DV SSL/TLS Certificate for backstage.pl

Certificate is witin its validity period

Issued by Let's Encrypt (E6)

About the backstage.pl DV SSL/TLS Certificate

This certificate with serial number 06:05:fd:87:5f:49:bf:b4:62:d2:50:3f:7c:fa:a8:56:02:4b for backstage.pl was issued on by Let's Encrypt.

With 3 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 backstage.pl 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): 06:05:fd:87:5f:49:bf:b4:62:d2:50:3f:7c:fa:a8:56:02:4b
Serial Number (int): 524712125000847556035279693370872458248779
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: c4:76:16:6e:c0:6f:88:da:4f:d0:f5:50:69:e6:27:b6:33:2a:cc:ab
Authority Key Identifier: 93:27:46:98:03:a9:51:68:8e:98:d6:c4:42:48:db:23:bf:58:94:d2

Fingerprint (SHA-1): a5:5f:e0:3d:3b:ee:c6:f9:24:46:fe:37:ea:a7:7b:26:11:d1:10:00
Fingerprint (SHA-256): bb:63:15:63:eb:ac:a9:15:5c:e5:89:02:f2:29:1e:d7:ee:70:7c:12:d7:96:ca:99:8a:51:cd:b9:b4:86:33:d9

Issuing Certificate URL: http://e6.i.lencr.org/

Revocation Information

CRL Distribution Point: http://e6.c.lencr.org/76.crl

Check the revocation status for certificate backstage.pl
3
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for backstage.pl

Public Key Algorithm
ECDSA
Key Size
384
Signature Algorithm
ECDSA with SHA384
Key Usage
Digital Signature
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 backstage.pl in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEZmyaAZZu4h026st6fEc3abuCT+U7Kr0q
dL2cpXXnAmdfL7+8NolXIpo7wHopj1AoJvm4DbzHEcdGCxkKD3/apBnWhFSo5Wim
Izf5aloMSNG8xS6WhlxlzK1+DrzEtVir
-----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 524712125000847556035279693370872458248779
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.4.3.3
 . . . . . . . . [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 'E6'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-07-03 11:39:59 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-10-01 11:39:58 +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 'backstage.pl'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.132.0.34
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (776 bits)
				0004666c9a01966ee21d36eacb7a7c473769bb824fe53b2abd2a74bd9ca575e702675f2fbfbc368957229a3bc07a298f502826f9b80dbcc711c7460b190a0f7fdaa419d68454a8e568a62337f96a5a0c48d1bcc52e96865c65ccad7e0ebcc4b558ab
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							c476166ec06f88da4fd0f55069e627b6332accab
 . . . . . . . . . . . . . . . . [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 9327469803a951688e98d6c44248db23bf5894d2
 . . . . . . . . . . . . . . . . [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 (38 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://e6.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 (53 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'backstage.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.backstage.pl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.backstage.pl'
 . . . . . . . . . . . . . . . . [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 (38 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://e6.c.lencr.org/76.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)
							00f0007700a442c506496061548f0fd4ea9cfb7a2d26454d87a97f2fdf4559f6274f3a845400000197d04bac670000040300483046022100923e68afe273a81d156f80efbbf27c2b64a5e781224c11cadaa1e455515a5ca8022100801ae8b5b76503d6188bbefcf753a5d0c2ea8a3db820e447aa75d642df9b322a007500ccfb0f6a85710965fe959b53cee9b27c22e9855c0d978db6a97e54c0fe4c0db000000197d04bbc0c000004030046304402201b687ef649ca4022337cc03244a76dc69ac15f6bba150fae153ed56d1a52b72402206f06718b453ec3c8c376b2060e52a03c4959d72689406c4f0294217bf3bf5a9d
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.4.3.3
 . . . . [c:0|t:3|false] BIT STRING (824 bits)
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 10473215214559369903088958833844100953509723082111292425110710370567011531828870473117204731721263869366165606019671
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 20816845328311064467074325931960194761431541462948862159008995233889021092649286178562356741913833059404062665352296