ucb.co.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:16:35:51:e0:19:98:ef:8a:d6:90:64:0d:dd:d7:a8:18:22 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=ucb.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:16:35:51:e0:19:98:ef:8a:d6:90:64:0d:dd:d7:a8:18:22
Serial Number (int): 268893944072651314589606850690406693738530
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c8:df:53:01:ac:6c:e3:32:89:af:7d:3b:65:57:d7:09:fe:54:73:d4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 31:6c:ba:5c:5d:98:f5:88:0a:df:98:8c:ff:7a:18:85:c3:7f:eb:06
Fingerprint (sha256): b1:f2:08:13:a8:04:10:0f:0b:fd:e2:93:c8:af:fd:5d:66:a2:d2:3e:0b:e5:54:95:64:d6:92:1e:46:9f:99:bf

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate ucb.co.uk

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ucb.co.uk

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

ucb.co.uk

Other certificates including the domain name ucb.co.uk

(limited to 100 certificates)
*.ucb.co.uk
ucb.co.uk
appeal.ucb.co.uk
servu.ucb.co.uk
*.ucb.co.uk
*.ucb.co.uk
ex.ucb.co.uk
podcast.ucb.co.uk
ucb.co.uk
servu.ucb.co.uk
ex.ucb.co.uk
ex.ucb.co.uk
servu.ucb.co.uk
servu.ucb.co.uk
ucb.co.uk
ucb.co.uk
ucb.co.uk
ucb.co.uk
*.ucb.co.uk
ucb.co.uk
*.ucb.co.uk
ex.ucb.co.uk
podcast.ucb.co.uk
vmicollab.ucb.co.uk
ucb.co.uk
podcast.ucb.co.uk
ucb.co.uk
podcast.ucb.co.uk
podcast.ucb.co.uk
ex.ucb.co.uk
rd.ucb.co.uk
ex.ucb.co.uk
ex.ucb.co.uk
rd.ucb.co.uk
ucb.co.uk
ucb.co.uk
ucb.co.uk
podcast.ucb.co.uk
servu.ucb.co.uk
ex.ucb.co.uk
ex.ucb.co.uk
rd.ucb.co.uk
podcast.ucb.co.uk
vmicollab.ucb.co.uk
*.ucb.co.uk
ucb.co.uk
ucb.co.uk
ucb.co.uk
servu.ucb.co.uk

Certificate

The complete raw certificate details for ucb.co.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxht0NbVPN4sqSnKUr0jQ
u905Ru3+Dy5NaoRO5qNlhjCrMBrXmxqdiNHImTGSOuLBul2Mj2KEIJFenhiFM6pR
t1oH+TBwWxLl98aSZj0FVuiP88bTejhOlIb1HIbTkkPGGrENDagu470/nzwYzVnp
cOZWUlweg0P5SIoByw1/UPgH5fAzKrV6c/7wzVIhsho7tqONq4Rjnw8NRTQ4cvRV
7GgnXxRvwMdWd0KxHruC7D5BFD17xnKtcq4TkG7wnL+9gIaW0IaLGT+3knLx75VP
v0UPVYaCSrJc1iHLQDmLAyPUWocCfZg+rVLmqrgPLP1TZUXW1KCHwuBrxjI91LI4
AwIDAQAB
-----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 268893944072651314589606850690406693738530
 . . . . . . . . [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 2019-10-27 11:32:03 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-25 11:32:03 +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 'ucb.co.uk'
 . . . . . . . . [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 25008722427893585756000108200462875582628047022609207793909685881428606101373285565253802270579056628791079964928647957811480231443835313371970919443795446718892434821966454458901674581687521868943537242548113138854062115889650086360277272380762487669555502829996938846090191477397446953817433341829136350590530672242867331953651091050488282590483854034543421500831868365697196519978922749688576893404286202942019583717881391628330409601346424508150269190446594069881349621559777908887641080630568837789307044058595240171691145775102331268666142882080802432636142924116473153925308331420963207951006738709880662800387
 . . . . . . . . . . . . . . . . . . . . [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)
							c8df5301ac6ce33289af7d3b6557d709fe5473d4
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ucb.co.uk'
 . . . . . . . . . . . . . . . . [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)
							00f100770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e0d33b86f0000040300483046022100d5ef211db213560d21ed8e82169ba870e80301e993f842e62807eb8e8c161326022100e975a9bffdca861f60f8962b18fad43a3f705b565f060c386717eee85a2c97590076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016e0d33b90f000004030047304502210093ade474960fc788f6c2181963d41662f7e63e5c25b4bf45c0a1d85e3a49cee902205d7fa9c14aec3d813eea9cbff2a609921043a1b16060489586d666eaa69c8c7f
 . . . . [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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