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

seohost.pl · 188.210.221.51:443

Verified

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

Subject
CN=*.seohost.pl
Issuer
C=GB O=The Trustico Group Ltd CN=Trustico RSA DV SSL CA 2
Valid from
2026-01-15T00:00:00+00:00
Expires
2027-02-14T23:59:59+00:00
Days remaining
135
Serial (hex)
22A67FE938FE4A588E5B03FDCD2C90D2
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.seohost.pl, DNS:seohost.pl

SHA-256 fingerprint

EC:68:E7:E5:AE:CB:EB:08:DB:61:32:AB:4C:30:41:C8:0A:DE:32:25:BD:39:14:44:BE:C9:53:32:69:10:DF:92
Certificate extensions & PEM
authorityKeyIdentifier
B3:95:67:8F:8C:26:43:AB:EE:EE:9C:10:F1:14:81:8A:E1:6B:9F:BE
subjectKeyIdentifier
8D:FD:F4:DF:E2:AA:C6:85:A2:98:BD:AA:CB:A4:5A:0E:21:15:C7:78
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/TrusticoRSADVSSLCA2.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:*.seohost.pl, DNS:seohost.pl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Jan 15 17:28:33.709 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A4:4D:26:5C:05:FE:B2:A0:E7:DA:4E: 23:09:7B:07:49:F9:A5:C4:8A:D2:8F:B0:2B:9A:D7:1B: D9:04:F3:D6:61:02:21:00:E4:40:5C:0A:B2:D1:AA:30: 5F:DF:35:3F:C7:C6:76:EB:47:1E:9E:F4:50:35:F3:0E: 2B:C4:5C:A5:41:15:20:B3 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 : Jan 15 17:28:34.186 2026 GMT Extensions: 00:00:05:00:01:78:D3:05 Signature : ecdsa-with-SHA256 30:44:02:20:08:47:CD:92:C5:00:31:05:B7:81:91:40: 12:0D:C1:61:05:2D:A2:D3:DC:BB:30:56:D3:69:9F:67: EB:85:F5:08:02:20:11:C0:FA:42:14:7F:B0:7D:1F:89: 39:71:FC:DF:B1:BC:51:3D:AB:D0:5A:4E:B3:60:85:66: 4F:42:F2:4A:00:4A 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 : Jan 15 17:28:33.648 2026 GMT Extensions: 00:00:05:00:00:0E:CF:39 Signature : ecdsa-with-SHA256 30:46:02:21:00:90:4F:CD:97:4C:23:EF:80:0B:9F:00: ED:AD:F7:09:DE:BD:7E:83:0D:03:66:0F:78:FC:9F:C1: 2A:76:39:F7:6F:02:21:00:A5:11:46:CB:00:71:EA:0C: 1A:C4:1B:17:07:2D:8D:5F:A1:CD:E3:C3:DD:57:83:23: C5:F3:CD:CC:D2:33:43:BD
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-02T18:09:08+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GB O=The Trustico Group Ltd CN=Trustico RSA DV SSL CA 2
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2025-05-14T00:00:00+00:00
Expires
2035-05-13T23:59:59+00:00
Days remaining
3145
Serial (hex)
682E53A3AEDCC7EF16C7F6C00C296467
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

0C:91:C1:AA:25:23:80:AC:B3:DE:16:23:38:BE:40:25:E0:43:0A:41:09:DD:DC:D7:D6:71:6B:2D:74:6C:69:20
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
B3:95:67:8F:8C:26:43:AB:EE:EE:9C:10:F1:14:81:8A:E1:6B:9F:BE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
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=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust RSA Certification Authority
Valid from
2021-03-22T00:00:00+00:00
Expires
2038-01-18T23:59:59+00:00
Days remaining
4126
Serial (hex)
D27FBBC1DE359E5216AD6149586099C4
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

92:F3:51:BF:3D:54:16:4D:FA:8D:D8:F9:E1:13:9D:31:50:34:97:86:48:5D:2B:9E:EC:D0:0E:29:71:C1:E6:C5
Certificate extensions & PEM
authorityKeyIdentifier
53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB
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.usertrust.com/USERTrustRSACertificationAuthority.crl
authorityInfoAccess
OCSP - URI:http://ocsp.usertrust.com
-----BEGIN CERTIFICATE-----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cMN8vJw5wLTha/eDJSNX2RKA5UnwdQ/vjescm1QotCE8/HwK/+97a3X/ix2gGQWr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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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