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

skylink-data-center.nl · 185.150.27.9:443

Verified

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

Subject
CN=daten.skylink-data-center.de
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-09-12T05:35:38+00:00
Expires
2026-12-11T05:35:37+00:00
Days remaining
79
Serial (hex)
06308C683397651B047426B5B9965A3E80D0
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:daten.skylink-data-center.de, DNS:skylink-data-center.com, DNS:skylink-data-center.de, DNS:skylink-data-center.nl, DNS:skylink-datacenter.com, DNS:skylink-datacenter.eu, DNS:skylink-datacenter.net, DNS:skylink-datacenter.nl, DNS:www.skylink-data-center.com, DNS:www.skylink-data-center.de, DNS:www.skylink-data-center.nl, DNS:wwww.skylink-data-center.nl

SHA-256 fingerprint

35:C8:7A:77:30:2F:E2:5D:92:E9:90:7B:09:C8:B3:6F:3E:EE:13:B8:A2:F9:AB:46:59:F1:CE:DE:7E:41:CC:0E
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
82:8D:4F:C4:69:24:89:18:07:4A:BE:3F:ED:A7:1B:22:AC:41:11:A7
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:daten.skylink-data-center.de, DNS:skylink-data-center.com, DNS:skylink-data-center.de, DNS:skylink-data-center.nl, DNS:skylink-datacenter.com, DNS:skylink-datacenter.eu, DNS:skylink-datacenter.net, DNS:skylink-datacenter.nl, DNS:www.skylink-data-center.com, DNS:www.skylink-data-center.de, DNS:www.skylink-data-center.nl, DNS:wwww.skylink-data-center.nl
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/81.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 12 06:34:08.978 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:BB:F1:2A:F2:54:64:81:54:45:F1:E5: C6:FD:0F:E7:02:85:D9:6B:B6:A0:B2:D6:30:6F:69:95: 1E:18:11:83:9C:02:20:0D:F0:14:C6:A2:48:A4:4A:FD: 6E:F3:AF:0A:8C:6F:94:D9:54:A3:B6:C5:13:26:87:8B: 87:55:2B:11:BF:0D:5A Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A8:26:CB:E3:0A:C6:35:12:46:53:3F:E0:65:F1:4F:19: D9:6E:19:08:13:C4:1D:D9:6D:79:00:B3:12:3C:55:27 Timestamp : Sep 12 06:34:09.444 2026 GMT Extensions: 00:00:05:00:31:CB:45:CD Signature : ecdsa-with-SHA256 30:45:02:21:00:B4:BF:CC:F9:9C:55:9F:EA:5D:1A:A6: 59:DD:C6:08:0A:22:17:42:2E:08:DD:70:35:BA:3F:C5: A6:55:92:FB:79:02:20:0C:AC:3A:B6:D8:39:0F:F4:CF: 53:9D:B3:F1:E0:0A:1D:75:3A:7F:44:2C:CE:91:3A:29: 70:9B:52:D4:08:BE:1E
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-22T22:10:22+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
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
711
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
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
2172
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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