www.72490.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:9b:29:3e:08:3e:d4:56:a1:1a:65:08:58:0b:78:d6:39:8f 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.72490.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:9b:29:3e:08:3e:d4:56:a1:1a:65:08:58:0b:78:d6:39:8f
Serial Number (int): 401247731037255997589008950730888307947919
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 6f:a7:25:7f:1a:e9:22:8d:1f:df:38:d8:df:56:e3:f8:ec:2e:1c:a4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b1:9b:70:c1:b5:2f:86:2c:04:ab:ea:ff:d8:4d:fc:95:37:33:c0:ff
Fingerprint (sha256): 06:56:5a:09:eb:16:1d:5f:51:15:32:67:30:9b:21:44:4b:b6:5f:d2:8d:17:f5:a9:80:61:fd:75:b1:8a:8a:73

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.72490.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.72490.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.72490.com

Other certificates including the domain name 72490.com

(limited to 100 certificates)
www.72490.com
72490.com
69602.com
34835.com
307.exchange
www.72490.com
www.72490.com
72490.com
72490.com
www.72490.com
72490.com
www.roncobiellese.com
72490.com
69490.com
www.72490.com
72490.com

Certificate

The complete raw certificate details for www.72490.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEArzz470PHIeTY+Z6v2Udv
+iy1Up057OsV5nZjZ9HVZ9OkPwsi3BklWTByL1NZ6aLhExxQowOhIzVI8nNRV9Ol
1RoD+NbuGraPdmBtx9DMUJCszgYn7+zSd/oqaMYmM4ZbmCdZQa8pRmoKneLq4FXa
xZUhY5X85eteN9QMKt/y8N3vWcZhvgKnM8MIK4HVcOXF8AzLmvhWZ0tPvJ7zy1No
KSodfUHto2XJlT0Xw7m0hWU3uw8slO+L/WBKcfVDVjxXTCre76Zhh1PGK+WQ49bK
AfKFjsPVh02g6AC20t0S6eyp9B0Cl22CTYy19I16/dGQqDhL8tpmPcwV9E48HHG/
bACUWrNIe5daizth5fWpEq+ib4UnEsuhznEH/BqjIJv87YmVMtz/w4mfuJe2+PXU
GI0y7D6lxRIUZTMCnyqnnfn1QqwMt7WaHAltqCZ0GGY9W6SGfZHl9txi4t9AFFvH
nRXTGWPNzgdmaeAn1/FevLVYSRGkc+cMFeOWdHdX19AL3rrfrexjoVyRz/V+jmT6
Wz/EIUIb72dTTjzI6aP7t3uCbQMTcv0B12owf8bYV4J9E93P1GayKidPNJPIEp9F
DFL/3ZzLjozAQkatR8MJWTP3QxhN6SyRbG2ZXd2FZZDXr7NQITspV3e5hFjVdCNc
+TmTarc+r0xYxfavidaKPlECAwEAAQ==
-----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 401247731037255997589008950730888307947919
 . . . . . . . . [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 2019-12-04 14:11:01 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-03 14:11:01 +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.72490.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 714909374769169547133484267137541631357713923615804488357617136345401067026683166299882464103954660580617023883740007520432852122749239211003640762400281111346780406698574375942458623805179806601919882925325957077265914152920788429084364850558309822082650464379476468654993521286154593007739273699943900649953162114787881122347126180616277316754798909648482699064010257692187739471184007645397346244587622895627366207743193545632342955812418916775748427689060720182854824846263550694262888373735664810552303807874388054904544345692806888588099141841991977858201917098077843881579519013718710008426505024939984965480069845567551704093197061042052918915545413822287997671232592748614367687284773927673690430351158787317583888327810753901105710019799151133940604017832003745770061026771197278889124072007720844032058081321329270270566967793773064581827488912135210186642055493733346571589531210666942440097039208499473052514733348491737160176594442729373376886336266834759501948555032260677387899313090933497899304818775867689077041330131124414883573530471354472582954285284304352558977905877179870777853106153751502373114978996028244521571739057783997824416397138115532446580930091587924589876902830491777433283861881467395836234841681
 . . . . . . . . . . . . . . . . . . . . [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)
							6fa7257f1ae9228d1fdf38d8df56e3f8ec2e1ca4
 . . . . . . . . . . . . . . . . [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.72490.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)
							00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016ed176eb600000040300463044022078d7d6277e8fa038f29edbd57533bcac6902ba11a6f18fcd9f57707c6934c88202203f7c765a8f3ebdf5714d07fdb5357d5f2f16162e3de9eabd1f535451ac39f97800760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ed176eb860000040300473045022100d1dc87ff83b795abd37124e59395be218a122fd3072f189932083db32ad451f702204be92c98f95a0907ae63051701a041260111750bd4cc4914de182bbab592d678
 . . . . [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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