DNS
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

utt.edu.tt · 23.235.220.208:443

Verified

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

Subject
CN=utt.edu.tt
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-10-08T21:47:56+00:00
Expires
2027-01-06T21:47:55+00:00
Days remaining
57
Serial (hex)
058533DE2179B3967B9495B98414FD2C5F69
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.u.tt, DNS:cpanel.utt.edu.tt, DNS:cpcalendars.utt.edu.tt, DNS:cpcontacts.utt.edu.tt, DNS:u.tt, DNS:utt.edu.tt, DNS:webdisk.utt.edu.tt, DNS:whm.utt.edu.tt, DNS:www.utt.edu.tt

SHA-256 fingerprint

42:1E:90:23:E1:D4:DE:FF:B4:1E:A9:F3:9B:41:65:B2:20:F7:8E:25:B8:AE:60:1F:EF:5B:34:66:F9:A8:AE:AD
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
8B:2F:8D:34:D3:7B:8D:34:54:B2:C8:64:D7:20:15:89:F9:44:F2:1F
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:*.u.tt, DNS:cpanel.utt.edu.tt, DNS:cpcalendars.utt.edu.tt, DNS:cpcontacts.utt.edu.tt, DNS:u.tt, DNS:utt.edu.tt, DNS:webdisk.utt.edu.tt, DNS:whm.utt.edu.tt, DNS:www.utt.edu.tt
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/106.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 00:1A:5D:1A:1C:2D:93:75:B6:48:55:78:F8:2F:71:A1: AE:6E:EF:39:7D:29:7C:8A:E3:15:7B:CA:DE:E1:A0:1E Timestamp : Oct 8 22:46:26.112 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:5A:A8:95:C1:90:5D:27:8A:31:3C:25:6E: ED:5D:B1:49:91:3B:59:6C:EA:4F:93:95:41:61:55:2B: 81:12:22:42:02:20:62:16:4A:7B:45:EC:A2:E9:FD:D1: F2:A1:80:7A:F2:A1:16:58:00:FA:CC:33:E5:15:97:B6: B2:60:2A:BA:5B:8E Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Oct 8 22:46:26.267 2026 GMT Extensions: 00:00:05:00:09:BA:42:FD Signature : ecdsa-with-SHA256 30:45:02:20:5C:54:2E:AD:F4:35:E2:43:DA:C0:23:94: E0:2D:A3:2D:90:72:06:91:12:02:10:2F:6B:FF:9D:5D: A3:FD:A4:FA:02:21:00:E4:BA:94:99:F0:BB:37:E8:A6: 73:09:8F:F8:F4:3A:C0:B5:02:65:26:1B:A8:0B:02:C3: D0:84:C9:27:CE:7F:51
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-09T23:45:49+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
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
663
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
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
2124
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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-----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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