symterra.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 03:0d:eb:9c:e4:b5:aa:77:d2:ff:ea:bd:04:4c:3f:b3:98:bb 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=symterra.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:0d:eb:9c:e4:b5:aa:77:d2:ff:ea:bd:04:4c:3f:b3:98:bb
Serial Number (int): 266073711781354770986060674209686400243899
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 60:52:67:67:3a:cd:70:c4:85:86:59:ef:3e:2f:e0:b5:a5:63:17:60
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): cd:11:a9:b8:48:e7:5e:7b:1c:24:45:62:9a:cc:43:1e:b6:9d:72:f5
Fingerprint (sha256): af:7d:ce:e7:c3:95:fb:89:8a:fe:bd:47:68:1c:d1:e0:fe:8f:5d:e6:89:64:b2:f8:7a:73:c6:88:25:3d:f4:98

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

Revocation information

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

Check the revocation status for certificate symterra.co.uk

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for symterra.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

symterra.co.uk

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwoJQCSSQE3vU+NXGspuK
LdXJssGeKZLQcDLAU4KvnwBfAUCgGPEzEk/MvBTnDvjdIk2H5N1PRBeEIUQ7pccf
yaZU1NxYvwwDebSuPNNwU20oYbUsfqQrZkYTzOalIWD0spmtom0xqUyYyl1Mtafl
MvOfjquwkTb2E0rjYN4GxIsXGy/i13Mo7RTijGm8/23u7XAN9Wmg/leDEafYLex7
N7bw82Y8wNUdO6E21nYIuNaAQWa55PGDdFup0E0Xgbv0CBGISs4G+NGd99Wv70Is
KT6REZiPydBeyAUIL3R6iERIbW3SV25tXfoRBrx4ARLfHxyUGvZcfUF5LN6EfLTR
JQIDAQAB
-----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 266073711781354770986060674209686400243899
 . . . . . . . . [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 2023-06-20 18:34:21 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-18 18:34:20 +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 'symterra.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 24554490720943479124918391154839941343952744958293603980326851935961072861587871436773176902047305565486857149080675738286309917232321879105452326049267529066375365220962954302927535903439486993094406696907677261426927338436602688720083686432107331189737909445441977968422324936186037736935920532111264560718250308420785316606648084279275377467524747507054785297618552781669416100469960517219119837558078371412206747059167062004571503107626626747754439300107203379539633331237837286248788776168447564901707503920116165077630382160177683066341099637151631136788837294233696161685452412249317140765621469193899374596389
 . . . . . . . . . . . . . . . . . . . . [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)
							605267673acd70c4858659ef3e2fe0b5a5631760
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'symterra.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 (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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e00000188da4d06d3000004030046304402202e31a68b28035808bb7dc596da56c5757730ddf3a3fe708f9e992e6fd5c276cc0220746531cedd2400bde4ae196ebb14c126cab532da555a72672e083b2cc25fc34e0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000188da4d070e00000403004730450221008207b1fdd166e3a1e82d4b0952b790b7010e5f5dd5eea0f74cfe36b7ce95fc5c02201f33e4accddf09fff34793974e14a9276297642bec919cda92bce7b396b463f0
 . . . . [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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