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

rapidsys.com · 209.84.253.40:443

Verified

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

Subject
CN=rseng.net
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Valid from
2026-08-03T00:00:00+00:00
Expires
2027-02-17T23:59:59+00:00
Days remaining
122
Serial (hex)
5BE595651416B7A7B2277E207B9CE9DD
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:rseng.net, DNS:rapidsys.com, DNS:www.rapidsys.com, DNS:www.rseng.net

SHA-256 fingerprint

DE:DD:82:57:5B:E4:E7:D6:E9:45:04:63:0D:E9:14:D4:0B:78:B5:3F:BE:1F:8E:60:CF:17:FE:71:D9:DA:41:CB
Certificate extensions & PEM
authorityKeyIdentifier
68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
subjectKeyIdentifier
7A:D9:FC:4F:1A:A9:AB:F0:78:D7:26:2F:3B:93:41:D2:8C:79:6C:2A
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.7 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCADVR36.crt OCSP - URI:http://ocsp.sectigo.com
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Aug 3 15:26:01.986 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:3A:95:29:ED:6A:40:91:0A:EF:95:04:E9: 1D:62:D5:07:22:41:D8:CC:8E:E5:99:F3:8B:CB:2F:66: C2:30:55:E6:02:20:4E:EB:13:95:26:CF:FB:11:D0:40: E4:0A:38:46:03:4C:78:9C:78:78:9D:D4:4C:99:9C:0E: 1A:5D:96:8F:98:60 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Aug 3 15:26:02.783 2026 GMT Extensions: 00:00:05:00:07:A8:39:F1 Signature : ecdsa-with-SHA256 30:46:02:21:00:C1:3E:E4:CE:B0:3E:68:27:63:37:FC: 83:C2:BC:B6:C9:33:ED:17:77:63:9E:42:CC:41:6C:EE: 42:10:67:1A:4F:02:21:00:91:87:24:69:C8:C4:50:26: 7C:22:F0:BF:E9:BC:5B:55:21:DC:A6:C7:1B:5C:66:05: 20:83:6C:0E:B7:E1:8B:C2 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 : Aug 3 15:26:02.171 2026 GMT Extensions: 00:00:05:00:00:58:FE:10 Signature : ecdsa-with-SHA256 30:44:02:20:0F:DB:31:6F:4B:B4:34:8D:23:EE:4F:BB: 3F:36:57:12:89:97:73:49:A6:76:CD:20:A8:11:32:2E: C9:95:DD:A2:02:20:65:60:9E:79:B4:5B:C6:38:1F:84: 4C:6C:FF:30:F8:FA:3D:58:FD:92:B6:E9:42:38:D4:64: EB:2B:E4:8A:0B:91
subjectAltName
DNS:rseng.net, DNS:rapidsys.com, DNS:www.rapidsys.com, DNS:www.rseng.net
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-18T16:15:41+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2021-03-22T00:00:00+00:00
Expires
2036-03-21T23:59:59+00:00
Days remaining
3442
Serial (hex)
397A66CC2756362E0DAA87CA6EABE3B1
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

8C:54:C3:34:B6:6B:A4:E4:26:77:2A:F4:A3:F9:13:6C:19:A1:AE:C7:29:FD:B2:8C:53:5C:07:A5:A4:EF:22:E0
Certificate extensions & PEM
authorityKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
subjectKeyIdentifier
68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationRootR46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootR46.p7c OCSP - URI:http://ocsp.sectigo.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Issuer
C=GB ST=Greater Manchester L=Salford O=Comodo CA Limited CN=AAA Certificate Services
Valid from
2021-03-22T00:00:00+00:00
Expires
2028-12-31T23:59:59+00:00
Days remaining
805
Serial (hex)
E37CA2E9701E339C2F3FB0ED360FF90A
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CE:75:58:0B:C6:79:6D:3B:3E:A2:C3:E7:42:59:D0:D4:03:07:24:08:E9:60:C7:71:39:C2:FB:5A:3D:94:19:E4
Certificate extensions & PEM
authorityKeyIdentifier
A0:11:0A:23:3E:96:F1:07:EC:E2:AF:29:EF:82:A5:7F:D0:30:A4:B4
subjectKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.comodoca.com/AAACertificateServices.crl
authorityInfoAccess
OCSP - URI:http://ocsp.comodoca.com
-----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

Registration / WHOIS →DNS records →