42316.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:7d:2e:46:e5:c5:c5:82:7e:af:60:37:1a:68:57:c2:59:29 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=42316.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:7d:2e:46:e5:c5:c5:82:7e:af:60:37:1a:68:57:c2:59:29
Serial Number (int): 303933666269325124997968343259926430374185
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 0c:24:a1:9d:ff:1b:21:50:a2:dd:7b:ac:ff:57:19:7c:fb:62:8d:d7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 54:59:fe:43:44:f6:88:9a:7e:9e:3b:7f:f7:8e:11:c3:88:cb:a4:8c
Fingerprint (sha256): 48:a4:9f:c7:da:43:a6:8a:2e:0f:5e:62:39:77:a0:65:12:ab:ae:a8:a5:05:7f:eb:1d:5d:fd:38:6e:ba:0a:a9

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 42316.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 42316.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

42316.com

Other certificates including the domain name 42316.com

(limited to 100 certificates)
www.42316.com
42756.com
anetworkdomain.cloud
42316.com
www.42316.com
42316.com
www.42316.com
www.40638.com
www.42316.com
www.42316.com
33274.com
www.42856.com
www.42316.com
42316.com
834.me
42316.com

Certificate

The complete raw certificate details for 42316.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGSTCCBTGgAwIBAgISA30uRuXFxYJ+r2A3GmhXwlkpMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA3MjYxNTU4NTlaFw0x
OTEwMjQxNTU4NTlaMBQxEjAQBgNVBAMTCTQyMzE2LmNvbTCCAiIwDQYJKoZIhvcN
AQEBBQADggIPADCCAgoCggIBALV+f7RzcKGtyorRRO8ChyoiUwAiRSeRLjiBe8Bk
vqAjl0H2kUw81rTjPi6ni1UXWniNYgrMiJ9v+ikn0tIAulXYd6gHnB87OXeJlqkZ
7kX2XgIpGQrwgISExsoDEypEz5VzlFyAgmne+WA9m74ZnJ7TKbSztHOlsvyo01Ae
Sj6/kMvr/kgoh9kGhfyMxToCDyGNr6K0atR5fGRtZtLC0VfdMo0iW3YKWoN064kV
CZb4sn3rKa0VCAadMoDPECUESJADwC/O1aISIfsuFljpuIwADvWFl8rZCzC0tor1
UgcY3NXbaKfUVQoVSrq4zFQV6tB2VZJcz50sX7nb0wJFHYQZkJQQLUJbQbXeSeBA
okA6Whp8lKUIfzgaFr79Xvx7BjQXR4JfvsgdAyD1ZPKbelm5O9d4cmapD9cYMUg0
qKIZtoUrdmOk6W8gxXfUDz/oImvHwp0dpaq+NPUJrafIgjZ94YY6T/eb9U4El2/c
WDgtHf6aGS1EuPb7ayo6T9GjXSRTnTCzUZ44whsX/zVVkACIx66e4E9zrMcfbzDl
hwYsI4yZm6HjMfGjVHdqQweqx4dqQovg8at4NKfzmii84Cg07kWd5uG2aH+bw/qP
WGpEfZsyh88VuPLUE9dG2nlxf2I99qAQzWmOjguB8cYEDmhYJKT4TTRhZKPICWpd
OBc5AgMBAAGjggJdMIICWTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB
BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFAwkoZ3/GyFQ
ot17rP9XGXz7Yo3XMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G
CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl
dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl
dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJNDIzMTYuY29tMEwGA1UdIARFMEMw
CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j
cHMubGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHUAdH7a
gzGtMxCRIZzOJU9CcMK//V5CIAjGNzV55hB7zFYAAAFsLziwLgAABAMARjBEAiAG
d2YCSHooVLT8LO/Wc8WictK/w3AFCAGIejdEeQhFXwIgBF7iIclsUoKtG/JHMRAC
6YS15uYbgGgZxD3mrxz3/6cAdgBj8tvN6DvMLM8LcoQnV2szpI1hd4+9daY4scdo
VEvYjQAAAWwvOK5YAAAEAwBHMEUCIGacg2DMxGmhNJLH0UWfra0LywButebueugI
/ZAUOBhjAiEAuCjtEtt7xOhssvpSDPC42m6TfbH8VzegMuIqp4zWwCUwDQYJKoZI
hvcNAQELBQADggEBAJoiCRa5MdaF16eBQ122xQZZ1JDYK+1CHDAKgAMX7KmKTj2u
LnxwTxpb6Xd/XE4eAW5zca4RAVmb+s9TUx966P8S76vXcQz4ZLzHBWaoftNrZGWb
6N0rnUqCeqWwo489TzERD1/ciUM5DnzjvlUhLkMC7kP5Vh3EvwROICIvPoBBxWUL
iuQE4BN3OrJob9WRoRTii2qdUB+CApXcIOM0AtUP/xF7OjBDxUq+6ixVTt0Xl33D
E2mLuNRBTWuZ4cR0ZwQ2u2Nc8mBtP5/37V/OlpVvnDY1L1aoEVSLf79bGkQV71sU
Z3z7Tc2gTVu2cKbgnnHmQAdhmNCuWv3Ndd7oa9M=
-----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 303933666269325124997968343259926430374185
 . . . . . . . . [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 2019-07-26 15:58:59 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-24 15:58:59 +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 '42316.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 740431475810248612014963071998704282769474074012071112387665962614819940053777133786468703481551259069220580911171515969411170035408372040759144548048737754757549033442517077146563359960646358886605196293103306603156924445824031302483333072849870078768680153700537387979888605222925901684891804723661268382540698227424201000145009697995359142918560971239743305063679152479134776121881427066871423113115482721486079716137278152427825413827831389646995082243829967662251490619219167108158122808553035235720370797430423800253270051970748380481255027267377881353007878309676346784680660520640760589313239825537621653328549093369896918387111291731751615659862523501465052671145302320641964708438115870203086873676615629774852574099517895440585162111111894201724315439494534298940230308942440228420137823341569883460565490375272617105600527814319923564786259165778034889949273588355648929601983455081356248405207810167419681631712908368743994694599636697950964509458802001800197587948489424911106468026084443496811290226627929146006790123994247097243466396448640689344458874608463981414218721716806420819342196960642915737997101517981209387646999080584717320694245023779810658640386925604373028531459270324230328165993937884573213367211833
 . . . . . . . . . . . . . . . . . . . . [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)
							0c24a19dff1b2150a2dd7bacff57197cfb628dd7
 . . . . . . . . . . . . . . . . [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 '42316.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)
							00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016c2f38b02e0000040300463044022006776602487a2854b4fc2cefd673c5a272d2bfc370050801887a37447908455f0220045ee221c96c5282ad1bf247311002e984b5e6e61b806819c43de6af1cf7ffa700760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016c2f38ae5800000403004730450220669c8360ccc469a13492c7d1459fadad0bcb006eb5e6ee7ae808fd9014381863022100b828ed12db7bc4e86cb2fa520cf0b8da6e937db1fc5737a032e22aa78cd6c025
 . . . . [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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