mystudy.fit

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:78:5f:72:fc:e7:53:86:ca:61:99:b8:04:72:75:56:b1:3e was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=mystudy.fit

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:78:5f:72:fc:e7:53:86:ca:61:99:b8:04:72:75:56:b1:3e
Serial Number (int): 389409901468489818048985514192071860597054
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: d5:96:1c:a8:e9:49:cb:ba:bb:49:a9:9b:8a:db:ea:86:b2:78:c9:43
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 53:2f:6f:9e:74:63:6a:6d:8c:ee:f9:03:e7:c1:68:6e:6a:39:e2:04
Fingerprint (sha256): 4f:00:2c:57:5e:4e:55:83:ee:f6:99:14:e3:10:fb:1b:39:20:ba:1d:9c:ab:70:d0:2e:c3:45:66:8b:c4:81:d5

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 mystudy.fit

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mystudy.fit

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

mystudy.fit
www.mystudy.fit

Other certificates including the domain name mystudy.fit

(limited to 100 certificates)
demo.mystudy.fit
demo.mystudy.fit
demo.mystudy.fit
demo.mystudy.fit
mystudy.fit
demo.mystudy.fit
demo.mystudy.fit
mystudy.fit
mystudy.fit
demo.mystudy.fit
mystudy.fit
demo.mystudy.fit
demo.mystudy.fit
demo.mystudy.fit
demo.mystudy.fit

Certificate

The complete raw certificate details for mystudy.fit in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmyYrsDQN7VHzxPtQEvpg
abswEkg2Fwfu1BtYLZIIsj5mSZsd/hWDAPsdMUsKhErvgJ8wgc/FWeQTSsp0AFYA
DVE2JKjn2L3vYMnTUFZ5t1LF1a//s1WjAyDdlFlVOq/vaoOD8M4/FSYOsSytkXgX
h4HROQh0WbIat0tpN/8x4a4//QrnXEZrKZYjw2QNIW5XZkPyKBAMRlrTvM8KBqIp
20NuAecOHaf4smkbXkyTNmfR4LGiDXIP6V47UEWOU+596c1XEc+SgAQLCaZHgs/L
43jcLl2Wtm/zcbW28PtT+Lm9Z3Gvub4E3YFpAhk3hmExIACjUkajSRbclsf/RwO6
CwIDAQAB
-----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 389409901468489818048985514192071860597054
 . . . . . . . . [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 2020-04-08 12:00:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-07-07 12:00:24 +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 'mystudy.fit'
 . . . . . . . . [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 19585759922432682125140606441577599834097902822079859692630265559900615073066905567638737103509477313273545156578690608243949017423050079132974657846969227150418953676758167050881019153552308978293489705731732426747492226376692564714489302694247462167059431497343741588421127804144822944966906151953646607281048374881742550110300382652447747003230542137421208249941838088432372259552187844651608061267504490167449076952156412126309597273429732888151808447053993889998897805877807165522405002800334375931762497436400452591271090072889786553280638697940477545292554017416990907342132468579098882841901801388183260477963
 . . . . . . . . . . . . . . . . . . . . [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)
							d5961ca8e949cbbabb49a99b8adbea86b278c943
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mystudy.fit'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.mystudy.fit'
 . . . . . . . . . . . . . . . . [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)
							00ef00750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000017159e09c7a0000040300463044022017c999ad0f3634c20b6a89a8fef5b90461f5b868dc6e8ff8fadafe68e7975fc30220318f7abc2f6a98f2f12357b4651e565c8454ab3bc83d48fcb5ce48e6fdd1680e0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000017159e09cec00000403004730450220423ffdefad5a0d5f99ed2c66e4d864a7ab548e315219575969277aede551993a022100e288604f31de05241479321c5c7c954b43a37b8a101bc0622761d64643539381
 . . . . [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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