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

fibertelecom.com · 31.185.102.35:443

Verified

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

Subject
CN=fibertelecom.com
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-09-01T03:02:44+00:00
Expires
2026-11-30T03:02:43+00:00
Days remaining
64
Serial (hex)
069F652B5B4CD5DF97DA09003B66D53FD79C
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:fibertelecom.co.uk, DNS:fibertelecom.com, DNS:fibertelecom.de, DNS:fibertelecom.it, DNS:fibertelecom.nl, DNS:fibertelecom.org, DNS:www.fibertelecom.co.uk, DNS:www.fibertelecom.com, DNS:www.fibertelecom.de, DNS:www.fibertelecom.it, DNS:www.fibertelecom.nl, DNS:www.fibertelecom.org

SHA-256 fingerprint

5D:01:30:DE:91:AF:E8:F7:EA:57:EF:F3:B4:E9:91:BB:1F:A4:B8:5A:55:0D:95:69:E7:9E:AD:02:1B:24:85:C8
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
21:EC:1B:51:FB:69:14:D5:70:C3:95:C9:9C:0C:3D:2A:5C:04:44:58
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:fibertelecom.co.uk, DNS:fibertelecom.com, DNS:fibertelecom.de, DNS:fibertelecom.it, DNS:fibertelecom.nl, DNS:fibertelecom.org, DNS:www.fibertelecom.co.uk, DNS:www.fibertelecom.com, DNS:www.fibertelecom.de, DNS:www.fibertelecom.it, DNS:www.fibertelecom.nl, DNS:www.fibertelecom.org
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/29.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Sep 1 04:01:15.135 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:19:CB:90:0C:CE:81:63:41:81:4C:CC:39: 20:0F:86:58:38:6B:2C:05:71:41:0D:B3:95:2B:1A:0E: DA:8B:77:FD:02:21:00:A6:3B:95:43:BC:82:D3:3E:ED: 7D:FF:60:05:9C:FB:B0:BF:77:DB:E1:BA:D6:82:DA:7E: 76:0D:3B:85:F9:2A:80 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37: 92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23 Timestamp : Sep 1 04:01:13.243 2026 GMT Extensions: 00:00:05:00:3B:74:B3:49 Signature : ecdsa-with-SHA256 30:44:02:20:57:1C:3A:0C:56:43:EE:F3:60:B7:E2:6E: F5:94:44:7B:5E:91:A8:C5:B5:38:2A:07:6E:0F:EC:47: 9F:A8:18:5E:02:20:3E:10:07:9D:A6:71:79:87:8B:AF: B0:41:BC:35:2C:98:75:9F:0D:BA:34:A1:04:2B:79:65: 62:88:EB:46:33:A9
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-26T06:37:54+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
707
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-----
MIIE2jCCAsKgAwIBAgIQTr0klH4k05SALYSlL9WzGTANBgkqhkiG9w0BAQsFADAu
MQswCQYDVQQGEwJVUzENMAsGA1UEChMESVNSRzEQMA4GA1UEAxMHUm9vdCBZUjAe
Fw0yNTA5MDMwMDAwMDBaFw0yODA5MDIyMzU5NTlaMDMxCzAJBgNVBAYTAlVTMRYw
FAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQDEwNZUjIwggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQDZ0LxwBppqh84luqMerV/eeL/fXQ7mLQQv1Lnp
WKZbyvGpx6wh6AfnslAnF6ewTkcHA+gSOoBvm3Dfm06AuGiF+KRut4fAcowqnAQQ
CW98+QPP/eOv/wug7Iyk4NkOxf2I6g2f55T6nJoOTLFcukeRq80JGQEYan+dPFr9
OGUgQK2hGKgNkW87pappsOAuUJcroYhRt5uUis4qaZireiseu32gzDJNBAiKtsvd
6HX4v25bpkRNcS/B/Gtc9kVbUpD+2PLPxdei3Tim55k4tfAEXwD2qyiPTxrTNq6l
N+AMr5g2c1dNqkOTwjxeV6L5lpP1rGiYvLnRaPlOqyZRPW+5AgMBAAGjge4wgesw
DgYDVR0PAQH/BAQDAgGGMBMGA1UdJQQMMAoGCCsGAQUFBwMBMBIGA1UdEwEB/wQI
MAYBAf8CAQAwHQYDVR0OBBYEFEAVLSZ57TIgnt+ach3WMh+BDIEMMB8GA1UdIwQY
MBaAFN7nW2DQIm1AKH0/DQH+pLVStFGUMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEF
BQcwAoYWaHR0cDovL3lyLmkubGVuY3Iub3JnLzATBgNVHSAEDDAKMAgGBmeBDAEC
ATAnBgNVHR8EIDAeMBygGqAYhhZodHRwOi8veXIuYy5sZW5jci5vcmcvMA0GCSqG
SIb3DQEBCwUAA4ICAQB0ZUQWZ9/Yn9COEpo+JfecMnB0h0vwDm/M66IqXqw3LoaL
mx9lZvRTeDIS67PUeI3yCA2W6PKRD0/FE/G57lOmS+Xy5AaaL00ICGOqjNcCaMWW
8o8nevHOd4i4lqgtznE/28QwlcdJyF8yBiWHpnyjhEpmNWJURgOCOg2xpwRMBCsj
MScqYPtOhBeuYQvSwAEeTML2Ukh6uGuX4E14q65Ja8cdjF5bAldnP1eE4FBaAwsZ
G2fOqqrKV03Y85Nw2btedP1AtliQuJZs/Jo/gXxXdc7LrH3McgnpnbTiAncX7yES
hP6kzQejllqMCIt52HOjxDGWafS7Xw+DKwqmH+Eqy8dcbOuag/1AYlQoKNVK3F5q
Hh6tEDiMqQcLIibGKteE6iHo4A/bIScbzrhXUYuism42ZYzmc48FMVIH3qy4L84E
TdAH2gtxw0PAhvRVXp8HP7wfngpzsN/8xOTpeRSbM4+Qbc56G6+Bifmv6sk1ieQb
NA3wJdl4DDUuQSV8hBgx6zoI1ZSGORprDFux7c6rhc77QZMSRrEgomBeklervEve
86ylWmZ3WWHV6RLMi8xNvjd71r4EPIGgY7BZU/VPBkq+uA7Gb6mbJnFgV43uh3xy
LRFgxIAphIukwTGSMZZR+AI+Qnp0BYTWovHXozOf3H8r6hozEoT02JHn0AeTfA==
-----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
2168
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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