www.blog.backlightmag.com

Issued by R3

About this certificate

This digital certificate with serial number 03:60:12:f4:97:9e:65:c4:5b:16:f4:1c:67:46:5b:94:13:a2 was issued on by Let's Encrypt.

With 2 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • 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)

Certificate Subject

CN=www.blog.backlightmag.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:60:12:f4:97:9e:65:c4:5b:16:f4:1c:67:46:5b:94:13:a2
Serial Number (int): 294029161119241838610276658822867252941730
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 60:01:5b:05:81:7b:34:4f:21:1b:08:c3:25:46:d0:0e:e8:47:1a:17
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7e:36:a7:8c:a0:84:ea:dc:c9:49:74:7d:58:cd:43:62:a6:af:ba:7e
Fingerprint (sha256): 23:b9:d3:26:b4:9c:cd:8c:20:c8:68:b2:75:53:6d:19:06:4e:9d:ac:bb:c4:c9:bf:8e:80:97:a7:69:35:aa:28

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate www.blog.backlightmag.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.blog.backlightmag.com

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

blog.backlightmag.com
www.blog.backlightmag.com

Other certificates including the domain name backlightmag.com

(limited to 100 certificates)
petitsbonheurs.com
moving-west.com
blog.backlightmag.com
bliss-coiffure.fr
www.blog.backlightmag.com
le-shift.co
karinesabatier.com
karinesabatier.com
karinesabatier.com
blog.backlightmag.com
blog.backlightmag.com
bliss-coiffure.fr
blog.backlightmag.com
blog.backlightmag.com
autodiscover.backlightmag.com
blog.backlightmag.com
petitsbonheurs.com
moving-west.com
blog.backlightmag.com
blog.backlightmag.com
cpcalendars.backlightmag.com
blog.backlightmag.com
blog.backlightmag.com
backlightmag.petitsbonheurs.com
petitsbonheurs.com
bliss-coiffure.fr
blog.backlightmag.com

Certificate

The complete raw certificate details for www.blog.backlightmag.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzeTrjj7SVrEcQBTh58Wy
PEOsGdtuc/11Q56JYeR1YyULB7Jc0fLzvnsW9CHfGmFx9Rc5feENhD6jJJJEX/UY
zgOdaxXAfUaGEkwKtK+S+YjtUlruDX/Y2Ua35TxXjOLDzro85IJ9ZU2vSLlXkeL3
4fhk5FGblyPUakOIBQhs3xnjih8GqTNQHkrKrfdEWxobxAEApRbpcPG6zkVuoReu
CMiLzfBvkQjXXFb3jIDDGKb0sUN1WhUFTN5BB9BjkpVZvU+YbyODNTSXM3cBgE6B
RzY9+j7cyKp88e+DySWZZnbLGLafItE5mGT5J7oLF0XC/zumOhsAQ6lgTXG1kbOM
1wIDAQAB
-----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 294029161119241838610276658822867252941730
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-24 13:45:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-23 13:45:16 +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.blog.backlightmag.com'
 . . . . . . . . [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 25991737245973925165092155808584345663704101246451646602798815712487485070628417722517143412615473103627793108590886078276320772140563035472547763162330066801657154343569007093761691434414332333106765893923822403936344397044091713530842641715105205116780179995977438929938138655816665840174874567029445639837646505649343040743859330821771608345402479516000962217852951523064716290431888297089145317088688170191132300685566655502058423325249710753477925211780666064525425368511407747394533941300347807185373570065035953861586978753607609076744330031951740281888962010915943791764194441757592236089571425351856983084247
 . . . . . . . . . . . . . . . . . . . . [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)
							60015b05817b344f211b08c32546d00ee8471a17
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (52 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'blog.backlightmag.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.blog.backlightmag.com'
 . . . . . . . . . . . . . . . . [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 (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 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d3beeb9f80000040300463044022057a31d2129394b61e94a7bc7578674482da15a1550b4c5456db0aa179cd567e802200a6bbabf9dc431bb5ef41babf2265dbe3cf5ead51d9e23408cace3b9632907be00750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018d3beeba36000004030046304402201eec5a306202a79207a1ac33fe64da76f2c3d99ee743c52799a13227d729fdd5022070379e0f57c7c277e5c27e1974f4b55df9b007eb2359daec6d55fb6cec6e23b8
 . . . . [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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