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

rootsecurity.be · 91.223.195.38:443

Verified

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

Subject
CN=rootsecurity.be
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-14T18:37:39+00:00
Expires
2026-12-13T18:37:38+00:00
Days remaining
78
Serial (hex)
055D12BC1877C3867C4B423D5F2FEBE48CDA
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:rootsecurity.be, DNS:rootsecurity.net, DNS:www.rootsecurity.be, DNS:www.rootsecurity.net

SHA-256 fingerprint

D3:50:C2:72:1D:24:42:95:25:E5:CD:F9:E2:EE:C1:F4:3E:22:C4:18:6C:03:7A:11:EA:8A:D9:19:5E:D1:A6:2D
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
81:A4:02:05:82:E2:59:8E:32:AB:D8:CE:CF:EE:D1:FD:EC:40:10:63
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:rootsecurity.be, DNS:rootsecurity.net, DNS:www.rootsecurity.be, DNS:www.rootsecurity.net
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/91.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Sep 14 19:36:09.224 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:99:B7:D9:68:58:FA:33:A2:ED:34:33: 26:98:98:2E:BF:A2:F8:08:01:78:0E:F1:2B:12:84:F2: 5C:0C:D4:43:C7:02:21:00:EB:41:85:8A:E1:6F:1F:1B: 05:7C:07:14:A8:FD:78:27:4D:D2:BC:E3:73:E8:3E:37: 35:D8:46:A1:41:51:15:2D Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A8:26:CB:E3:0A:C6:35:12:46:53:3F:E0:65:F1:4F:19: D9:6E:19:08:13:C4:1D:D9:6D:79:00:B3:12:3C:55:27 Timestamp : Sep 14 19:36:09.444 2026 GMT Extensions: 00:00:05:00:33:A2:3B:48 Signature : ecdsa-with-SHA256 30:44:02:20:79:58:F9:6B:D5:97:7E:CE:58:35:B9:0A: D5:A1:D4:C4:6C:FF:C1:06:A2:59:59:BF:CE:DD:43:AB: 07:15:FF:92:02:20:4A:C6:FF:AE:4F:8C:5A:42:97:43: D5:45:F9:8C:45:8C:3E:35:1A:B2:78:83:70:3A:20:EC: 3E:A7:39:D6:43:38
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-25T19:03:21+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
708
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
2169
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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