gymbook.com

Issued by R3

About this certificate

This digital certificate with serial number 04:19:82:46:05:c0:9d:3e:fc:72:c7:ef:95:c8:a3:40:0d:ef 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): 04:19:82:46:05:c0:9d:3e:fc:72:c7:ef:95:c8:a3:40:0d:ef
Serial Number (int): 357129366116969105187585016874975090445807
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 41:c0:04:67:03:1b:a2:bf:b9:0a:4e:6f:1b:fb:6c:14:26:32:40:ad
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 89:30:a9:d4:cb:9e:7b:e0:83:17:b9:3d:32:a3:18:fb:4c:b5:78:5a
Fingerprint (sha256): 14:ee:a7:97:ba:ce:97:ce:65:11:af:a4:2e:41:48:11:4e:98:76:cc:02:53:d5:19:1d:ce:93:ad:76:fc:fa:c9

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-----
MIIF9DCCBNygAwIBAgISBBmCRgXAnT78csfvlcijQA3vMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAzMzExNTAyMzJaFw0yNDA2MjkxNTAyMzFaMBYxFDASBgNVBAMT
C2d5bWJvb2suY29tMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAs559
xktxMa7fOEuhoQYa9ApEkYJrv+duaCJOth0UaSdiM/DUipXj8wmhdNgNA5cJSejj
mYn7PH05kpHt6W9rUihiVUhJIn+/lep5JlyIGcaeH5gRwbM+4Igtiz97qP6keU4b
dvTQclLymieUzm0xBQ51pn3NEswsB2DPE4SGgRJqKGZxmYilpK1sY2esraWihbNW
TQPi+iWSZlgVjemb7qd8LXykmaRNSqw7MVaz3plEFNZ9U93cauddic11Sbt/+pR3
dK82PCJ1ynDfGWDMRkL7rwiXca4QWkl7j/kF5J7XOEGv9VTnMCgj0P02IDTxbt26
eLEf5Bq7kLXvhyZwYtKgAbMaEs4G2BQ06L/DZ4pu9GhLeT2VGD0+BxrIeu2sfbqR
fTJTsS5djxom2ptmciOiBFPCipaUWSbJPpbDygvDr6A467EgmPF6yeK7DbkhGhHc
HmLeulCMr6KkLS1iGkT4hyJP41SnKbmjL5buoinU7RLhI+im87DZ9+0RCsndt10o
ZdLOS9GhhqPes+KKP81hhxA48pJ1rvXpRMubumbRGJDIOkTMRADOikk+fIyvcII4
b/Y+dA3WPjGQfoo8yClG4dZKoreEs8heGdAYDLXtJML4/auDdaeJwtfbngDh8/pY
+Rl2DurBIltx7DNilV1tzR8/aPA60N8ma6VzpEsCAwEAAaOCAh4wggIaMA4GA1Ud
DwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0T
AQH/BAIwADAdBgNVHQ4EFgQUQcAEZwMbor+5Ck5vG/tsFCYyQK0wHwYDVR0jBBgw
FoAUFC6zF7dYVsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUF
BzABhhVodHRwOi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9y
My5pLmxlbmNyLm9yZy8wJwYDVR0RBCAwHoILZ3ltYm9vay5jb22CD3d3dy5neW1i
b29rLmNvbTATBgNVHSAEDDAKMAgGBmeBDAECATCCAQQGCisGAQQB1nkCBAIEgfUE
gfIA8AB3AEiw42vapkc0D+VqAvqdMOscUgHLVt0sgdm7v6s52IRzAAABjpU/iSAA
AAQDAEgwRgIhANoxnoxOfYo7WaentmxJtg+7ljL0Ayfoiwah/prif4tUAiEAqimQ
BY4geOMdUquobzv5oIngIbxxrXuiJ28h6MRqz7kAdQB2/4g/Crb7lVHCYcz1h7o0
tKTNuyncaEIKn+ZnTFo6dAAAAY6VP4lXAAAEAwBGMEQCIFH8GTLKilrRrQJHfpHM
8tW86M3Ex4eUzZLdha5PZ74EAiBFbCYHGo9gejZkHv+A5Y3pENvjKaNIYtSCf4fc
gl+kozANBgkqhkiG9w0BAQsFAAOCAQEAFyIGuE11nWxdEtcEQwz9ISGUcRTrT1pp
8IiiMBs51ScV8AW5QEk6Co1O0Ns5OJpWkKhs2IA0PsvUrpohBvnc6r6xw9LAnWq8
4qq4KQ627pVJhB3It3wpTxJ0Qt0WWjdg1zemshnoUKI5FNFz/Vhlr0WkfKx2rbuJ
H6py+7A8kwCvX9wKpkvjHTZ9l/mNP0fGDWRMyYavfh6OhqdruxVfP0sQmmmJZ1Ho
m8R5DylFFilT8Nf2YHaqiyuoD791xzPrc9a5v5ElgXKzahh9d1ETcFXb7cQZWqPx
FqMiruGCbiC9nsX1LXo5C2p1H/dVpAFkTkJd4ecq+AwaUYuLxCLv8w==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAs559xktxMa7fOEuhoQYa
9ApEkYJrv+duaCJOth0UaSdiM/DUipXj8wmhdNgNA5cJSejjmYn7PH05kpHt6W9r
UihiVUhJIn+/lep5JlyIGcaeH5gRwbM+4Igtiz97qP6keU4bdvTQclLymieUzm0x
BQ51pn3NEswsB2DPE4SGgRJqKGZxmYilpK1sY2esraWihbNWTQPi+iWSZlgVjemb
7qd8LXykmaRNSqw7MVaz3plEFNZ9U93cauddic11Sbt/+pR3dK82PCJ1ynDfGWDM
RkL7rwiXca4QWkl7j/kF5J7XOEGv9VTnMCgj0P02IDTxbt26eLEf5Bq7kLXvhyZw
YtKgAbMaEs4G2BQ06L/DZ4pu9GhLeT2VGD0+BxrIeu2sfbqRfTJTsS5djxom2ptm
ciOiBFPCipaUWSbJPpbDygvDr6A467EgmPF6yeK7DbkhGhHcHmLeulCMr6KkLS1i
GkT4hyJP41SnKbmjL5buoinU7RLhI+im87DZ9+0RCsndt10oZdLOS9GhhqPes+KK
P81hhxA48pJ1rvXpRMubumbRGJDIOkTMRADOikk+fIyvcII4b/Y+dA3WPjGQfoo8
yClG4dZKoreEs8heGdAYDLXtJML4/auDdaeJwtfbngDh8/pY+Rl2DurBIltx7DNi
lV1tzR8/aPA60N8ma6VzpEsCAwEAAQ==
-----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 357129366116969105187585016874975090445807
 . . . . . . . . [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 2024-03-31 15:02:32 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-29 15:02:31 +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 732782023020844985650454406360967161224540024742665462087334242401830131389077300919355256066954380749110964421892304709002289613094465651468446507551339551537603009851117921975528399259744670570852661574145994362280042402714399236222267935014922608916319695127968250005903300675351556360294462768830182272500807141843404151581683340706727996006679132758717566102586944215739702662770319258058219331499391911105665495817562716063110103473010836124516374503947833610648014502162131781391224739544791470955501466294940455543361805268787712490167809178918243979668274048609413309972217986500337182109394496108607451043889643481490091359333364810983291183806444645892031269177629546513047950632994022845981595765083682443329369358776312476039120361052427507560864069038714918719893215271393860157650577338986731216058243943154109932712467160406774298025158640741738621306591453072300035308049386123825608023549283599994712441100792364236798162179929579895394330584745439798733388727284899423082469438586257428177103074859912108735704524437052853928482528167280801391154795703873215042738770956845294191945004986365465107864587384466977494307942608850158471182324604492236971806212696737028293931901398458920708545335527940070589152339019
 . . . . . . . . . . . . . . . . . . . . [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)
							41c00467031ba2bfb90a4e6f1bfb6c14263240ad
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018e953f89200000040300483046022100da319e8c4e7d8a3b59a7a7b66c49b60fbb9632f40327e88b06a1fe9ae27f8b54022100aa2990058e2078e31d52aba86f3bf9a089e021bc71ad7ba2276f21e8c46acfb900750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018e953f89570000040300463044022051fc1932ca8a5ad1ad02477e91ccf2d5bce8cdc4c78794cd92dd85ae4f67be040220456c26071a8f607a36641eff80e58de910dbe329a34862d4827f87dc825fa4a3
 . . . . [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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