DV SSL/TLS Certificate for webmail.ncfwi.org.uk

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the webmail.ncfwi.org.uk DV SSL/TLS Certificate

This certificate with serial number 05:f1:96:c3:bf:a8:e6:33:ee:ec:a6:aa:d9:25:a2:0c:75:22 for webmail.ncfwi.org.uk was issued on by Let's Encrypt.

With 8 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 webmail.ncfwi.org.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:f1:96:c3:bf:a8:e6:33:ee:ec:a6:aa:d9:25:a2:0c:75:22
Serial Number (int): 517769880671324364535745745985563695805730
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 1c:7e:41:f9:f6:7b:5c:9f:ff:ef:5d:2f:7e:9d:b8:81:85:79:c4:d2
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): 7f:b7:ac:df:68:e4:7e:7f:4f:6e:cd:a0:03:79:00:70:76:21:7c:85
Fingerprint (SHA-256): c6:fd:17:14:90:e6:1d:a9:00:80:e9:7c:91:d3:f8:b4:53:74:3c:06:66:ef:0b:e5:da:de:a4:f2:5f:a5:04:c4

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

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/35.crl

Check the revocation status for certificate webmail.ncfwi.org.uk
8
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for webmail.ncfwi.org.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

cpanel.ncfwi.org.uk
cpcalendars.ncfwi.org.uk
cpcontacts.ncfwi.org.uk
mail.ncfwi.org.uk
ncfwi.org.uk
webdisk.ncfwi.org.uk
webmail.ncfwi.org.uk
www.ncfwi.org.uk

X.509 Certificate

The complete raw X.509 certificate details for webmail.ncfwi.org.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyvo3LeiTzzhefW+iLZQ5
A/eaMyVmJYv1k4HhU4NzmK8JgDHFTMUUnmj9mkPGwL5YX1Boq2kiJTNYyijFDQrt
B6sIknXiLZ6YJxhTgRMpUl7UWQkzGth4IiJlUx6j4aJSMHY6g947djsTK9CK3MMB
8YHxjlsbtOasH/ZDlFJU7qIRCpk6i3L4WHFXQo9ThX/AaUDCVnBBGFWh9JO+UJ8+
oR7rZNZKxcGZI06vsXoKgvZx+mymdLVQJWaWi4CDWYiUgjKWHHumTK496GjpEOeL
9J4iJ8c96X3uMXs0iZYyZB/zM13jkzZpbmD5PftSShR1ICJdrvSBm1eD2yX3zml/
cwIDAQAB
-----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 517769880671324364535745745985563695805730
 . . . . . . . . [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 2025-06-24 14:42:45 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-22 14:42:44 +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 'webmail.ncfwi.org.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 25623523486672415863638265426842871924275436720388309887980272174987267354204379736635358662400763004610162297850471267441973051540380057755088792907697310549934408403671492378517467614774877723588763375455736217876118963195206751564756794983128333243133242559646922155006111288673353186053035035851847011608316201872886105667338521494147770922403217358694101621129798220965368472697197004987027543837199866451741570900934053648952000112599836988180924249409138073793337486522685717980649960096741056595350195196059207388814663081406176320574326564082362739449498857159158413939310102520292689587871375276851453329267
 . . . . . . . . . . . . . . . . . . . . [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)
							1c7e41f9f67b5c9fffef5d2f7e9db8818579c4d2
 . . . . . . . . . . . . . . . . [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 (170 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.ncfwi.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpcalendars.ncfwi.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpcontacts.ncfwi.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.ncfwi.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ncfwi.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.ncfwi.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.ncfwi.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ncfwi.org.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/35.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007500ed3c4bd6e806c2a4a20057dbcb24e23801df512fedc486c5700f20ddb73e3fe000000197a299c2940000040300463044022036ddd918c93ea89a1643d932941add2a0eff64c85197f81005fe7242ac6d1738022033112d9e3574a8d748619c282cf60b7232c2062d48a98e06d52a7a2cd7243fc10077000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa3400000197a299c2960000040300483046022100ceb3515ac713e1164c4e13ae3ba9494fc686ff5d2353fdf7fb8319fb6094c10a02210091f65fff1dc5abcfbf4efd54cf36011661d9d4ce33370116d5fbcfc92e23ca42
 . . . . [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)
		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