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 (45 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.es |
SANs: | DNS:kayak.es Total number of SANs: 1 |
Signature Algorithm: | sha256WithRSAEncryption |
Key Type: | RSA |
Key size: | 2048 bits |
Serial Number: | 4821ca77846731ec626caab9448c0674a7f |
Not Before: | Mar 12, 2024 15:15:33 GMT |
Not After: | Jun 10, 2024 15:15:32 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.es
Decode this certificate for verbose information → launchSubject Common Name | kayak.es |
Issuer Common Name | R3 |
Issuer Organization | Let's Encrypt |
Not Before: | Mar 12, 2024 15:15:33 GMT |
Not After: | Jun 10, 2024 15:15:32 GMT |
Signature Algorithm: | sha256WithRSAEncryption |
Serial Number: | 4821ca77846731ec626caab9448c0674a7f |
SHA1 Fingerprint: | A8:1A:0D:35:7F:A5:C3:5D:04:1E:4A:A4:9C:6E:A7:F9:CA:2B:92:91 |
MD5 Fingerprint: | 48:00:64:E9:97:21:D5:47:CF:7B:1D:B1:A3:56:91:37 |
Certificate # 2 - Common Name: R3
Decode this certificate for verbose information → launchIn 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 → launchIn 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.es 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 22 22:27:00 2024 GMT Responses: Certificate ID: Hash Algorithm: sha1 Issuer Name Hash: 48DAC9A0FB2BD32D4FF0DE68D2F567B735F9B3C4 Issuer Key Hash: 142EB317B75856CBAE500940E61FAF9D8B14C2C6 Serial Number: 04821CA77846731EC626CAAB9448C0674A7F Cert Status: good This Update: Apr 22 22:27:00 2024 GMT Next Update: Apr 29 22:26:58 2024 GMT Signature Algorithm: sha256WithRSAEncryption 20:33:52:d9:c1:47:3d:25:a3:45:46:7f:27:b7:dc:03:2b:82: 5a:cd:cd:f3:c5:30:69:43:a9:f3:43:2b:65:b4:dc:81:2f:33: 26:a0:95:b3:22:49:ee:0f:1a:a9:2e:ab:f1:5c:fa:1b:5e:a6: d7:b7:47:e5:c5:48:fe:15:e8:1d:09:44:7a:17:41:5d:d0:f4: 52:5a:28:55:2f:7d:f5:b6:99:26:0e:9b:e8:89:9d:79:49:a8: 94:dc:5b:07:9a:9b:fd:fd:05:03:ea:a0:6e:22:39:87:9b:2f: 89:58:76:80:da:fc:b7:77:74:73:b7:97:43:e6:23:51:2b:da: 95:b5:62:e2:ab:f5:39:fe:0e:52:5e:01:fc:7c:2e:2d:e1:74: be:f8:a9:81:c0:cd:2e:32:3c:d1:df:68:7c:7f:6f:ca:23:60: 0c:e9:41:ad:2d:37:22:70:66:08:b2:ea:48:a7:37:27:5c:88: fb:fd:e8:3a:12:f3:92:ad:79:4e:2b:78:fc:e3:52:79:b1:9c: ab:4b:33:31:1f:a5:ed:2b:b3:11:64:20:61:ae:1d:ab:f0:c3: 9c:a8:4d:be:dc:73:93:f8:8a:da:22:2b:0f:a7:b6:e5:4a:6f: 3e:d2:d9:42:3e:4c:02:fd:97:c9:7d:35:70:63:ab:94:f3:90: a1:3a:4a:02 ====================================== --- Certificate chain 0 s:CN = kayak.es i:C = US, O = Let's Encrypt, CN = R3 -----BEGIN CERTIFICATE----- MIIE3TCCA8WgAwIBAgISBIIcp3hGcx7GJsqrlEjAZ0p/MA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDAzMTIxNTE1MzNaFw0yNDA2MTAxNTE1MzJaMBMxETAPBgNVBAMT CGtheWFrLmVzMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvOn+ZALH XJEkc4oqyBjeGGf9TgNn+N+ivALF1a2mcbpkFFbquysWGJ75AAGtN27JAiL9V1/s TzbjWuXbfFMKnKMXHNgcCl7zLDslYzdrMXt2nQLEyBiuUaBFeboB502lW2K+KHFx cmwGJl69PRPw5MpVcOSexXi0fZqZ2TYryMUKL3AY0N7+RiZJU/3XKpfRny42HQTy f4sMNKt6q4GJx0onjaFmGFAFhqZLRetrpM5psYm+l2LZSwrVqv3mbmmK63wUX+7p LmlJt6eGd4KRGGVvBRv7APUUD1l4wm/QS1Rn24WFX8wV4lZOfEALUoOaSCUjWTIc WFJU8VDj/GLwbQIDAQABo4ICCjCCAgYwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW MBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQm Yst0/YHL8BKN0ti5WEnj9ih5GzAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDmH6+d ixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5vLmxl bmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzATBgNV HREEDDAKgghrYXlhay5lczATBgNVHSAEDDAKMAgGBmeBDAECATCCAQQGCisGAQQB 1nkCBAIEgfUEgfIA8AB2ADtTd3U+LbmAToswWwb+QDtn2E/D9Me9AA0tcm/h+tQX AAABjjNyoBEAAAQDAEcwRQIgPf+lozynojRecMW3LK4s4oatVbR6ckNHX61SthAZ qckCIQCT8qV84xOmZumV1HWnFwy7wCmlEE/VtXto/8fpEHaNsAB2AHb/iD8KtvuV UcJhzPWHujS0pM27KdxoQgqf5mdMWjp0AAABjjNyoEYAAAQDAEcwRQIhAIhxiJpK 0ytKK/NFkPmMaqVrshWNxhqC09LMt51ZZjS+AiAebBmLtSmduCQ8OzCS4ZRuhoWr vE7w/n8EWm2nZvpfmDANBgkqhkiG9w0BAQsFAAOCAQEAucXaZStk/vnuUzbTbcSo iZD5rR55Z6MarhNvVaUeDtE7tImvHNrF6Z0ZgUuJJFS7xiCw7U34XmcKlqU2d3RR KPG0sSyOGPjp3x+gcTeiqkJQy0Yat0byEddS+pq2uDCHhFFotY6Ym6FcQ4wAJhjk kVkIIBe0RxdzmbcFxsi7tEC0KjfXODrOjeh8vBRYXIEaju9Un8K5WPDKjF4EjaG6 V/Hx8cbEYTz8C5TDE+ojc+JEWoAPslk81vKG3e+ffjuS8v4FgjgQyxrPpyzJdD9A yZ57oP2aQC3Nna0C/7ADEyYeOca8zACCsyy1Hhp4xWZc7O1pK3j7qUwSQA4MrxR3 PQ== -----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 TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMjAwOTA0MDAwMDAw WhcNMjUwOTE1MTYwMDAwWjAyMQswCQYDVQQGEwJVUzEWMBQGA1UEChMNTGV0J3Mg RW5jcnlwdDELMAkGA1UEAxMCUjMwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK AoIBAQC7AhUozPaglNMPEuyNVZLD+ILxmaZ6QoinXSaqtSu5xUyxr45r+XXIo9cP R5QUVTVXjJ6oojkZ9YI8QqlObvU7wy7bjcCwXPNZOOftz2nwWgsbvsCUJCWH+jdx sxPnHKzhm+/b5DtFUkWWqcFTzjTIUu61ru2P3mBw4qVUq7ZtDpelQDRrK9O8Zutm NHz6a4uPVymZ+DAXXbpyb/uBxa3Shlg9F8fnCbvxK/eG3MHacV3URuPMrSXBiLxg Z3Vms/EY96Jc5lP/Ooi2R6X/ExjqmAl3P51T+c8B5fWmcBcUr2Ok/5mzk53cU6cG /kiFHaFpriV1uxPMUgP17VGhi9sVAgMBAAGjggEIMIIBBDAOBgNVHQ8BAf8EBAMC AYYwHQYDVR0lBBYwFAYIKwYBBQUHAwIGCCsGAQUFBwMBMBIGA1UdEwEB/wQIMAYB Af8CAQAwHQYDVR0OBBYEFBQusxe3WFbLrlAJQOYfr52LFMLGMB8GA1UdIwQYMBaA FHm0WeZ7tuXkAXOACIjIGlj26ZtuMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEFBQcw AoYWaHR0cDovL3gxLmkubGVuY3Iub3JnLzAnBgNVHR8EIDAeMBygGqAYhhZodHRw Oi8veDEuYy5sZW5jci5vcmcvMCIGA1UdIAQbMBkwCAYGZ4EMAQIBMA0GCysGAQQB gt8TAQEBMA0GCSqGSIb3DQEBCwUAA4ICAQCFyk5HPqP3hUSFvNVneLKYY611TR6W PTNlclQtgaDqw+34IL9fzLdwALduO/ZelN7kIJ+m74uyA+eitRY8kc607TkC53wl ikfmZW4/RvTZ8M6UK+5UzhK8jCdLuMGYL6KvzXGRSgi3yLgjewQtCPkIVz6D2QQz CkcheAmCJ8MqyJu5zlzyZMjAvnnAT45tRAxekrsu94sQ4egdRCnbWSDtY7kh+BIm lJNXoB1lBMEKIq4QDUOXoRgffuDghje1WrG9ML+Hbisq/yFOGwXD9RiX8F6sw6W4 avAuvDszue5L3sz85K+EC4Y/wFVDNvZo4TYXao6Z0f+lQKc0t8DQYzk1OXVu8rp2 yJMC6alLbBfODALZvYH7n7do1AZls4I9d1P4jnkDrQoxB3UqQ9hVl3LEKQ73xF1O yK5GhDDX8oVfGKF5u+decIsH4YaTw7mP3GFxJSqv3+0lUFJoi5Lc5da149p90Ids hCExroL1+7mryIkXPeFM5TgO9r0rvZaBFOvV2z0gp35Z0+L4WPlbuEjN/lxPFin+ HlUjr8gRsI3qfJOQFy/9rKIJR0Y/8Omwt/8oTWgy1mdeHmmjk7j1nYsvC9JSQ6Zv MldlTTKB3zhThV1+XWYp6rjd5JW1zbVWEkLNxE7GJThEUG3szgBVGP7pSWTUTsqX 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/ MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT DkRTVCBSb290IENBIFgzMB4XDTIxMDEyMDE5MTQwM1oXDTI0MDkzMDE4MTQwM1ow TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwggIiMA0GCSqGSIb3DQEB AQUAA4ICDwAwggIKAoICAQCt6CRz9BQ385ueK1coHIe+3LffOJCMbjzmV6B493XC ov71am72AE8o295ohmxEk7axY/0UEmu/H9LqMZshftEzPLpI9d1537O4/xLxIZpL wYqGcWlKZmZsj348cL+tKSIG8+TA5oCu4kuPt5l+lAOf00eXfJlII1PoOK5PCm+D LtFJV4yAdLbaL9A4jXsDcCEbdfIwPPqPrt3aY6vrFk/CjhFLfs8L6P+1dy70sntK 4EwSJQxwjQMpoOFTJOwT2e4ZvxCzSow/iaNhUd6shweU9GNx7C7ib1uYgeGJXDR5 bHbvO5BieebbpJovJsXQEOEO3tkQjhb7t/eo98flAgeYjzYIlefiN5YNNnWe+w5y sR2bvAP5SQXYgd0FtCrWQemsAXaVCg/Y39W9Eh81LygXbNKYwagJZHduRze6zqxZ Xmidf3LWicUGQSk+WT7dJvUkyRGnWqNMQB9GoZm1pzpRboY7nn1ypxIFeFntPlF4 FQsDj43QLwWyPntKHEtzBRL8xurgUBN8Q5N0s8p0544fAQjQMNRbcTa0B7rBMDBc SLeCO5imfWCKoqMpgsy6vYMEG6KDA0Gh1gXxG8K28Kh8hjtGqEgqiNx2mna/H2ql PRmP6zjzZN7IKw0KKP/32+IVQtQi0Cdd4Xn+GOdwiK1O5tmLOsbdJ1Fu/7xk9TND TwIDAQABo4IBRjCCAUIwDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAQYw SwYIKwYBBQUHAQEEPzA9MDsGCCsGAQUFBzAChi9odHRwOi8vYXBwcy5pZGVudHJ1 c3QuY29tL3Jvb3RzL2RzdHJvb3RjYXgzLnA3YzAfBgNVHSMEGDAWgBTEp7Gkeyxx +tvhS5B1/8QVYIWJEDBUBgNVHSAETTBLMAgGBmeBDAECATA/BgsrBgEEAYLfEwEB ATAwMC4GCCsGAQUFBwIBFiJodHRwOi8vY3BzLnJvb3QteDEubGV0c2VuY3J5cHQu b3JnMDwGA1UdHwQ1MDMwMaAvoC2GK2h0dHA6Ly9jcmwuaWRlbnRydXN0LmNvbS9E U1RST09UQ0FYM0NSTC5jcmwwHQYDVR0OBBYEFHm0WeZ7tuXkAXOACIjIGlj26Ztu MA0GCSqGSIb3DQEBCwUAA4IBAQAKcwBslm7/DlLQrt2M51oGrS+o44+/yQoDFVDC 5WxCu2+b9LRPwkSICHXM6webFGJueN7sJ7o5XPWioW5WlHAQU7G75K/QosMrAdSW 9MUgNTP52GE24HGNtLi1qoJFlcDyqSMo59ahy2cI2qBDLKobkx/J3vWraV0T9VuG WCLKTVXkcGdtwlfFRjlBz4pYg1htmf5X6DYO8A4jqv2Il9DjXA6USbW1FzXSLr9O he8Y4IWS6wY7bCkjCWDcRQJMEhg76fsO3txE+FiYruq9RUWhiF1myv4Q6W+CyBFC Dfvp7OOGAN6dEOM4+qR9sdjoSYKEBpsr6GtPAQw4dy753ec5 -----END CERTIFICATE----- --- Server certificate subject=CN = kayak.es 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: DA92A9C3EEBB72E3F142D8B155C3DF60BF44D0BCB4A1DB47DDB2BF78A4295658 Session-ID-ctx: Resumption PSK: DC3CFB9062D8A4A1479A1742B1DDF6398E08B91CC5EF84BC4C213406C8DF90B8 PSK identity: None PSK identity hint: None SRP username: None TLS session ticket lifetime hint: 3600 (seconds) TLS session ticket: 0000 - 4c da 7e 3a 7d 70 8e d6-f7 f1 ff 41 6f 14 d9 a0 L.~:}p.....Ao... 0010 - 80 38 f4 5e 89 e5 da 10-a9 ed 13 24 99 e7 ba 3a .8.^.......$...: 0020 - 04 c6 c3 16 77 80 bf e5-67 a8 ca 3c 13 29 b7 79 ....w...g..<.).y 0030 - d8 86 38 3c 6a 44 f6 c7-49 9f 57 61 d4 1f 16 8e ..8<jD..I.Wa.... 0040 - 69 e8 f2 47 a5 18 fa 44-bb 06 0a e9 1b a1 d5 f2 i..G...D........ 0050 - f9 92 67 f0 f8 c2 c6 94-bd c7 b7 a5 6b 7d 97 ea ..g.........k}.. 0060 - 21 3a 55 b0 71 66 63 d5-e8 61 b9 9d 16 c5 f2 0b !:U.qfc..a...... 0070 - a4 24 c2 c1 fb 67 c3 7f-84 c0 66 b4 d6 6e 9a e9 .$...g....f..n.. 0080 - a3 1f 4c 30 ec 82 be 46-1c 82 6f 17 0d 61 1b ff ..L0...F..o..a.. 0090 - ba 9d 2f ca f9 1e 33 ae-a3 da 99 7f 89 de 37 11 ../...3.......7. Start Time: 1714123284 Timeout : 7200 (sec) Verify return code: 0 (ok) Extended master secret: no Max Early Data: 8192 --- read R BLOCK