28921.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:83:2f:fd:03:75:29:c0:c5:aa:45:f1:ba:5f:ad:7e:13:01 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=28921.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:83:2f:fd:03:75:29:c0:c5:aa:45:f1:ba:5f:ad:7e:13:01
Serial Number (int): 305977635298960624768721432787698577183489
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 63:d4:59:02:fa:c1:b2:15:64:1b:8d:6c:43:0c:a4:a8:10:65:15:28
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): bd:c5:57:86:25:34:b6:48:85:32:9f:da:f7:1e:e2:71:5b:d0:8d:8b
Fingerprint (sha256): 1b:0f:88:a2:b4:54:81:16:94:79:19:7b:0c:42:88:0b:ca:bc:ef:4c:15:61:2c:67:e6:30:49:b6:44:c2:be:5c

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 28921.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 28921.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

28921.com

Other certificates including the domain name 28921.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for 28921.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 305977635298960624768721432787698577183489
 . . . . . . . . [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 2020-03-22 07:07:06 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-20 07:07:06 +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 '28921.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 758073469108274092387652618416774616797347343428682167356350073198633622167166659899778161683227865163832729053130536851583407469984224640219227845599670010593968167199489663007455972312603677061917327324325391079797545200350781020156629316037479126659606915689879464376110349635159651193514908046972427852949993058288728559592983900997943072376664406840086393320289337426305059499370138305629753850765993825460509893950925135172602799870710844058620650721271835242040707448101038848531429323488313022295378379567634079932288896676443330295478912655220800281953825790674363493080228552253438136745315807715519138183888622563649567293180083207070880781639613681756733900615384299919471484519159847897744795303847276298186935691357177751714398787162735762710369569733169380722884736520050110054683213277229314962098954128235540157583614445732004913126159011732247879696744818310065185582646738706859723613048524981330548761479092398373025317093973572115253821040491964194495991155762671429889741264722325380815614151449520384038766619721401356212467034833379720837247600504081369217926221583303145292373634360598018061058074471162831120936074203076915107534170540801033915025760962652726174558956025267541037454939145923726350085572573
 . . . . . . . . . . . . . . . . . . . . [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)
							63d45902fac1b215641b8d6c430ca4a810651528
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '28921.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)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a112128418759681714558000001710147fb48000004030046304402203bbe7ad8c934bd5ca8bb761c32e245607cd6afb30867c9c49d386bbe5f212e5802204e0f997637d92fb96db40f48552cfbbc0235e6aa5675460388f3e9b2978b491f007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001710147fb410000040300483046022100ec64b2d468e177831d4a2f0b8d5089461d0e2924bb829723a0b125c91515287e0221008318d45062f1733e0ecd15a321a4f4645f762ac951ade0d39dd12c0ac28179d7
 . . . . [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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