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 (49 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: | 67.199.248.12 |
| Reverse IP lookup: | cname.bitly.com. |
| Nameserver: | dns1.p09.nsone.net. |
| Nameserver: | dns2.p09.nsone.net. |
| Nameserver: | dns3.p09.nsone.net. |
| Nameserver: | dns4.p09.nsone.net. |
| Nameserver: | ns1-42.azure-dns.com. |
| Nameserver: | ns2-42.azure-dns.net. |
| Nameserver: | ns3-42.azure-dns.org. |
| Nameserver: | ns4-42.azure-dns.info. |
General Information
| Common Name: | linkd.in |
| SANs: | DNS:linkd.in Total number of SANs: 1 |
| Signature Algorithm: | sha256WithRSAEncryption |
| Key Type: | RSA |
| Key size: | 2048 bits |
| Serial Number: | 39bc11028fac49459e112b75604f01fc89f |
| Not Before: | Mar 15, 2024 17:31:23 GMT |
| Not After: | Jun 13, 2024 17:31:22 GMT |
| Number of certs: | 2 |
| Revocation Status: | good |
| OCSP Stapling: | Not Supported |
| Server: | nginx |
| HSTS: | max-age=1209600 |
| HPKP: | Not Supported |
Chain Information
Certificate # 1 - Common Name: linkd.in
Decode this certificate for verbose information → launch| Subject Common Name | linkd.in |
| Issuer Common Name | R3 |
| Issuer Organization | Let's Encrypt |
| Not Before: | Mar 15, 2024 17:31:23 GMT |
| Not After: | Jun 13, 2024 17:31:22 GMT |
| Signature Algorithm: | sha256WithRSAEncryption |
| Serial Number: | 39bc11028fac49459e112b75604f01fc89f |
| SHA1 Fingerprint: | 75:CD:1B:2C:D9:59:37:59:44:57:04:11:AD:01:72:3F:6A:54:BA:FB |
| MD5 Fingerprint: | 16:A3:A1:E3:53:D0:BA:CF:55:07:57:94:34:C7:37:07 |
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 |
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 = linkd.in
verify return:1
CONNECTED(00000003)
OCSP response: no response sent
---
Certificate chain
0 s:CN = linkd.in
i:C = US, O = Let's Encrypt, CN = R3
-----BEGIN CERTIFICATE-----
MIIE3zCCA8egAwIBAgISA5vBECj6xJRZ4RK3VgTwH8ifMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAzMTUxNzMxMjNaFw0yNDA2MTMxNzMxMjJaMBMxETAPBgNVBAMT
CGxpbmtkLmluMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqpM2b74G
jE7biYkDImk9e15onxNEOwBkMWmemGXSTEYmNb2P/hP79ALrtc2sPos1O0C2eA0Q
waESFwK9ANssEx66eQwheqC92G+bmMflichgJUCVh3zY0EY5q2HPrJdxuuOV46ey
0n3e2eFtEM/yA0Di4+ELQTsf6Qfm3HRjWOZgEj4D1NvgQ405ltiSLZasMWftj8us
4wVkJqdwdzO77RmSDYBGclgFUaeoMlBN4QXboPBzAQWIwraEvqcs4+kIbNyHZajM
tK8wAcIGZvhZESzK8prOuIp2nVREJYdXWUWWP7tPVZoEMw6LW68RaarSiBJAJZWm
7++L5NwFezU3bQIDAQABo4ICDDCCAggwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW
MBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQJ
fe4+71OGUXyqh4Xct30WsbfDpzAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDmH6+d
ixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5vLmxl
bmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzATBgNV
HREEDDAKgghsaW5rZC5pbjATBgNVHSAEDDAKMAgGBmeBDAECATCCAQYGCisGAQQB
1nkCBAIEgfcEgfQA8gB3AEiw42vapkc0D+VqAvqdMOscUgHLVt0sgdm7v6s52IRz
AAABjkNiDuEAAAQDAEgwRgIhAJ7LaV5QFAE4/LXienxaSNj0oWSp/auYau0OWq36
D29GAiEAmL22+ZvXLpqzOQUhIH5r6s6k7M7mbFeL5oyiSbr4tVMAdwCi4r/WHt4v
Lweg1k5tN6fcZUOwxrUuotq3iviabfUX2AAAAY5DYg8BAAAEAwBIMEYCIQD5cb31
5FSSnnyVHiY6OieRWKGQGM7lxcv9oaCcxqM2zwIhAOz35c5bEjQ5vjcxgIBw2pZz
xrvT+sUVT4omXSkzVqboMA0GCSqGSIb3DQEBCwUAA4IBAQADXZgr7bLz0F+Urx3c
MpQ5ci1ugjCJeMLFVHhWAORYnmEGhR0QFSJfLG63urWaUuU34W6BKAnE2LwzUSsr
t1jAPEjN/csjHtR1RnHh4r+lj/LQQ2t0zyjQMIBd5AR3OT0DX5n2Uj28/gp2+RPi
Q4NTdKzH3fJ4egNCeu8QnE6fzWyUsm6hzXcSMoT/mLLUazU3y4fka+gHqHNMY1Ix
XHEuZIf6Dr9W5nQCSGm0hvsZZjbNuUhTFfZdEDgLj+b5+YXGXj+K3SSnFaa+I0Xh
5imBffi5/5NJtPLAsjqCNHKDgcN9RF23lEvdEBbwyExZwnqgAUBbFkAfs55GcKak
RR8R
-----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-----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-----END CERTIFICATE-----
---
Server certificate
subject=CN = linkd.in
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 3102 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: F34167B181E0D15FD774F6A300BF4399835A93E8FD4300F2144E2820FDDCE509
Session-ID-ctx:
Resumption PSK: 86DF655637B19666282F49B3B5AEB3A498609138BA77177EA345A2796034595A
PSK identity: None
PSK identity hint: None
SRP username: None
TLS session ticket lifetime hint: 604800 (seconds)
TLS session ticket:
0000 - 31 ad 89 9e 16 c1 85 e5-2e 8e d7 68 1e 49 7c 34 1..........h.I|4
0010 - c7 03 7a 6e 36 fe 16 b9-d8 2e 18 75 d0 66 80 2e ..zn6......u.f..
0020 - 9e 38 1d d1 89 25 1c 6d-de 51 6e 3a 9b 3f a9 22 .8...%.m.Qn:.?."
0030 - 5b db 38 6b c8 b7 06 58-d8 a7 a3 c3 f8 b0 b5 54 [.8k...X.......T
0040 - 4a 20 1a 9c af 86 bc de-8e fb 08 a3 c4 82 64 9c J ............d.
0050 - ad 04 b2 0d 7f 62 d1 eb-28 bf 93 5f fc 73 ea 54 .....b..(.._.s.T
0060 - 89 86 4c f7 e8 67 c2 5d-79 ..L..g.]y
Start Time: 1714032568
Timeout : 7200 (sec)
Verify return code: 0 (ok)
Extended master secret: no
Max Early Data: 0
---
read R BLOCK