gymbook.com

Issued by R3

About this certificate

This digital certificate with serial number 04:0e:49:1a:80:8b:8e:e3:aa:d0:02:de:47:15:17:ae:f9:78 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=gymbook.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:0e:49:1a:80:8b:8e:e3:aa:d0:02:de:47:15:17:ae:f9:78
Serial Number (int): 353310268114550111800314834469772875200888
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: bd:47:f7:6c:31:75:b7:2b:dc:97:cf:6c:a8:f1:1f:fe:c5:48:b7:7c
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 2e:c4:4f:22:0a:90:2c:b8:2b:a3:0f:bb:c2:d8:10:95:d8:80:64:91
Fingerprint (sha256): 44:7a:bb:ec:73:3b:89:33:32:59:69:fb:15:b6:47:4f:19:39:e1:1c:42:5a:a5:1e:8b:6a:99:0e:99:ba:22:26

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate gymbook.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for gymbook.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

gymbook.com
www.gymbook.com

Other certificates including the domain name gymbook.com

(limited to 100 certificates)
gymbook.com
www.maybejustnothing.com
gymbook.com
sagaexchange.com
www.gymbook.com
pointnepean.com
ymeil.com

Certificate

The complete raw certificate details for gymbook.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 353310268114550111800314834469772875200888
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-30 19:02:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-28 19:02:10 +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 'gymbook.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 791826189959639081150792569431219837148725157818719255728733091104162975266673136629719628591362833199919972905601309958099779086161040831481065092796242579636200382736949930022720619720734203516329631709891709285971575114230563754894195985274387434068262428217766966730577072578716089797336702367045174959873348596382909393347418626794229370453853996679744057571559448815371915184922464136876906665224445734993793403782165634502824070794974424793360452640743307879779763168423806219604640636415340577827292018339482194039532667940335121161666544020216423166853938345256401207326524563751112699820180938595354096126443742679296584217881736871008368823915202993800736754510381805700199822448603396338067838781933630981784281269422801017288729167959473109862759515268098812765856439675268037441238429078878370749642766856366797481060169665726202873244173424555690847394249801941787096542036067722600692633278720914898079817838834763448880426970788886593682108578703951345090068120410712583694066638446319868629238677797463463547067132582366531474475390844228750987643099587241846017073605287648918771493893881346555140915341114056023741788253486963719968892126500771827646689048085352888897684870384536834429702795939386933228638191659
 . . . . . . . . . . . . . . . . . . . . [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)
							bd47f76c3175b72bdc97cf6ca8f11ffec548b77c
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 'gymbook.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.gymbook.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c21d3185d0000040300473045022100e31a2533c8666f6251207eb275fa1f2e921e55b32f99f37b7a8151ee48b466b502204d27f6fead3bd060799fe9e25849f556bd3c59b105d6cbaf418833ace1e1835000770076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018c21d319010000040300483046022100f246ac04e0426d12886e007eb405095b85cc333cff75651d87f4ba649d0d3739022100b3570ca27dff962da902d88ce274c0b12adcee0a28d7ecd438f549a41da63660
 . . . . [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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