DV SSL/TLS Certificate for fellside.co.uk

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the fellside.co.uk DV SSL/TLS Certificate

This certificate with serial number 05:c7:33:2d:29:9c:bf:0b:27:82:33:51:11:e6:72:64:bb:30 for fellside.co.uk was issued on by Let's Encrypt.

With 2 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for fellside.co.uk provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 05:c7:33:2d:29:9c:bf:0b:27:82:33:51:11:e6:72:64:bb:30
Serial Number (int): 503345645801209164462670106457420723436336
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 79:5b:f1:6c:80:15:ec:cf:23:c9:cb:e4:23:59:ba:79:8c:1d:49:79
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): 38:4c:94:02:4f:5a:0e:cf:0c:4d:68:56:b0:b9:a5:d8:65:f0:9d:91
Fingerprint (SHA-256): 09:24:cc:c2:f2:46:a7:9f:c4:55:c2:dd:d6:ba:85:70:4a:3b:9b:4a:85:e1:80:cb:59:43:ca:6c:e9:84:ac:91

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/49.crl

Check the revocation status for certificate fellside.co.uk
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for fellside.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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for fellside.co.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtZDcNC7jN/2vZPYtsP2x
sXA36yNt/KQxHhKJAv+9Giijiw6RMRzgWgUFW/WOVrfmt/smxazadW7D+6z9nP4E
OnLBOEJ9r/FycVts9QtHCEkfTIKKoIT743hQF+SgX+gFvkd7V1J3VUq1G7bhQ99J
CAdzr0zpSzP/xWGjIFFNwSq+KsglrkfPXxCuaLaXxQDKi5U47Lfp2W5JVQrT5N2a
sKBmyTlHyUJoIdRDXBDT7ge24swmBgl+vH956TqL9Xys9mC1Sl/CUgpxnvT7Ltw0
iIGDPTWeEWlR1bDuLBX73IPuwOkHMmMnZUtRfey5BV9uEBXZSbjWFWaGtR3PY04S
3QIDAQAB
-----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 503345645801209164462670106457420723436336
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-05-24 17:46:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-08-22 17:46:49 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'fellside.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
 . . . . . . . . . . . . . . . . [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 22920566411653148486659820235373980526868389868539955485700339576728002948745554420704648904740667705021652653148210946909939026073730744441184102468418240053643214687646855488566898473472556465247977757378923468348717197378973879717351788021633109827778238019165710383763647514185961675900310125737228159071180633116529903662036892790418924608959919710856653590230026933093253849268715594654844632922392943904593933918984334937236958080432183757471354443327637763865998748737045225087353206610173274428005567807798889281452473427516125063495579521253336366304878133050024713141322288604378528283749269083308478567133
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							795bf16c8015eccf23c9cbe42359ba798c1d4979
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (38 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'fellside.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.fellside.co.uk'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.c.lencr.org/49.crl'
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700ed3c4bd6e806c2a4a20057dbcb24e23801df512fedc486c5700f20ddb73e3fe000000197039d29020000040300483046022100cb78dc040084ce825d5cb8357e23739d21fe9f75bd5113d9dec000849bfdd73a022100af41b3a5f98b0ed4ee34e663ab665326599d6edf76f11de5a42612a1be60b542007700ccfb0f6a85710965fe959b53cee9b27c22e9855c0d978db6a97e54c0fe4c0db000000197039d31140000040300483046022100c4bfcaf43b48796517c80418065b80657b2276d4af981643b0b0617df27276df022100ed0709af792cec3ce6e6fc26c3b7d5565015812b5d5e27350dfc1c20d0428314
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		002b8476bc53e5133a598ffe9300f90a9e98d7455a18b1ff01f8a7b5d2b49cc325e421cc7df62374968266f3d42876a8b6c5bc564a091cd30933e052c7094d4678110c77831510057ff72e688cb3dae81fd2de09aff09895eb31b111eab6306ec5f0db0ba0586e83ce37b1235202c574cd06352102de54dd1b9175a8dccb57ff3869bd4a786cd8541a8bb3230e49974766c4b8b481ae7217aaa82b726ec58d9b9bdfce270e6c13daa3d84c62f2d200a68bd8ffa859d8f4a684ffbaf08a52abcc50e19219a1177f3c7ec5c4a50b9ca9b4d0ac5cca1ab5daaa170b26359ecb67cc96fe57ae1bddb2f5418901619e99a1b296a26790e58ffcc2f5cb27ecec80d8e413