www.28912.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:f1:21:75:c9:c2:a7:47:c1:37:97:b7:b4:fa:dc:bb:c6:eb 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:f1:21:75:c9:c2:a7:47:c1:37:97:b7:b4:fa:dc:bb:c6:eb
Serial Number (int): 343389384338006625037751971094912927778539
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 9a:d7:93:10:34:c9:bb:90:64:1a:fa:95:bf:67:44:17:d5:98:9a:36
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 1c:2e:1b:16:39:67:99:fa:ef:93:d4:4c:45:4a:4f:d3:df:27:8b:16
Fingerprint (sha256): a2:0a:56:28:3c:fc:d6:9c:b7:6a:60:73:b4:a2:1a:9c:33:bd:45:0d:ad:6e:61:4a:c1:34:9a:ee:41:a8:9c:1a

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 343389384338006625037751971094912927778539
 . . . . . . . . [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 2020-01-12 20:24:07 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-11 20:24:07 +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 779973261594752396721046114801345479144226999530281765182775371493672927526435215412668069364030961029320714891696895274881192549386489776604211205156477874106187237474675143474725650283347873046166513402583457295002806134415875127990572107365342290710410827440889743942757389751019443032811836537364069890316984013474168962964330183522232071386078796831262181333646627592890744905166211611636495147976883641862841539647651794757521709590882043469241484029096173036185686850516357022203685026327961142331978619078575642385835331517221183396262305684599347544837596192889285929009730714715097992792996394851274246461731868385274831099560533190173563614008027046754715136912630154725152475675042008723995182813337715922597121076258075887278429579111766941404373124695883391024309959430791965419317323369334341829323357411182405737269846023160478945232778870903793018897484454386299942566971452011882630125390088134474361050288565070797767872669278800468995124773679164391173688531508556408351840205086345460732889173334023138793976586228124974165665462201217938236154114140981021243476330438697850207838407370076270612367134623232878975808630450563597861870463554120342453486750754826735305353690157367131670313688034929460858686144253
 . . . . . . . . . . . . . . . . . . . . [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)
							9ad7931034c9bb90641afa95bf674417d5989a36
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f9ba481c6000004030047304502200105c197844ea641038fc4df1ce26319c06412e440ea0ed4fb0eb247a01c63e4022100c24526f6dbd2ea33fbdb443b23d250057fd3cd3754bcf7d2956e9b1eab6bd1000076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f9ba482700000040300473045022036bbea6ea1a03047d7f4c9f6e6c7399f0de24b2da5d088a4168380fb0834d7a3022100cdfdd8e1f89132675b0fd8d6b95d4e1bb819b77631893029bff3cfc2e85dc71f
 . . . . [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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