www.28921.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:19:e6:45:f1:d5:e7:59:c9:40:54:7c:72:96:63:23:73:a6 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.28921.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:19:e6:45:f1:d5:e7:59:c9:40:54:7c:72:96:63:23:73:a6
Serial Number (int): 270150002580825883757970202957390413001638
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 77:8f:c7:eb:c7:ce:50:e8:bb:37:cf:12:40:af:a6:1b:b2:a3:cc:32
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b6:57:1d:95:08:ac:00:b7:0c:07:e0:ad:22:ee:be:1c:04:3c:6d:f3
Fingerprint (sha256): ef:75:b4:33:c4:52:4d:a5:9f:93:36:9a:95:c4:42:80:19:e4:06:01:e8:0f:08:cc:f8:b2:ca:1d:eb:76:b0:57

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.28921.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.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

www.28921.com

Other certificates including the domain name 28921.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.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 270150002580825883757970202957390413001638
 . . . . . . . . [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 2019-03-23 13:12:07 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-21 13:12:07 +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.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 859593713522645913620754691789044815320253464047687074113973345713396805135465893497087629706349087219675983766997150557529062411558450326215432823361941462702416002377130598033404589303312682963563975799382692577448916242232788319240999075482212472554852304625853842648897813499615746595840773748294601644782524456121161317125395662253590583509317272726407972535281895397425027298217990679998243688307192437843316319493370631931141213713459896848144339167853401688139206343990010799892357034630115573493945406111276068662682293856178730361740806549252004505189285219534453300586181777629243655384407537944073206757307823439131488558583098371272321848966922420211951237656007032324495678133634956282841237420861955264870343749209631254418234158162075851731984085972197934825477770525312280828980775265977120703806589031709464290035875518546109948188661772129480260848098401708316260857521712708566156207208354666671607192843042793969946631455961451402038253757227053998183779031964855628414613955388934400913250589097420020712243371956514572681693636410762583959259425134029047697775472365579526040552864592530713240595520992430351403204572430996488218362601203556624004884538759258582367677947508250674105911923341402241271684905307
 . . . . . . . . . . . . . . . . . . . . [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)
							778fc7ebc7ce50e8bb37cf1240afa61bb2a3cc32
 . . . . . . . . . . . . . . . . [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.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000169aae4fc50000004030047304502200d7ef71d168e7c01d1fd75b0486e4a0481ac22c6072222989c9010ec62559297022100948215e3ef153a22d486adc2c33fb8d8921143146b9ea1738d67c545c4a63e63007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000169aae4fc54000004030046304402206fcd851147501eecf8dac2c9b2607c91952a066c5d0a043d2f4b3e3084f51f0c02207b431a09d702940dd093d8ae207688af3cdfdb7b9fe3e1091167b7e02853e34a
 . . . . [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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