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

1o.se · 185.205.49.48:443

Verified
The certificate expires within 30 days.

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

Subject
CN=*.1o.se
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2026-03-25T00:00:00+00:00
Expires
2026-10-06T23:59:59+00:00
Days remaining
14
Serial (hex)
02D526127A68E1CE458BD48EACA5B336
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.1o.se, DNS:1o.se

SHA-256 fingerprint

07:7F:97:1A:62:B0:81:97:99:A0:4E:F5:F6:07:DE:3A:53:4C:AA:B6:DD:8B:DE:B0:2A:67:66:DA:0D:BE:33:6B
Certificate extensions & PEM
authorityKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
BF:2D:3E:43:1A:54:0F:2F:4B:7E:DF:76:63:B8:02:67:81:0B:48:6E
subjectAltName
DNS:*.1o.se, DNS:1o.se
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.rapidssl.com CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Mar 25 09:52:23.832 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:6D:B7:49:DC:3B:92:CB:B6:DC:81:A2:3E: 0B:BE:C5:33:BE:E1:17:6D:D4:D2:08:93:4C:17:0C:CB: 68:E6:58:F8:02:21:00:BE:AE:84:E7:CC:70:E2:E9:84: C0:C2:16:01:51:F6:AD:F8:58:AA:F0:B5:AD:A9:5B:3C: 3F:84:69:A5:91:A3:3C 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 : Mar 25 09:52:23.814 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:B8:F8:E8:49:45:71:66:75:52:11:1C: 5E:6E:B6:D3:78:37:63:15:29:6A:ED:1D:EB:EA:42:C9: 75:91:B8:FB:69:02:21:00:C6:95:E4:9C:A3:B9:D5:43: B9:01:5A:34:51:D1:08:59:75:F6:06:96:D4:0F:FF:F3: B3:2A:FC:6A:73:3C:16:22 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Mar 25 09:52:23.844 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D6:46:ED:77:9A:DC:D5:49:59:F9:96: CF:9D:B7:ED:A1:2C:46:C9:21:45:C3:CB:1E:E0:D3:51: A8:4F:3A:E5:A0:02:20:6F:78:1D:A9:F6:7F:81:5F:21: 29:14:08:BF:B2:CC:AC:AB:D4:97:1F:4E:15:F0:04:5D: CB:E6:E0:6A:A7:A3:2E
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-22T16:48:16+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:33+00:00
Expires
2027-11-02T12:24:33+00:00
Days remaining
405
Serial (hex)
0B259422CED9812A15A04E99528A0EFA
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:22:E9:63:EE:53:CD:58:CC:9F:85:CD:40:BF:5F:FE:C0:09:5F:DF:1A:15:45:35:66:1C:1C:06:BC:AD:C6:9B
Certificate extensions & PEM
subjectKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.16.840.1.114412.1.2 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2
-----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 →