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

netzone.ch · 212.243.197.27:443

Verified

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

Subject
CN=www.netzone.ch
Issuer
C=US O=Let's Encrypt CN=YE1
Valid from
2026-08-16T02:24:34+00:00
Expires
2026-11-14T02:24:33+00:00
Days remaining
43
Serial (hex)
067D80A04431A04C5C1D6E3F5B7727960321
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:affilizone.biz, DNS:affilizone.ch, DNS:affilizone.net, DNS:bannerzone.ch, DNS:hostcenter.net, DNS:netzon.de, DNS:netzone.at, DNS:netzone.biz, DNS:netzone.ch, DNS:netzone.fr, DNS:netzone.info, DNS:netzone.li, DNS:netzone.net, DNS:netzone.org, DNS:netzone.swiss, DNS:space4u.com, DNS:space4u.net, DNS:www.affilizone.biz, DNS:www.affilizone.ch, DNS:www.affilizone.net, DNS:www.bannerzone.ch, DNS:www.hostcenter.net, DNS:www.netzon.de, DNS:www.netzone.at, DNS:www.netzone.biz, DNS:www.netzone.ch, DNS:www.netzone.fr, DNS:www.netzone.info, DNS:www.netzone.li, DNS:www.netzone.net, DNS:www.netzone.org, DNS:www.netzone.swiss, DNS:www.space4u.net

SHA-256 fingerprint

57:DB:AA:6B:8F:81:9D:20:01:35:C5:45:75:A4:77:72:BF:9F:F9:1D:7B:40:CC:1A:B9:B3:B8:3F:8D:51:80:37
Certificate extensions & PEM
keyUsage
Digital Signature
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
78:16:E1:D7:6C:AE:E4:7B:C8:28:91:1F:F4:30:94:C7:90:68:1D:71
authorityKeyIdentifier
BB:20:CA:47:0B:FE:D7:E5:9C:F9:8F:09:2A:A3:8C:37:45:B1:BC:D8
authorityInfoAccess
CA Issuers - URI:http://ye1.i.lencr.org/
subjectAltName
DNS:affilizone.biz, DNS:affilizone.ch, DNS:affilizone.net, DNS:bannerzone.ch, DNS:hostcenter.net, DNS:netzon.de, DNS:netzone.at, DNS:netzone.biz, DNS:netzone.ch, DNS:netzone.fr, DNS:netzone.info, DNS:netzone.li, DNS:netzone.net, DNS:netzone.org, DNS:netzone.swiss, DNS:space4u.com, DNS:space4u.net, DNS:www.affilizone.biz, DNS:www.affilizone.ch, DNS:www.affilizone.net, DNS:www.bannerzone.ch, DNS:www.hostcenter.net, DNS:www.netzon.de, DNS:www.netzone.at, DNS:www.netzone.biz, DNS:www.netzone.ch, DNS:www.netzone.fr, DNS:www.netzone.info, DNS:www.netzone.li, DNS:www.netzone.net, DNS:www.netzone.org, DNS:www.netzone.swiss, DNS:www.space4u.net
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://ye1.c.lencr.org/34.crl
ct_precert_scts
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 : Aug 16 03:23:04.317 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A6:42:22:3A:08:C0:B3:60:03:D4:A8: 0A:2C:B7:C0:C9:A1:B6:42:CC:95:EE:38:AB:FF:37:96: 8C:C6:B8:1F:E7:02:20:22:44:72:FB:44:7A:DF:7D:93: 37:77:85:48:20:86:86:8F:51:F3:32:A3:24:14:A5:62: FA:BB:B9:AB:5C:F5:EC 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 16 03:23:02.899 2026 GMT Extensions: 00:00:05:00:35:28:63:7B Signature : ecdsa-with-SHA256 30:44:02:20:69:02:DF:8F:F2:71:47:CD:17:25:88:69: 4A:4D:D7:34:BE:2C:EE:AA:6E:72:2B:AF:9C:CD:F4:EC: 21:4F:D3:3D:02:20:75:D4:D4:BE:F1:C8:18:A1:74:A6: 72:10:86:69:10:7B:18:47:53:B8:61:03:45:89:79:EF: D6:EB:0A:38:11:BD
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-01T20:03:52+00:00

Server-presented chain · 3 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YE1
Issuer
C=US O=ISRG CN=Root YE
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
702
Serial (hex)
5DDD70DD31F801C85C186A7A04B80AFE
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

A2:37:2D:06:43:1E:97:16:36:5E:EE:D4:7E:C0:20:35:14:97:D1:82:FC:C0:38:E4:57:E5:81:68:A0:3C:AC:07
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
BB:20:CA:47:0B:FE:D7:E5:9C:F9:8F:09:2A:A3:8C:37:45:B1:BC:D8
authorityKeyIdentifier
A3:C8:26:5A:8E:A1:4C:D0:35:63:FC:9B:23:C8:3A:AE:56:F3:4F:56
authorityInfoAccess
CA Issuers - URI:http://ye.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://ye.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YE
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X2
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2163
Serial (hex)
872165FC34B6E5FBA8ADD5B3705FB53A
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

0F:C0:90:1C:CA:2B:AE:9E:9F:DB:B0:2D:50:D0:2F:10:94:F7:B3:66:72:08:69:91:B9:E8:97:62:6D:C4:85:F0
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
A3:C8:26:5A:8E:A1:4C:D0:35:63:FC:9B:23:C8:3A:AE:56:F3:4F:56
authorityKeyIdentifier
7C:42:96:AE:DE:4B:48:3B:FA:92:F8:9E:8C:CF:6D:8B:A9:72:37:95
authorityInfoAccess
CA Issuers - URI:http://x2.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x2.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 3

Subject
C=US O=Internet Security Research Group CN=ISRG Root X2
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
2163
Serial (hex)
6C8F1DC727C7117F7BAF853AC980F9CD
Signature
RSA-SHA256
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

EE:5F:7A:BD:69:81:BB:02:55:63:2C:D8:F4:92:83:45:1B:4B:18:84:4D:12:04:0B:44:EE:00:F0:7B:8F:E2:C6
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
7C:42:96:AE:DE:4B:48:3B:FA:92:F8:9E:8C:CF:6D:8B:A9:72:37:95
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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