www.28912.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:db:7a:68:a3:b2:60:8e:c0:a3:86:87:b1:c9:4c:13:4d:55 was issued on by Let's Encrypt.

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.28912.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:db:7a:68:a3:b2:60:8e:c0:a3:86:87:b1:c9:4c:13:4d:55
Serial Number (int): 336021405285490572257799812674308434775381
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 5b:29:e5:8c:7e:de:41:da:84:d2:8a:b4:a2:f7:6c:ed:25:85:c7:73
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 8a:b6:bc:8d:12:4c:26:ca:a7:a5:04:39:9a:c1:ba:09:82:b2:7c:a1
Fingerprint (sha256): 88:7a:5e:9e:7b:8a:83:ef:bb:76:49:36:ea:31:6c:25:c3:37:fd:d8:dc:dd:78:b7:70:bd:1b:ef:39:b6:cb:a1

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.28912.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.28912.com

Public Key Algorithm

RSA

Key Size

4096

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

www.28912.com

Other certificates including the domain name 28912.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.28912.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 336021405285490572257799812674308434775381
 . . . . . . . . [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 2020-03-15 02:59:03 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-13 02:59:03 +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.28912.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 885560873150389137710476824656799654364324350010226311708663935555254150150050429260136190898817690471479559498910459922987400736016482029829358750211922999101305977469851665459649924664566685858005170487329057820693897633198761216573384898093933634054700095971596251664605056022999994743239015466443460495066147267856056048514643417436944545578589842483940945933703847397646800391797451351887728701613292180262106426519822113837642009054007052684333983533012381874694255421129226385501855788131694436879256089603535404944882774549262474436036818756555137515635621806378386079035492952821288054021987029127271075527467158053722590429532631723245517839645640637633334231499303604656453763369145257686201804284365799947165298750957844427809947817747760342882203450784630484086198611329015736090034620171107789576768976618888389807597367000527711075249604881490304495656975350349162088963835095492352485078431477239058343671342655674032094424751159835242395134664425671919151106606574495163653749913844269115264998547160131931930461845885095950520723529676078649524391513321226939951861665728698636216414962253452477866520569498894139803897595492789756292971989719486314030852726490569022827572787325101909743345607287487993144963960189
 . . . . . . . . . . . . . . . . . . . . [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)
							5b29e58c7ede41da84d28ab4a2f76ced2585c773
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.28912.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 (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)
							00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000170dc585d6400000403004630440220136002bc47d8286d2f57ee5817074bf5c3d0b057b8077ad610bad11ee1272958022036c2b8f16af642de3e22fbd51339a644803e0bbbbe47ea6eac162b53910554be007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170dc585d530000040300473045022100a5920393b30746a78b77966b52f3922c06f0087fb088ca0142ab3d5c97da9cb8022011212eccb5032d845a2e2a5d2fca913a4ca2db3e83a76bef6e984ef253a9daa5
 . . . . [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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