www.28911.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:0a:a1:23:8a:63:d2:20:7a:e7:cb:fe:f0:2e:df:59:f3:dd 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.28911.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:0a:a1:23:8a:63:d2:20:7a:e7:cb:fe:f0:2e:df:59:f3:dd
Serial Number (int): 264953871709082689259945962386481162613725
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 02:0c:db:91:84:2f:94:13:6b:cc:ad:67:5f:23:d1:f2:84:e3:83:1f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c1:39:d2:4d:6b:36:a9:d6:7c:43:bf:b3:5e:c1:fd:d3:cb:f3:25:6b
Fingerprint (sha256): cd:fb:df:7d:f4:a7:31:a1:ef:eb:ea:e5:1c:16:f4:7b:a9:ff:78:7f:2b:76:16:5c:b4:9c:b9:95:15:4c:80:24

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.28911.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.28911.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.28911.com

Other certificates including the domain name 28911.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.28911.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 264953871709082689259945962386481162613725
 . . . . . . . . [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 2019-11-07 09:25:44 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-05 09:25:44 +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.28911.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 880512224096973233540887679447866558586950853296247701724145545317911781281932197755345739838794137674193016622680065670554998824562664792967594257984347195311002514565652143723686932286882274962259511526718510445378431976984978058310071227605692537825815479078522437940935006413867906271105323908559026317946733001773519026331897078745359806970105101064537097028948080391104382417119831727112287830373273434190753934763011229352228244128447051599836844955080666545049126742445818164923573607899199894083008090730911885513561163974734644631093489140437444881787458963100885272286882266804662645045970264235016690065250263555689951327858212060811545654228209481032325115048790401029863508808017847594227639883520095484639440237856296370294584938029591587256780349709565886157680355181857802229386302388757882445638965408464438981629365668885560427945176221262698817747560335977078660477535849107133276164617161512853578208475527418056913869599457345512250799974223631335533742579363362109325503936861990637862193155018221871052602346638786376076749219006397936660131531527418215021618239728189004147300341882637617843036552581030449301089801974274346034789523136620128985375363959831223784628025986603608034159453600834617733341139827
 . . . . . . . . . . . . . . . . . . . . [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)
							020cdb91842f94136bccad675f23d1f284e3831f
 . . . . . . . . . . . . . . . . [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.28911.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)
							00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016e456605d4000004030046304402204f603b5ae0a9eee0f2b82f7947c2b9ba7330661e9f2d586b0880aa4ab03c9eb702205adf18c62ac1a1a4e51510cda4de2047c3a00bb1e60de6bb749b7c393fb9539200760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e456605ff0000040300473045022046a77c5a35bed8e04332f322270187297edcd8522404976002862f750ee35111022100962d3ecb83b065bf0fbb8a48520116e99887c5969d490970c37afdd65a09fb53
 . . . . [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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