www.codingchallengetest.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:80:c8:f0:e6:ab:8b:97:ea:d9:64:d0:ea:c6:31:0a:8e:ff 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.codingchallengetest.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:80:c8:f0:e6:ab:8b:97:ea:d9:64:d0:ea:c6:31:0a:8e:ff
Serial Number (int): 305160097190109321499426550019789184208639
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 8e:a7:f3:39:94:ac:80:05:2e:5c:01:d8:b0:ce:8b:c0:3c:e5:d6:80
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c5:c0:74:0d:52:cf:d8:85:4f:f4:69:0f:ec:85:da:cf:91:f4:12:33
Fingerprint (sha256): b2:89:03:6a:36:5c:0a:47:12:5d:87:dc:2c:50:9d:50:d4:5a:20:b2:b3:fc:7c:77:2d:ef:f9:91:b7:58:cb:69

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.codingchallengetest.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.codingchallengetest.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.codingchallengetest.com

Other certificates including the domain name codingchallengetest.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGbjCCBVagAwIBAgISA4DI8Oari5fq2WTQ6sYxCo7/MA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMjkxNjAwMjZaFw0y
MDA0MjgxNjAwMjZaMCYxJDAiBgNVBAMTG3d3dy5jb2RpbmdjaGFsbGVuZ2V0ZXN0
LmNvbTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBANV8J/ZSGYCICi5g
L52RMNIlw+FFmxHCSEx+qEDjr8cOhekCHkwxWcNicCA+/nRT5NZY6ULe4ZCdg22s
jsbUfNB1l9O5OOqiQ6Kn2s611+k+t5qankZFnvuMFCBRPWyXea1fEIgsZkzjPOO+
EswXp5etG3Z79G342jsalHGrIxK6Bty26r/SxNTjAGV+zLHaGaDq49qXsWAfNGde
7pnqoTm67kabJkVBCzI/Dc0SegRCPvwzf3Jyy4Inu5SZO/KvIzoIbw8aI24XlrZn
cmj3HE0uyjUx60l+xUavzyjzpLuF10aTzo9d8gF2qO8BMEoul5Xyg40prCSVNkea
D+dhShAlHY7Ze1pCP7GIebq0jOWfl6Z3eunoC3Q+8AP4/Pddbxjavdz3mSaajDGM
xEeOoi8efRKfSXVBQnsr96YofIqanbe6lUzi2L8p/YfTnY+TjvXfDFKhIeX9GMZ9
Y4UwalVPVHIjB0kTSWp90qPwuKU/d5dYeku3e+J5+panRnmFg+pkqKxmA7XykcRr
FL1iSv3OmrGeDFOGH7LnguiwJqGY+qkMFRk8zoFKadr1mnNpB8492QGAYg7ukE/J
9jVbNdvEL0F4Cyr611EgGpdX0cJ3hvHLFBLDuFMSaxdm4lhLXvb1p/IAh4yd5OOr
5O4K0ZPpBbvY8xQVDV5OzoBkEr1VAgMBAAGjggJwMIICbDAOBgNVHQ8BAf8EBAMC
BaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAw
HQYDVR0OBBYEFI6n8zmUrIAFLlwB2LDOi8A85daAMB8GA1UdIwQYMBaAFKhKamME
fd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0
cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0
cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8wJgYDVR0RBB8wHYIbd3d3
LmNvZGluZ2NoYWxsZW5nZXRlc3QuY29tMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcG
CysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5
cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHcAXqdz+d9WwOe1Nkh90Eng
MnqRmgyEoRIShBh1loFxRVgAAAFv8j81EQAABAMASDBGAiEA68RReIPspXLVPthz
SIXgyLwyEn/eynKn8ypnn8lXkNcCIQCWnyxKUeaOXA/qlKFr5ZU1HIuwPkpIQ7F3
OVxDlnD3lAB1AAe3XBvlfWj/8bDGHSMVx7rmV3xXlLdq7rxhOhpp06IcAAABb/I/
NSwAAAQDAEYwRAIgF3JvqEHQNkHkwfhXfSQpQfCrl/Hbe0Yu+s2tEJuR190CIEyz
+ugM1u4qUhnDTku2ocOx8mrzy5nEt1XFs/qBoXROMA0GCSqGSIb3DQEBCwUAA4IB
AQADIeTl8hGWlpJuzx+u1K/xmvbG83W5xT5d409aWt56uiQcJlfrqi4ghg6Ds3+W
Iywt95Wk+st/8oCJXygm0dV9ZyK7OkdJye2K1vAKQadxUuGYKXqEnbr4iWq/O4XQ
iGImWxgJLjeZra/8Ag2r+6VFBnVlsFQ9cDiClAhsYqgfQe0O8JijFXaGm9mveFPM
02MBXDRXmFKyTtDyO2I3It2W/fumpg0WzPtG/4/0R7myh73AJGSdJ2rFbRFbU5uJ
p+8ibOYcSxa0xG/UVUr7ezB/WdVA2th9xZbnPMWb6nrB6uw+b/X5hXRF4sSNLgA+
IyeQd134cxycMmj4ToBzsuU/
-----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 305160097190109321499426550019789184208639
 . . . . . . . . [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 2020-01-29 16:00:26 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-28 16:00:26 +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.codingchallengetest.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 870942751747191948609425625069081200915271316418778360109955768568363046309124283147236676663085977895669675827833862392162272416082727675105176964731893026726505278171369794851659748632094225202974701074880712303435283313850114389330489625428521218609099255369371980026433324467173601625549191543708387405678935056820738987969611477227641889816232495079345791368420627447750674113122197759941696018842214382424213474314171896139100346346200475946924181363971836214453986637938876597061557935050150260330590450911049064464033188577688694683910183319511878456948834610617144463790813411448748870445653880359162248939776611362433413727386746722797971063781067283421525218521403693431364490843872452569570259462142152031660354188973830330770645676829994543315768007318907838002798544707118344393355560711597484983189007546078557918821543331265289561360664787300875509685464142851243134871030408753207450472173501117931354672779829231276887994955074681853416166874949750671616363163918433813488427540024351618208712601879873877365327397408346366895922959911654548825287765660705874516409817233483343157962051623078935437743829057108484279730256568320045590485103585964781618715127352575590136799933394711889403222447526558077526249487701
 . . . . . . . . . . . . . . . . . . . . [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)
							8ea7f33994ac80052e5c01d8b0ce8bc03ce5d680
 . . . . . . . . . . . . . . . . [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 (31 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.codingchallengetest.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)
							00f00077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016ff23f35110000040300483046022100ebc4517883eca572d53ed8734885e0c8bc32127fdeca72a7f32a679fc95790d7022100969f2c4a51e68e5c0fea94a16be595351c8bb03e4a4843b177395c439670f79400750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ff23f352c0000040300463044022017726fa841d03641e4c1f8577d242941f0ab97f1db7b462efacdad109b91d7dd02204cb3fae80cd6ee2a5219c34e4bb6a1c3b1f26af3cb99c4b755c5b3fa81a1744e
 . . . . [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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