www.wtko.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:f1:dc:d1:a9:a9:47:f6:17:15:b3:64:38:ba:32:62:71:05 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.wtko.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f1:dc:d1:a9:a9:47:f6:17:15:b3:64:38:ba:32:62:71:05
Serial Number (int): 430750712945242324974688731477984663466245
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 39:1c:f8:3e:64:bc:73:a8:f5:b2:5d:37:78:46:1e:93:da:d0:03:53
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 9c:2a:19:74:ef:08:c9:94:44:c3:b7:4b:b6:ec:23:e5:28:e8:f2:6c
Fingerprint (sha256): 76:d8:98:28:5a:50:4f:a7:61:b3:a7:d4:2e:86:f0:0d:6a:db:ea:4c:0f:b5:8b:d7:1b:18:33:ca:a4:d1:24:0b

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.wtko.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.wtko.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.wtko.com

Other certificates including the domain name wtko.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.wtko.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 430750712945242324974688731477984663466245
 . . . . . . . . [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 2019-10-12 23:34:22 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-10 23:34:22 +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.wtko.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 805824309096736871505450662837485381688690619733993584943529846262606639596970086328311446919231583377407980404886947927476888285256112592358736843303071160337488534634143556961901727765976177698542591080160650008848327790239172608407838289068622638513435963620164959487468379270444206114742351038285332962089774914732270952703726134951523133973409223021471873677965564769945372622084775391897907363749005719773327330668360444734340704117423318497200051793836338165674505128930309863333355724779063414418092095623375659983519811130934229128577806048698114407197256158656092812141630753853270485626771693500526307254676926919204396794383934568835945882235001682743614482328242297128518668983913450041289421681993730295070125884239470329506323997071366177689831491763393679493228354596292583711239143064763193426678075333814117162928359599461227812103564685743240673456725646340563206391226176358929846642675674157489192890385084227441708876234487674810579852249127581419285573175684688334995566396013000662584380303258177354397079173365219670667316715337259794765517530427347621895875385883449803679961054749741736960709499119815077986719228139963718666053163613335338706680388072996954569820898520127942171400372671625794219379035153
 . . . . . . . . . . . . . . . . . . . . [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)
							391cf83e64bc73a8f5b25d3778461e93dad00353
 . . . . . . . . . . . . . . . . [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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.wtko.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)
							00f0007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc289a1130000040300483046022100e31cbd6a2e2f002c93f22330a8fc0693ce61d5a3c8e44b73ee6c6246fee5526d022100887258f23c1643b7abcf4f9fd1b258daf06a8cee7f6d6f66b5b3dfaead76a2a60075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc289a11f000004030046304402201042c66b5ee067466031ba95c5e83415f3811a32d564f034651abcf8ae4abd2b0220673ed69868e84692bf937848c6d4d5f0f1099896c99b28bb57cbf89bbadc9301
 . . . . [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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