old-releases.ubuntu.com

Issued by R3

About this certificate

This digital certificate with serial number 04:39:72:49:bd:2d:ab:bc:9b:b0:91:64:d6:af:b2:e3:06:d6 was issued on by Let's Encrypt.

This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=old-releases.ubuntu.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:39:72:49:bd:2d:ab:bc:9b:b0:91:64:d6:af:b2:e3:06:d6
Serial Number (int): 367997153507718464809100918776073350743766
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f6:6d:c1:9d:20:ee:5b:17:d6:f5:dc:c0:88:59:70:ec:fa:c9:48:f4
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 40:17:18:64:77:d3:3d:ac:89:e2:fa:7b:82:a0:a9:9e:c6:29:a1:c9
Fingerprint (sha256): 00:29:94:ec:c3:9f:74:2f:23:d2:8f:fd:68:d9:a6:ea:3d:24:05:0c:dd:35:21:86:eb:73:52:d1:c3:08:1e:9c

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate old-releases.ubuntu.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for old-releases.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

old-releases.ubuntu.com

Other certificates including the domain name ubuntu.com

(limited to 100 certificates)
changelogs.ubuntu.com
old-releases.ubuntu.com
usshop.ubuntu.com
lists.ubuntu.com
facebook-apps.ubuntu.com
people.ubuntu.com
buy.ubuntu.com
connectivity-check.ubuntu.com
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
*.ubuntu.com
phone.docs.ubuntu.com
cn.ubuntu.com
assertions.ubuntu.com
docs.ubuntu.com
redirect.ubuntuforums.org
code-review.phablet.ubuntu.com
ask.ubuntu.com
discourse.ubuntu.com
upload.apps.staging.ubuntu.com
design.staging.ubuntu.com
keyserver.ubuntu.com
insights.ubuntu.com
ubuntu.grad.hr
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
fr.archive.ubuntu.com
qa.cube.ubuntu.com
releases.ubuntu.com
docs.ubuntu.com
bileto.ubuntu.com
keyserver.ubuntu.com
errors.staging.ubuntu.com
login-lp.staging.ubuntu.com
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
summit.ubuntu.com
api.snapcraft.io
phone.docs.ubuntu.com
geoname-lookup.ubuntu.com
hockeypuck.ubuntu.com
start.ubuntu.com
try.cloud.staging.ubuntu.com

Certificate

The complete raw certificate details for old-releases.ubuntu.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA65fAtvg2vlmKeSuVk9Gu
FzQCOCS7tAC6jZpEua6uSa5l6JNrvnhlkhUNW5QJrkHBs54fy8TQXRXGYxrMeDfE
wuZW2ylzmcAOhEVUhKWFBuOegWv1YipYqMggrJW+T73rRLnW5LqdFN4Z3b4v7bs1
PRn1EFpoAYH1aMw3UJg2nBT9saMrPs5VTmgYfzqCmicsijNjxYwdb4fa/kqjFm3Y
Z6F7KiKgJgs2P9DG6f8D8LJ2oXhNf3iJXKAJ1jZQEQVq2kwJZE940iN/Z54Glg25
wicj9P9pLbDc/6SQMbPuJX7H7WTm7U1G1/PYnGvW+WTKcy6t79rVzHI7g7aTxNnE
PQIDAQAB
-----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 367997153507718464809100918776073350743766
 . . . . . . . . [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 2024-05-11 23:57:02 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-08-09 23:57:01 +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 'old-releases.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 29740833757737074625013366927071391697318280989879035916032746416701352967100637979707895353966484681006692392266534646458582236901781689995843398867620509174593723131961065181713619987838148219049417423561071657422281430250869757713291938056406669421038960229322968879719557042445379636223174238527585973074248370985166748540753505392154269113913258866985722164685578454448020198364530257089211732971316156870250859827937595468931354003434102074445541767533425966217507367908993469631788819013779364270600858198073727819838572587256973984330347403146186929311426099440864832094422313286138871992271812759019125851197
 . . . . . . . . . . . . . . . . . . . . [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)
							f66dc19d20ee5b17d6f5dcc0885970ecfac948f4
 . . . . . . . . . . . . . . . . [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 (27 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'old-releases.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018f6a4d9c61000004030047304502210086130aa0b754f142a54d04cc3225ec8f0b394b883feea3cf0d69df63190a64720220615843812526c6c7b036a2ea256b683656036db0b22fe4b5ae639ef5e5e8dcb1007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018f6a4d9c7000000403004830460221008249ba48a8c573dbde3cacb73622ace98b0d59b0aa62dee01528b3741fb6c1120221008f6df8083aa891febb8091a7d147b7cbee1344397afcf0402a9cdd085bab5b30
 . . . . [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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