mail.thebookmanlimited.co.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:2d:8a:99:06:e6:51:04:87:d3:19:0f:77:d4:6b:c1:8a:d6 was issued on by Let's Encrypt.
With 9 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=mail.thebookmanlimited.co.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:2d:8a:99:06:e6:51:04:87:d3:19:0f:77:d4:6b:c1:8a:d6Serial Number (int): 276833792331502653777914617962251279239894
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 16:fb:ed:98:7e:80:63:1a:dd:9b:45:cf:71:d8:61:b2:f2:10:cf:87
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 15:e9:ad:87:c1:b6:2f:bb:67:5d:64:55:c5:b2:96:52:ff:66:93:8d
Fingerprint (sha256): 31:eb:ca:04:98:15:a1:d4:0b:19:d0:77:72:c9:c2:d5:67:e1:83:15:7c:b4:f1:e4:3f:03:09:dc:e7:f9:e7:75
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 mail.thebookmanlimited.co.uk
9
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for mail.thebookmanlimited.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
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
bookclubpayments.co.uk
bookclubpayments.com
mail.bookclubpayments.co.uk
mail.bookclubpayments.com
mail.thebookmanlimited.co.uk
thebookmanlimited.co.uk
www.bookclubpayments.co.uk
www.bookclubpayments.com
www.thebookmanlimited.co.uk
bookclubpayments.com
mail.bookclubpayments.co.uk
mail.bookclubpayments.com
mail.thebookmanlimited.co.uk
thebookmanlimited.co.uk
www.bookclubpayments.co.uk
www.bookclubpayments.com
www.thebookmanlimited.co.uk
Other certificates including the domain name thebookmanlimited.co.uk
(limited to 100 certificates)
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
mail.thebookmanlimited.co.uk
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
mail.thebookmanlimited.co.uk
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
mail.thebookmanlimited.co.uk
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
mail.thebookmanlimited.co.uk
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
bookclubpayments.com
Certificate
The complete raw certificate details for mail.thebookmanlimited.co.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF8TCCBNmgAwIBAgISAy2KmQbmUQSH0xkPd9RrwYrWMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNzAyMDgwOTA0MDBaFw0x NzA1MDkwOTA0MDBaMCcxJTAjBgNVBAMTHG1haWwudGhlYm9va21hbmxpbWl0ZWQu Y28udWswggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDQd9JruM8EUKDc MrujA3Ma45WOB3SYw2HJ8WM7NwYPGSRRiC3f54KC1zi1Dd+jp7sIs8880W5l25cl uqlGgMuzAnzFmG0ka3GEucesWYWTo7O12V6BEuqAV3ysYGCo6TaotigG4bYYKJ+M nb899GyVwdTwQR7pknI+G69tgt+3Hq7OBBmKv5so1zPShFTMbzqd+1zARF/ClU3P sA4lsW3SqI2pCRakbA57BGOr0IPakuSaRLGR5YgXzeumVO8Y4DrVtN7cSzHQoSj3 clWGJ5GGk+Xt7IyBjLE5TfSq3QnyIBBxrRXl32p8Jkp6ixc11xzZnAWEi5ox20Nz TInttc0dAgMBAAGjggLyMIIC7jAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYI KwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFBb77Zh+ gGMa3ZtFz3HYYbLyEM+HMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyh MHAGCCsGAQUFBwEBBGQwYjAvBggrBgEFBQcwAYYjaHR0cDovL29jc3AuaW50LXgz LmxldHNlbmNyeXB0Lm9yZy8wLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMIH7BgNVHREEgfMwgfCCFmJvb2tjbHVicGF5bWVu dHMuY28udWuCFGJvb2tjbHVicGF5bWVudHMuY29tghttYWlsLmJvb2tjbHVicGF5 bWVudHMuY28udWuCGW1haWwuYm9va2NsdWJwYXltZW50cy5jb22CHG1haWwudGhl Ym9va21hbmxpbWl0ZWQuY28udWuCF3RoZWJvb2ttYW5saW1pdGVkLmNvLnVrghp3 d3cuYm9va2NsdWJwYXltZW50cy5jby51a4IYd3d3LmJvb2tjbHVicGF5bWVudHMu Y29tght3d3cudGhlYm9va21hbmxpbWl0ZWQuY28udWswgf4GA1UdIASB9jCB8zAI BgZngQwBAgEwgeYGCysGAQQBgt8TAQEBMIHWMCYGCCsGAQUFBwIBFhpodHRwOi8v Y3BzLmxldHNlbmNyeXB0Lm9yZzCBqwYIKwYBBQUHAgIwgZ4MgZtUaGlzIENlcnRp ZmljYXRlIG1heSBvbmx5IGJlIHJlbGllZCB1cG9uIGJ5IFJlbHlpbmcgUGFydGll cyBhbmQgb25seSBpbiBhY2NvcmRhbmNlIHdpdGggdGhlIENlcnRpZmljYXRlIFBv bGljeSBmb3VuZCBhdCBodHRwczovL2xldHNlbmNyeXB0Lm9yZy9yZXBvc2l0b3J5 LzANBgkqhkiG9w0BAQsFAAOCAQEAOTDCj/BMaOsWNIqCSK26SnweBhkXKq/5kDaE 5k+p1sARtnr9/Lghg1s14yERuZ2ngooacbnmoIZCKTxgishnWh2Tv+CWE7N/9/zj I22lnQftmUMp8RB71+iUfd5zQzbmi+/qQ8Rz8p8GfD2p1PFbOOTETjSumJy4ZKbv NkMzei0bujl1PdusDG7vztjoH97XkC9VC4VepXZA9nM/B8Cuw0SSoV060wkPOmxf qhB1RwqN4ljJNDLPGzfkszGE6mQ+ZytAE4q6Us3CszZkEXs2MxoEWH9syAEMwW1u 6I/SZwFUGN9rJFYfMMYdKpCnKPje8Mup1qNUAennykemhZxxLg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0HfSa7jPBFCg3DK7owNz GuOVjgd0mMNhyfFjOzcGDxkkUYgt3+eCgtc4tQ3fo6e7CLPPPNFuZduXJbqpRoDL swJ8xZhtJGtxhLnHrFmFk6OztdlegRLqgFd8rGBgqOk2qLYoBuG2GCifjJ2/PfRs lcHU8EEe6ZJyPhuvbYLftx6uzgQZir+bKNcz0oRUzG86nftcwERfwpVNz7AOJbFt 0qiNqQkWpGwOewRjq9CD2pLkmkSxkeWIF83rplTvGOA61bTe3Esx0KEo93JVhieR hpPl7eyMgYyxOU30qt0J8iAQca0V5d9qfCZKeosXNdcc2ZwFhIuaMdtDc0yJ7bXN HQIDAQAB -----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 276833792331502653777914617962251279239894 . . . . . . . . [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 2017-02-08 09:04:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-05-09 09:04:00 +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 'mail.thebookmanlimited.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 26316653841725928312221819615503576585221592651096011263584501419201938907602426845614994672289323024907659132104242030612856372678665529630830368848651216145374492245261134775244113920060614076495779044625721341479803865316384651105402737423793747543721872113093337704369321861291306055237153663400163140830636815194061627377883191406461794263191135203815713838921001926027421403841811965960199971835267709995068880000517497868402719843096141531880551623652757801153855256219437069026886755103244307430409533987031597274007208749899225225052962305826507397578619950006629934354542130535641652019853211339358855351581 . . . . . . . . . . . . . . . . . . . . [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) 16fbed987e80631add9b45cf71d861b2f210cf87 . . . . . . . . . . . . . . . . [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 (100 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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'bookclubpayments.co.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'bookclubpayments.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.bookclubpayments.co.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.bookclubpayments.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.thebookmanlimited.co.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'thebookmanlimited.co.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.bookclubpayments.co.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.bookclubpayments.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.thebookmanlimited.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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