SSL Checker
Submit the Hostname and Port in the fields below. This checker supports SNI and STARTTLS.
Report
It's all good. We have not detected any issues.
| Hostname: | done Matches Common Name or/and SAN |
| Expired: | done No (51 days till expiration) |
| Public Key: | done We were unable to find any issues in the public key of end-entity certificate |
| Trusted: | done Yes, we were able to verify the certificate |
| Self-Signed: | done No, the end-entity certificate is not self-signed |
| Chain Issues: | done No, we were unable to detect any issues in the certificate chain sent by the server |
| Weak signatures: | done No, certificates sent by the server were not signed utilizing a weak hash function |
| OCSP Status: | done OCSP Responder returned "good" status for the end-entity certificate |
DNS Information
| Resolves To: | 151.101.1.29 |
| Reverse IP lookup: | No records found |
| Nameserver: | ns01.r9dns.net. |
| Nameserver: | ns02.r9dns.net. |
| Nameserver: | ns03.r9dns.net. |
| Nameserver: | ns04.r9dns.net. |
| Nameserver: | dns1.p10.nsone.net. |
| Nameserver: | dns2.p10.nsone.net. |
| Nameserver: | dns3.p10.nsone.net. |
| Nameserver: | dns4.p10.nsone.net. |
General Information
| Common Name: | kayak.fr |
| SANs: | DNS:kayak.fr Total number of SANs: 1 |
| Signature Algorithm: | sha256WithRSAEncryption |
| Key Type: | RSA |
| Key size: | 2048 bits |
| Serial Number: | 42988bc384168e75d5b99a285eb2c8e1bd9 |
| Not Before: | Mar 12, 2024 15:22:06 GMT |
| Not After: | Jun 10, 2024 15:22:05 GMT |
| Number of certs: | 3 |
| Revocation Status: | good |
| OCSP Stapling: | Supported |
| Server: | Varnish |
| HSTS: | Not Supported |
| HPKP: | Not Supported |
Chain Information
Certificate # 1 - Common Name: kayak.fr
Decode this certificate for verbose information → launch| Subject Common Name | kayak.fr |
| Issuer Common Name | R3 |
| Issuer Organization | Let's Encrypt |
| Not Before: | Mar 12, 2024 15:22:06 GMT |
| Not After: | Jun 10, 2024 15:22:05 GMT |
| Signature Algorithm: | sha256WithRSAEncryption |
| Serial Number: | 42988bc384168e75d5b99a285eb2c8e1bd9 |
| SHA1 Fingerprint: | A6:09:9F:12:58:D7:60:13:42:04:45:E8:95:BE:3E:C0:DC:56:9F:15 |
| MD5 Fingerprint: | EA:E3:71:0C:6B:86:87:A6:33:0C:A0:57:16:E8:D5:1D |
Certificate # 2 - Common Name: R3
Decode this certificate for verbose information → launch| In place? | Yes, this certificate directly certifies the preceding one |
| Subject Common Name | R3 |
| Subject Organization | Let's Encrypt |
| Issuer Common Name | ISRG Root X1 |
| Issuer Organization | Internet Security Research Group |
| Not Before: | Sep 04, 2020 00:00:00 GMT |
| Not After: | Sep 15, 2025 16:00:00 GMT |
| Signature Algorithm: | sha256WithRSAEncryption |
| Serial Number: | 912b084acf0c18a753f6d62e25a75f5a |
| SHA1 Fingerprint: | A0:53:37:5B:FE:84:E8:B7:48:78:2C:7C:EE:15:82:7A:6A:F5:A4:05 |
| MD5 Fingerprint: | E8:29:E6:5D:7C:43:07:D6:FB:C1:3C:17:9E:03:7A:36 |
Certificate # 3 - Common Name: ISRG Root X1
Decode this certificate for verbose information → launch| In place? | Yes, this certificate directly certifies the preceding one |
| Subject Common Name | ISRG Root X1 |
| Subject Organization | Internet Security Research Group |
| Issuer Common Name | DST Root CA X3 |
| Issuer Organization | Digital Signature Trust Co. |
| Not Before: | Jan 20, 2021 19:14:03 GMT |
| Not After: | Sep 30, 2024 18:14:03 GMT |
| Signature Algorithm: | sha256WithRSAEncryption |
| Serial Number: | 4001772137d4e942b8ee76aa3c640ab7 |
| SHA1 Fingerprint: | 93:3C:6D:DE:E9:5C:9C:41:A4:0F:9F:50:49:3D:82:BE:03:AD:87:BF |
| MD5 Fingerprint: | C1:E1:FF:07:F9:F6:88:49:82:74:D1:A1:80:53:EA:BF |
OpenSSL Handshake
depth=2 C = US, O = Internet Security Research Group, CN = ISRG Root X1
verify return:1
depth=1 C = US, O = Let's Encrypt, CN = R3
verify return:1
depth=0 CN = kayak.fr
verify return:1
CONNECTED(00000003)
OCSP response:
======================================
OCSP Response Data:
OCSP Response Status: successful (0x0)
Response Type: Basic OCSP Response
Version: 1 (0x0)
Responder Id: C = US, O = Let's Encrypt, CN = R3
Produced At: Apr 14 10:03:00 2024 GMT
Responses:
Certificate ID:
Hash Algorithm: sha1
Issuer Name Hash: 48DAC9A0FB2BD32D4FF0DE68D2F567B735F9B3C4
Issuer Key Hash: 142EB317B75856CBAE500940E61FAF9D8B14C2C6
Serial Number: 042988BC384168E75D5B99A285EB2C8E1BD9
Cert Status: good
This Update: Apr 14 10:03:00 2024 GMT
Next Update: Apr 21 10:02:58 2024 GMT
Signature Algorithm: sha256WithRSAEncryption
a0:06:17:9b:eb:07:ba:47:3a:06:91:2e:6e:a5:13:d0:9d:4b:
2c:84:ab:ee:fa:55:81:22:1f:38:df:31:6c:5d:16:2f:b6:82:
24:f3:fa:14:c5:cb:79:f3:23:52:db:c9:55:1c:b1:34:93:ce:
29:a9:7c:a5:95:50:a4:1d:d1:61:56:a1:3e:97:c1:2b:2b:93:
1a:cb:dd:41:68:7f:27:29:ff:59:71:8a:79:12:9b:d1:ca:eb:
9e:0b:a5:bb:bb:ad:6b:d8:43:24:69:d2:97:67:f4:76:5e:b3:
54:0a:72:55:97:9c:c2:2b:b0:ae:92:fc:01:62:31:f4:5d:d7:
af:22:23:f6:bd:4a:d3:b6:5b:bf:ab:02:17:74:0b:a4:2d:e8:
b1:55:eb:24:3c:0f:61:1c:29:55:2a:5a:15:78:d0:d3:88:7e:
0d:b4:1e:d2:ab:00:0c:88:99:0e:f4:4e:2a:5d:4e:9d:71:54:
a0:11:0a:47:2c:50:ba:fd:7d:71:63:af:1c:e3:ca:17:43:bf:
ca:f1:dc:80:e8:1c:1d:f7:0d:14:dc:76:45:e5:d7:36:30:f0:
7f:ae:80:ec:35:71:65:68:ce:2a:38:b3:13:39:50:b1:5c:c9:
21:b4:28:88:df:49:cb:43:ea:6c:e1:63:36:06:d4:9c:d4:e6:
c1:f7:3d:b5
======================================
---
Certificate chain
0 s:CN = kayak.fr
i:C = US, O = Let's Encrypt, CN = R3
-----BEGIN CERTIFICATE-----
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MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
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vnmq8uLEVxs/hsDt+8RVUdUjW9DgsjeJvxO1ZCYhy2EDc+WylStL5P2KaCCYeC8=
-----END CERTIFICATE-----
1 s:C = US, O = Let's Encrypt, CN = R3
i:C = US, O = Internet Security Research Group, CN = ISRG Root X1
-----BEGIN CERTIFICATE-----
MIIFFjCCAv6gAwIBAgIRAJErCErPDBinU/bWLiWnX1owDQYJKoZIhvcNAQELBQAw
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nLRbwHOoq7hHwg==
-----END CERTIFICATE-----
2 s:C = US, O = Internet Security Research Group, CN = ISRG Root X1
i:O = Digital Signature Trust Co., CN = DST Root CA X3
-----BEGIN CERTIFICATE-----
MIIFYDCCBEigAwIBAgIQQAF3ITfU6UK47naqPGQKtzANBgkqhkiG9w0BAQsFADA/
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he8Y4IWS6wY7bCkjCWDcRQJMEhg76fsO3txE+FiYruq9RUWhiF1myv4Q6W+CyBFC
Dfvp7OOGAN6dEOM4+qR9sdjoSYKEBpsr6GtPAQw4dy753ec5
-----END CERTIFICATE-----
---
Server certificate
subject=CN = kayak.fr
issuer=C = US, O = Let's Encrypt, CN = R3
---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: RSA-PSS
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 4998 bytes and written 383 bytes
Verification: OK
---
New, TLSv1.3, Cipher is TLS_AES_128_GCM_SHA256
Server public key is 2048 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 0 (ok)
---
DONE
---
Post-Handshake New Session Ticket arrived:
SSL-Session:
Protocol : TLSv1.3
Cipher : TLS_AES_128_GCM_SHA256
Session-ID: E3FD8FC5C770D7FDB85AF2812C20E9730D30CBE35BA91BFCAC27B2CB23D5F8C0
Session-ID-ctx:
Resumption PSK: 7BB7C1A65E523866F4E8F62E71AA7EB66285F9131BB5E3D26022EA0A658EB7DD
PSK identity: None
PSK identity hint: None
SRP username: None
TLS session ticket lifetime hint: 3600 (seconds)
TLS session ticket:
0000 - 97 c4 aa 7b 91 87 01 b6-4b 9b e0 4e 51 f1 d4 e3 ...{....K..NQ...
0010 - bb 64 ba 81 fe ff ac ad-1c 6e 69 b3 9b 86 f7 83 .d.......ni.....
0020 - 9b 65 64 4b a1 dd 85 e4-fd fb ad 90 e1 cd 61 31 .edK..........a1
0030 - cb 24 65 03 7d 90 fb 33-7b 9a c0 44 9d c3 a4 84 .$e.}..3{..D....
0040 - c5 6b 73 e2 6d 97 48 c9-7a 53 75 62 08 3e d3 79 .ks.m.H.zSub.>.y
0050 - 8e 67 12 50 6c 2b e0 35-90 42 7b 39 90 9c ff 9e .g.Pl+.5.B{9....
0060 - ad ac 38 93 25 fa a6 a8-82 26 ff ac 00 26 42 e8 ..8.%....&...&B.
0070 - 5c 7c 36 6e 98 48 01 f2-9e a4 ca c8 1b 45 a4 0b \|6n.H.......E..
0080 - 47 43 3c f5 f5 a4 b5 4e-38 14 22 b3 95 b5 d8 f7 GC<....N8.".....
0090 - fd 51 18 d2 26 2c 25 28-d4 9d 81 6f 8d 28 0c 86 .Q..&,%(...o.(..
Start Time: 1713610743
Timeout : 7200 (sec)
Verify return code: 0 (ok)
Extended master secret: no
Max Early Data: 8192
---
read R BLOCK