www.travelbook.de

Issued by R3

About this certificate

This digital certificate with serial number 03:94:3a:c2:c8:54:4e:27:9c:19:27:f9:ed:4b:77:60:c5:ab 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=www.travelbook.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:94:3a:c2:c8:54:4e:27:9c:19:27:f9:ed:4b:77:60:c5:ab
Serial Number (int): 311776754692086987507198035690342559303083
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 5f:dd:8c:f2:d4:ee:e9:ce:5b:b0:ec:f5:a7:1d:e8:90:96:ea:c3:e2
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): eb:02:4a:8d:85:ec:b0:74:f8:a2:45:57:c4:3b:bb:55:ae:17:38:87
Fingerprint (sha256): 1c:45:26:79:18:fc:88:d2:ca:b0:7e:ef:b3:33:db:e6:5a:a8:39:f0:70:75:26:b5:88:36:b7:ec:50:a3:b5:c0

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

Revocation information

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

Check the revocation status for certificate www.travelbook.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.travelbook.de

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

asset.travelbook.de
www.travelbook.de

Other certificates including the domain name travelbook.de

(limited to 100 certificates)
ast.myhomebook.de
travelbook.de
tortuga.cloud
cmp.axelspringer.com
data-9e4f40dc7c.travelbook.de
tortuga.cloud
*.travelbook.de
*.myhomebook.de
kmp.travelbook.de
m.travelbook.de
travelbook.de
travelbook.de
stage.travelbook.de
kmp.travelbook.de
wetter.travelbook.de
data-bb4ada6163.travelbook.de
stage.travelbook.de
cmp.autobild.de
stage.travelbook.de
travelbook.de
travelbook.de
tortuga.cloud
blogstars.travelbook.de
m.travelbook.de
image.travelbook.de
productstorybundles.travelbook.de
*.techbook.de
m.travelbook.de
data-bb4ada6163.travelbook.de
cmp.autobild.de
data-9e4f40dc7c.travelbook.de
*.myhomebook.de
*.stylebook.de
m.purmail.travelbook.de
tortuga.cloud
cmp.autobild.de
cmp.autobild.de
data-9e4f40dc7c.travelbook.de
travelbook.de
m.travelbook.de
travelbook.de
wetter.travelbook.de
escapes.travelbook.de
*.myhomebook.de
link.mailer.travelbook.de
m.travelbook.de
data-9e4f40dc7c.travelbook.de
escapes.travelbook.de
wetter.travelbook.de
escapes.travelbook.de
escapes.travelbook.de
data-bb4ada6163.travelbook.de
m.travelbook.de
travelbook.de
stage.travelbook.de
data-bb4ada6163.travelbook.de
blogstars.travelbook.de
escapes.travelbook.de
*.email.travelbook.de
www.travelbook.de
kmp.travelbook.de
stage.travelbook.de
m.travelbook.de
m.travelbook.de
travelbook.de
blogstars.travelbook.de
m.travelbook.de
travelbook.de
cmp.autobild.de
m.purmail.travelbook.de
wetter.travelbook.de
image.travelbook.de
m.travelbook.de
kmp.travelbook.de
data-bb21a2f11b.travelbook.de
escapes.travelbook.de
*.travelbook.de
travelbook.de
travelbook.de
m.travelbook.de
m.purmail.travelbook.de
*.travelbook.de
wetter.travelbook.de
productstorybundles.travelbook.de
data-bb4ada6163.travelbook.de
travelbook.de
wetter.travelbook.de
ast.myhomebook.de
stage.travelbook.de
kmp.travelbook.de
travelbook.de
escapes.travelbook.de
data-9e4f40dc7c.travelbook.de
blogstars.travelbook.de
m.travelbook.de
*.myhomebook.de
m.travelbook.de
www.travelbook.de
productstorybundles.travelbook.de
data-bb4ada6163.travelbook.de

Certificate

The complete raw certificate details for www.travelbook.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz3mAVha5qlNeSSRutF52
gZofSUykFaqYOSQzWXYSFaFelybVhuuH3+Ob1jA9e/zqJP5Y5DQkkC+QZnDxdZEE
kL/oFbA3yd8E8qphlaIRvyxd/yKe/WQOhbk1YR2LSuuazXEvKYhRD/M9bZZL9Njl
7gR17B7Yr3f4FI4eJRXJxzlt+YvqdsVnDC2ZLDWlK6qY1h0F28AncNXHKSThF8bi
xtNVeo6jtp+Atel6eEXQyzIZJaZd1ykNmKltniyzfxLym5sjHh/4lNVsNa7eD5f+
9zIa1QyLPWwFRuKaHga7gxp/E7g7X+PeLPseNGVZTCvzKsxiR+TixIUy6OYWgjHU
UwIDAQAB
-----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 311776754692086987507198035690342559303083
 . . . . . . . . [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 2024-04-01 11:23:53 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-30 11:23:52 +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.travelbook.de'
 . . . . . . . . [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 26191243658760561214283726243139144770855802294432338344185614005007331035344817224464487088203186549868920270540643152645383911845318482815814038098549187939651604711489792713251718302452766772940545125675136950532487270145767134181135796457677770160064415822731568851593642616974073550155760291309433187442360875929871897856199798586521366217226752192752531498257479622266228800477857670450405373604894175250993402352565534353058157126634229135437092920492510404571848659043894470785857954138704163216965158275101466393458405307266369427586040018026557687864545607806160705595262325357517703357631408538434049004627
 . . . . . . . . . . . . . . . . . . . . [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)
							5fdd8cf2d4eee9ce5bb0ecf5a71de89096eac3e2
 . . . . . . . . . . . . . . . . [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 (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'asset.travelbook.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.travelbook.de'
 . . . . . . . . . . . . . . . . [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)
							00f00076003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018e999db42a0000040300473045022061871cff7eb286548ba8cf0b747010c387aba30f748c8adacd09e9f53101f851022100bf543b223fa63636c9a3bb6b06ecb35d478d644c2fdddafd018a0b063c613847007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018e999db4360000040300473045022100b8be5a4d2e1378327877bfc541adfe255625c02645a2e957e07e3caacd656250022056bbe177310f097785b164c59b28bc436d03c90c367440cc40db02df064077f1
 . . . . [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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