www.fluforum.co.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:d2:91:a0:87:9d:e7:32:03:67:72:31:37:99:22:53:09:8f was issued on by Let's Encrypt.

With 3 subject alternative names this certificate can be used to secure multiple fqdn's. 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=www.fluforum.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:d2:91:a0:87:9d:e7:32:03:67:72:31:37:99:22:53:09:8f
Serial Number (int): 332989726426199665148522045156148166986127
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ec:af:85:b7:09:68:a7:86:6d:7a:a6:20:6a:c2:03:ed:4c:bb:5b:f0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 8d:95:de:b0:55:6e:b0:84:1d:e3:87:f5:28:de:46:51:67:6c:c3:05
Fingerprint (sha256): 1b:fb:de:c5:65:07:2e:92:60:e0:47:37:9a:fe:c6:4b:e4:30:10:2a:3a:e1:67:ee:5b:ce:2b:54:d5:ca:33:6d

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 www.fluforum.co.uk

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.fluforum.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

flu-forum.pentangle.co.uk
fluforum.co.uk
www.fluforum.co.uk

Other certificates including the domain name fluforum.co.uk

(limited to 100 certificates)
www.fluforum.co.uk
www.fluforum.co.uk
www.fluforum.co.uk
fluforum.co.uk
www.fluforum.co.uk
www.fluforum.co.uk
www.fluforum.co.uk

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2xPQTlIPAeTui5voHh02
TmaK/hxZeACH1AmZd0JPmzEqGwqNOd7VgSVfJRma7FluT2g9cayubbR0WzDS500O
V+fXksnCoJsQQy/noGVsGEC5wETtV5Eo5li8oTRNkQPhb32lMLE/HEI6G/jX+xai
x5w/dhAIiyYnuL/mQ/taxvzvrz+vqR4HLmGp6u16Txqg/TusrdxbS5lH6GoQAhlI
4yxYbPCXKS7bh+2hjdZa2kcAKxa2O0wf8Cia+PK9GT4oLQezUoLyV5WZGUf4K8MA
tsBLr5KhU8TEULjfxceGWKGGNfJRs+ft4X65/EP3sbYNcVUhuly+qJY0bYFr+vfQ
FQIDAQAB
-----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 332989726426199665148522045156148166986127
 . . . . . . . . [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 2019-11-18 12:43:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-16 12:43:18 +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 'www.fluforum.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 27655959284760537860149071206020117833895564470297970465959529844958240556251297148261795162705713040887109616974717092359030435262234862305962709390696374615527426718857643125524150284338941000761182458898113799202710139220940096543484175399197062414652505222879488662769941150429091407922551707351691216412081792152989083989608896054101208103757526359429428433988063282187465278114323183971425098124715915587627760379519429545090836218374287069212079564834112259109771195042809394560197124214241651155994646414199638765997507031544671615275119710579162808378431692381309461282202911051910797262753188461013590593557
 . . . . . . . . . . . . . . . . . . . . [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)
							ecaf85b70968a7866d7aa6206ac203ed4cbb5bf0
 . . . . . . . . . . . . . . . . [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 (65 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'flu-forum.pentangle.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'fluforum.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.fluforum.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e7ec0db460000040300473045022100d225f07edc4063ee52cccddebe7b64df09b388388e16d485d4f01d7d5f989a4e022010437ec1c460572cd713a21a3047ee8274a96983d909cbc77685995d7fd9f68d0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016e7ec0dcc20000040300463044022060f289d3134c1b8e13ca73bd31dbce5acb5bdd808aa1c7750488556648209f4a02203e14233b192826ca638ab4c478376bc9e54d989f4326468e49d8863d8b21a2c4
 . . . . [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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