www.zeintoto.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:a8:f0:25:52:9a:18:2c:6a:1a:f2:1e:3d:78:3f:a0:4a:f7 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.zeintoto.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:a8:f0:25:52:9a:18:2c:6a:1a:f2:1e:3d:78:3f:a0:4a:f7
Serial Number (int): 318823503947336753260511168937071959100151
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 7b:49:f4:53:b1:dc:4c:d7:5d:55:aa:65:1e:8b:57:aa:7f:ff:bd:d5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b7:06:3c:93:18:ff:4d:92:fb:f2:d4:4e:de:ef:3f:ed:bc:dc:91:84
Fingerprint (sha256): bb:88:8c:08:16:2d:a3:04:70:15:52:da:99:ca:97:c9:71:42:36:7e:31:be:c4:02:5f:b9:bc:6d:a9:aa:48:32

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.zeintoto.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.zeintoto.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.zeintoto.com

Other certificates including the domain name zeintoto.com

(limited to 100 certificates)
zeintoto.com
zeintoto.com
zeintoto.com
aguos.com
www.zeintoto.com
musclecarauction.com
zeintoto.com

Certificate

The complete raw certificate details for www.zeintoto.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 318823503947336753260511168937071959100151
 . . . . . . . . [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 2020-01-31 08:30:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-30 08:30:29 +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.zeintoto.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 646486156935741551889903557002011376760056785143729611262087958594181338467687258565193152775155300820538701007785142067334725392209519570973761246230706459866560248845420363046964079569641559591755583202192478415583126738634889382900586968766059012957373343911401988549422694730873888349463723596174127461382138531134658570275742151672325233678857643002809959656377835573946886797150644157868846152548163803114607711142188560633456963437042382290397421387172667411253950169292555333244599535303228849455843491386935787464493727559717644880262422922012030827336299452409367896931699141231027251428132467803785147993261701550898582731713206442884261908196904975571256273972937806213924813291286334149121182265564026885253260823831933324674164109679271229974089787237793877571437399923543435045499174640393723520867025549924053969978286914741023830823611162934103130150794147665190771224640285792885930266805624564805006087997608514573902579175205275110624784739559351363625995234529680296077255641196166275862690002202686421279600084645520845227583896156180227944631483186617614161658091291263441769276846661412091561745688983982627145715910126457698354373308216315288113286865017267270961468266181296464633572717286612563872291889607
 . . . . . . . . . . . . . . . . . . . . [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)
							7b49f453b1dc4cd75d55aa651e8b57aa7fffbdd5
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.zeintoto.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ffaeffd020000040300483046022100a7356868e82a01ab42530f225885f692b3a1ba8e7b9327733baeafdf344b0c1802210087924bf2c458d7d6a473c7da64a06b74fe24b118e0727930d062fad9e2617ed60076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016ffaeffeb90000040300473045022100d2eab52703ca6f6cf9a2614fa8f63d9033143c66ace8f5a8d15d532cb20eaae802207160c4b202dd5497d00dc589cf4f2932bfdc923c26b0cafb71d958c3e42769fc
 . . . . [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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