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 (52 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.ch |
| SANs: | DNS:kayak.ch Total number of SANs: 1 |
| Signature Algorithm: | sha256WithRSAEncryption |
| Key Type: | RSA |
| Key size: | 2048 bits |
| Serial Number: | 44d79c882a252341d9dff6c1ef15b9db49d |
| Not Before: | Mar 12, 2024 15:21:51 GMT |
| Not After: | Jun 10, 2024 15:21:50 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.ch
Decode this certificate for verbose information → launch| Subject Common Name | kayak.ch |
| Issuer Common Name | R3 |
| Issuer Organization | Let's Encrypt |
| Not Before: | Mar 12, 2024 15:21:51 GMT |
| Not After: | Jun 10, 2024 15:21:50 GMT |
| Signature Algorithm: | sha256WithRSAEncryption |
| Serial Number: | 44d79c882a252341d9dff6c1ef15b9db49d |
| SHA1 Fingerprint: | 2C:5A:82:30:F7:54:D2:7A:69:8C:03:67:F4:33:BF:AF:35:4B:6A:51 |
| MD5 Fingerprint: | CD:C2:93:76:4F:ED:4E:12:AE:70:D3:AA:C7:09:3D:29 |
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.ch
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 17 05:04:00 2024 GMT
Responses:
Certificate ID:
Hash Algorithm: sha1
Issuer Name Hash: 48DAC9A0FB2BD32D4FF0DE68D2F567B735F9B3C4
Issuer Key Hash: 142EB317B75856CBAE500940E61FAF9D8B14C2C6
Serial Number: 044D79C882A252341D9DFF6C1EF15B9DB49D
Cert Status: good
This Update: Apr 17 05:04:00 2024 GMT
Next Update: Apr 24 05:03:58 2024 GMT
Signature Algorithm: sha256WithRSAEncryption
91:8c:72:51:3e:d3:de:53:15:83:92:f2:40:e5:8b:d7:80:cc:
d7:13:01:8f:15:b3:de:92:ac:2a:59:64:02:e0:e0:6a:7c:14:
84:29:90:ec:94:92:cd:9f:c0:85:ce:52:43:7c:5d:9e:55:01:
aa:38:a1:74:ba:f4:72:86:7c:28:b1:f2:63:77:3e:48:a5:7f:
4d:c2:52:05:9b:fa:e1:8e:1e:96:ab:ca:95:5a:dd:e0:d7:fb:
32:2e:2c:41:71:21:a6:69:83:ac:50:e1:2f:45:b5:a6:f3:09:
96:fd:2b:0c:14:4c:9a:45:db:1e:da:14:3a:9b:df:95:69:d1:
83:6c:8e:24:0b:b3:13:eb:45:f7:cc:50:57:b5:4c:53:8d:9a:
d6:f0:c2:7d:68:28:c2:df:a8:9e:d0:03:3b:6e:a6:fc:a2:7e:
b8:59:e3:ba:33:7c:5b:a4:be:a5:26:7f:86:53:62:ab:98:c9:
4c:27:4d:6c:ee:48:55:a5:b3:4c:42:2d:8d:4c:54:85:6f:28:
a7:af:f1:1c:37:ee:5d:0a:a0:ad:85:ca:9b:b1:fd:f3:60:f8:
05:fb:a2:99:5e:26:b4:3c:c6:51:e2:e7:d0:b3:a3:cf:df:a3:
aa:f5:77:83:cf:cf:40:65:0a:b0:f5:87:b8:be:13:a8:7c:0e:
84:d4:c0:c1
======================================
---
Certificate chain
0 s:CN = kayak.ch
i:C = US, O = Let's Encrypt, CN = R3
-----BEGIN CERTIFICATE-----
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Gw==
-----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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Dfvp7OOGAN6dEOM4+qR9sdjoSYKEBpsr6GtPAQw4dy753ec5
-----END CERTIFICATE-----
---
Server certificate
subject=CN = kayak.ch
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 5000 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: 36A192DB8D0C27996D2A07E05E2932FCF6FEF68272E694A48C3A40BB3B4875F5
Session-ID-ctx:
Resumption PSK: 597D7089AB5591CBC1FF2E0CD14269F28A015DBC96079B6A979924E9A69F090F
PSK identity: None
PSK identity hint: None
SRP username: None
TLS session ticket lifetime hint: 3600 (seconds)
TLS session ticket:
0000 - 99 bf 61 ed 92 44 49 8e-06 af 45 0a f4 98 90 30 ..a..DI...E....0
0010 - a7 31 94 fa cb 66 7b 3a-ec 35 19 cd 90 2d 99 0a .1...f{:.5...-..
0020 - 03 7a 33 21 0f 5e 2f 27-68 b0 93 0e a6 ba f4 f9 .z3!.^/'h.......
0030 - f5 4c ed 0c fe e5 c8 1f-fd 0a d0 31 47 2b 9d 9b .L.........1G+..
0040 - f0 8e 6e d7 27 7b 0f 10-ee 9a fb c6 0d b9 a7 a5 ..n.'{..........
0050 - 65 f1 5c 6d 8d b8 e7 41-a6 fe ba 52 8c d5 34 67 e.\m...A...R..4g
0060 - 2f 2a 14 31 2b 0e 65 77-27 bc a5 17 82 dc 3e 07 /*.1+.ew'.....>.
0070 - ef 27 90 8f 6f 38 01 d5-5a 42 e9 d1 ca c1 31 02 .'..o8..ZB....1.
0080 - 7e 12 de 2b f8 de cc 3c-22 96 8c 4f 93 8f 8a f9 ~..+...<"..O....
0090 - 17 51 98 6b 9a eb 68 4f-e5 0e 12 92 d4 3a 3c 70 .Q.k..hO.....:<p
Start Time: 1713484034
Timeout : 7200 (sec)
Verify return code: 0 (ok)
Extended master secret: no
Max Early Data: 8192
---
read R BLOCK