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THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

airbit.it · 213.152.202.176:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=airbit.it
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-10-23T00:13:49+00:00
Expires
2027-01-21T00:13:48+00:00
Days remaining
75
Serial (hex)
050BCFC796DF6092BAF44435CF23FA40AB26
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:airbit.it, DNS:www.airbit.it

SHA-256 fingerprint

13:6E:D1:B7:DB:25:EB:7B:CB:D3:49:08:D3:A4:AC:90:97:C0:AA:2F:81:DF:F7:6F:0A:C8:67:3E:78:71:7A:8A
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
25:1F:B7:9E:F2:A2:77:FD:B9:A2:7D:FD:39:C4:01:0C:6E:9B:08:7B
authorityKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityInfoAccess
CA Issuers - URI:http://yr1.i.lencr.org/
subjectAltName
DNS:airbit.it, DNS:www.airbit.it
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/39.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Oct 23 01:12:19.273 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A0:FA:0F:82:2C:8E:12:66:E7:0A:FA: 8B:69:48:16:01:AD:1F:F2:E0:42:12:2D:62:A8:55:0A: 3A:2B:2D:2D:25:02:21:00:B3:3C:C1:12:E7:32:84:3F: 02:6C:E7:5F:BB:F2:C4:E7:9E:4A:9C:24:54:CA:84:99: 53:02:75:D5:6F:09:61:49 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:8D:D7:91:D1:CD:05:49:ED:B6:03:55:D6: 06:B6:4F:AD:30:DB:71:FE:78:8F:0F:C7:C8:FB:C4:B1 Timestamp : Oct 23 01:12:20.740 2026 GMT Extensions: 00:00:05:00:0C:47:2A:19 Signature : ecdsa-with-SHA256 30:44:02:20:3B:55:82:09:7A:30:F5:A2:5D:F1:51:5E: 8D:5B:3D:BC:E8:65:CC:FF:33:AE:47:E4:0D:A3:22:A1: B4:2C:57:A7:02:20:19:2B:6A:32:61:D7:CD:49:AA:B3: FF:E4:77:71:ED:A1:17:18:E1:36:C9:56:30:F3:86:43: 1B:C7:2E:F9:1F:BE
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-06T07:50:22+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR1
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
666
Serial (hex)
A20253F15F2691C05DC1CE13B9BCCA4E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:94:96:34:D9:9C:D6:FD:6A:A8:0B:C0:34:FE:FA:CC:EB:19:69:FE:EF:98:65:86:71:3E:CD:BB:05:75:8D:3F
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2127
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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lYZbY8tpEroKrFB6PFGzrJIDRyts4HqvuH52RFj2zv/BAgMBAAGjgeswgegwDgYD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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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