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

mx2.plnfilter.fi · 94.199.58.121:443

Verified

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

Subject
CN=*.plnfilter.fi
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Valid from
2025-11-20T00:00:00+00:00
Expires
2026-12-14T23:59:59+00:00
Days remaining
68
Serial (hex)
1FCEDA5A510D08E37598BA00434591C0
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.plnfilter.fi, DNS:plnfilter.fi

SHA-256 fingerprint

A4:8E:4F:D1:59:AA:D4:E6:14:07:FD:52:5E:11:8C:79:36:DA:F5:B6:0D:C2:61:D3:DC:CA:1D:05:B0:23:68:1E
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
79:01:C9:78:0D:27:4C:95:C3:BF:E1:A5:43:B4:28:24:AD:88:1C:61
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 : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Nov 20 09:34:21.630 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:CA:0E:B1:7F:C3:C2:19:89:4D:F1:92: CB:68:D6:7C:E7:EE:A8:CE:0B:27:02:D6:AE:D1:3D:0E: 92:5E:1F:B1:20:02:20:29:97:C7:53:7E:8F:6B:B8:6D: 17:1D:5C:D4:6C:FE:90:5D:ED:15:6F:05:76:0B:0E:DE: F7:11:AB:C9:82:07:66 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AF:67:88:3B:57:B0:4E:DD:8F:A6:D9:7E:F6:2E:A8:EB: 81:0A:C7:71:60:F0:24:5E:55:D6:0C:2F:E7:85:87:3A Timestamp : Nov 20 09:34:21.806 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:16:DC:FA:7E:0A:51:E6:5A:D9:0C:D6:D6: 2B:E0:04:51:E9:02:1E:EA:FD:C9:3F:7B:B5:95:93:21: 10:25:A4:34:02:20:00:84:C6:49:1F:D2:1B:FC:DB:EC: D8:F6:E7:44:11:34:36:A1:80:3B:26:27:D9:1F:D1:AE: 2F:80:51:81:C7:14 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AC:AB:30:70:6C:EB:EC:84:31:F4:13:D2:F4:91:5F:11: 1E:42:24:43:B1:F2:A6:8C:4F:3C:2B:3B:A7:1E:02:C3 Timestamp : Nov 20 09:34:21.612 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A2:63:1C:F4:F7:C1:AC:C0:EB:B9:49: F8:DD:55:30:29:83:0A:AA:2C:74:44:FB:90:4D:C3:7A: CB:87:38:61:C0:02:20:79:23:E2:1B:1F:F9:0E:06:E5: 32:36:ED:FE:FC:C2:43:4C:1E:4D:13:21:33:44:76:17: A2:67:5D:C7:15:59:F0
subjectAltName
DNS:*.plnfilter.fi, DNS:plnfilter.fi
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-07T02:59:29+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
3453
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
816
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 →