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

ns1.flow.ch · 185.90.36.190:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate CN=`cpanel.abiszedv.ch' did not match expected CN=`ns1.flow.ch'

Certificate verification failed

Subject
CN=cpanel.abiszedv.ch
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-02T04:17:37+00:00
Expires
2026-12-01T04:17:36+00:00
Days remaining
61
Serial (hex)
06457E3FDCF406AF4502169E10AE22364692
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:abiszedv.ch, DNS:cpanel.abiszedv.ch, DNS:cpcalendars.abiszedv.ch, DNS:cpcontacts.abiszedv.ch, DNS:mail.abiszedv.ch, DNS:webdisk.abiszedv.ch, DNS:webmail.abiszedv.ch, DNS:www.abiszedv.ch

SHA-256 fingerprint

6B:2A:09:ED:63:0A:B1:C3:7A:71:B4:AA:47:75:BC:0C:46:17:E7:BD:D8:7B:AE:84:A1:F2:DB:13:23:CC:04:0C
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
91:39:62:83:00:2E:DB:D8:CF:C0:64:51:00:2E:54:32:2A:FE:2A:87
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:abiszedv.ch, DNS:cpanel.abiszedv.ch, DNS:cpcalendars.abiszedv.ch, DNS:cpcontacts.abiszedv.ch, DNS:mail.abiszedv.ch, DNS:webdisk.abiszedv.ch, DNS:webmail.abiszedv.ch, DNS:www.abiszedv.ch
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/19.crl
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 : Sep 2 05:16:08.169 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:F9:60:F9:5B:AE:6B:89:13:B9:A9:09: 9A:FE:C6:77:27:BA:80:FE:9E:0F:B4:2B:0A:55:D0:0A: 08:73:8E:EB:17:02:20:73:45:9D:A7:73:17:21:32:92: 37:E3:18:BB:32:D7:4B:49:6E:D4:A0:05:C0:2A:F4:1E: 34:6D:40:2C:2B:47:4C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37: 92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23 Timestamp : Sep 2 05:16:06.299 2026 GMT Extensions: 00:00:05:00:3B:EC:84:16 Signature : ecdsa-with-SHA256 30:45:02:21:00:F0:D7:AF:65:C2:4D:6A:36:91:BD:97: 36:D7:51:B1:8D:1D:2C:D5:EB:F2:04:6E:2D:91:62:C8: B8:C9:48:C9:14:02:20:31:E9:15:85:26:04:76:CB:5A: 7E:EF:70:36:E3:09:00:1C:A9:7D:6E:DE:B7:14:45:E3: 32:51:09:58:60:1D:EB
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-30T04:21:32+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
703
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
2164
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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