTkttyEE08g/TGTLHXPs+zTZzCsHXbf/Lcrb5D ckPdqAYPtbX/XJSJEQnt5a5L5+FM7IIAo8XlFVrqtrfTjkiycpSdAsOsIZVd+sGv JJQXBh4hHHFHRoTIUoGTiQR4xOH+vOxV+TVJh6OtJiBRpAJdYLhUeqoOK338/DPO l+1/jaCDeuI3JXMAxj3L8vnuHIIrVmupFQ0lwwPuasLND8HwMkEHpFeqVbkT+KH+ vwIDAQAB -----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 280183737169282153073557219037855321626951 . . . . . . . . [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 2023-03-13 03:45:36 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-06-11 03:45:35 +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 'docs.ubuntu.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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 24384511256995430536321657314852864435069061721657616662979421755579364260239146834310632888906097352904416153029029411554208011636875051519270651575181108329150266575667091828957254919056823856823682594876272916084865723779164192328720713711583257834078492489186852394726692527708137895545212032395394413432638405682340633996770355165399231721329562456386215023302505998363609423162906020650391748194015747987398143179218717251622257064422428854747299923925468621193975502869524188323116184026380800523751428826217877633507211395030718916699949211066560997133788328432343383385318697635060229441265670673235250904767 . . . . . . . . . . . . . . . . . . . . [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) d064bfe5c545cc7e97879aa2473154826737527b . . . . . . . . . . . . . . . . [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 (19 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'docs.ubuntu.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000186d949c6060000040300483046022100a47d7ffe2e23f8195450b158e7544430c62840b6b46569ccb73b80738a2643c7022100f071393aa3d6dcad1c8380eedb578c2c1d2f1ff63b1298a80dd4baa08713d7680075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000186d949c60f000004030046304402201911163889440a39d38f64bbfcd2ecbb4ee0ef7bd8be877b7a04a758b06fd456022026a06bbcc05479ac2024fa4da6eef29a3b2ceb1f4f13b512e07823a7afce9dc6 . . . . [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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