www.tomstu.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:cf:d7:e2:c7:40:55:1b:6a:e4:a6:f7:6f:db:d7:99:3c:ae 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.tomstu.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:cf:d7:e2:c7:40:55:1b:6a:e4:a6:f7:6f:db:d7:99:3c:ae
Serial Number (int): 332062269267395240559724620594331545844910
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 61:8d:7b:a2:da:50:54:ff:4e:17:f5:b1:cc:fc:33:85:eb:f1:72:18
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d9:e5:8e:b0:26:53:7a:43:9f:d0:3d:f2:ff:7d:9f:bb:55:fb:c9:b9
Fingerprint (sha256): 84:81:35:14:8d:04:b0:f5:fa:5c:fb:28:bb:ae:d1:93:23:81:c9:fd:d6:c6:77:a7:e3:2f:1e:72:2c:fb:be:1d

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.tomstu.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.tomstu.net

Public Key Algorithm

RSA

Key Size

2048

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.tomstu.net

Other certificates including the domain name tomstu.net

(limited to 100 certificates)
www.tomstu.net
tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net
www.tomstu.net

Certificate

The complete raw certificate details for www.tomstu.net in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2CTSBGHv9jKvGC+ZJfea
HZ5NrLT4DEoHntuodcbetQdbFo3p9qVHlJRJguxapY9UGvOri0Yhd2DkixhIpM3+
Rqg4sYBkOKaeDorVrGIc2/gmzAFkKTR5l54xeCxn3kS975Ke6tCTCw1mK/glZQh8
qmnYAKHsr2b17fiPbjqK9x3fUCv1MLnEdd/6z9KXXMgj9ng0Db7jKM/7sYUf589Q
2T0mcQVfl7N3IVbLHrXJsfm3qtMfZEB1hgFAXv58uJOejmZUbdRsYOrXsjF4/SEU
CEB/i/eBZf4ozAf1csJlDGbAlC0lkKnnSqP5HENSbiWaXCIgfE5eXRhTLN1xQNIe
FQIDAQAB
-----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 332062269267395240559724620594331545844910
 . . . . . . . . [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 2019-08-16 15:16:22 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-14 15:16:22 +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.tomstu.net'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 27285630678450748358327067058854722198985175145493015947312298920895985561671748702274784073773411816003615148417706555782174932973843685803482173186774869610448729083547914511018049450617767719580673479088244362076302608971897346273039117687177776592460297918679453629273102035605958405680898598639413352499641616264615100097178892351961692857581699546045087268379667297777307918779278879785920578425755581178662433425694809098826703435504338098984644710787558608693166506288344023268240197355834930701105900275149266407737103861811166370801202769592273884619005203128211719995066306436929443623693844127855108300309
 . . . . . . . . . . . . . . . . . . . . [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)
							618d7ba2da5054ff4e17f5b1ccfc3385ebf17218
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.tomstu.net'
 . . . . . . . . . . . . . . . . [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)
							00f0007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016c9b3737380000040300483046022100bf3c638c002fb8be07a67c4cbb9a0416bc20db630964d6db8c942867f77bf0a0022100cc755a41d06186132a53b2e61babcb5ff68aed040602456c5b8a94ab32d6040500750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016c9b373754000004030046304402205c8dab33e1044f4537650325127cd1215acade21a3b4b46675fb2076725c7da002200098522e8d55cf9e7a51aff33e385dbb56dcd751ef1a63567071ec8d79b2c963
 . . . . [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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