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

TLSv1.2

belwue.de · 129.143.254.6:443

Verified

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

Subject
CN=www.belwue.de
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-08-28T02:43:44+00:00
Expires
2026-11-26T02:43:43+00:00
Days remaining
62
Serial (hex)
0690001F9829D0342FF401EA32ADD5FAAD6F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:belwue.de, DNS:belwue.net, DNS:hilfe.belwue.de, DNS:netzweb01.belwue.de, DNS:netzwerk.belwue.de, DNS:pm178.belwue.de, DNS:schulen.belwue.de, DNS:support.belwue.de, DNS:url.belwue.de, DNS:www.belwue.de, DNS:www.xn--belw-3ra.de, DNS:xn--belw-3ra.de

SHA-256 fingerprint

70:65:17:CF:7D:8D:B3:41:20:1B:E1:4B:C8:E2:AE:E4:52:7A:86:8C:EF:31:66:99:32:B1:95:B2:E4:03:75:14
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
29:10:7F:2E:83:9A:63:69:BD:F6:F3:F7:14:EE:48:86:C8:E0:C4:A1
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:belwue.de, DNS:belwue.net, DNS:hilfe.belwue.de, DNS:netzweb01.belwue.de, DNS:netzwerk.belwue.de, DNS:pm178.belwue.de, DNS:schulen.belwue.de, DNS:support.belwue.de, DNS:url.belwue.de, DNS:www.belwue.de, DNS:www.xn--belw-3ra.de, DNS:xn--belw-3ra.de
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/112.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Aug 28 03:42:14.768 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:93:AE:18:9E:A2:1F:17:3A:36:A0:FE: A6:C8:09:38:7A:80:2F:D2:6F:9B:D7:B0:B6:65:17:81: EC:89:AE:22:AF:02:20:2F:F9:D9:0A:1A:D5:03:5B:DF: 0E:3C:B6:00:82:1C:79:44:C6:DE:D5:F6:53:A9:39:60: 57:70:D7:7F:39:8F:42 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 : Aug 28 03:42:13.105 2026 GMT Extensions: 00:00:05:00:39:F7:4F:65 Signature : ecdsa-with-SHA256 30:44:02:20:13:07:E2:B0:49:EA:53:D6:98:2E:36:E0: EC:78:C7:F0:FC:91:94:07:98:88:24:18:43:5D:CB:C0: 93:99:72:02:02:20:24:1C:9E:2C:91:DA:07:F2:E3:89: A9:FD:58:6B:BC:92:8B:93:AA:94:15:59:EC:C6:9B:3B: B7:18:41:44:07:9E
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-09-24T19:23:51+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
709
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
2170
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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