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

interxion.com · 132.220.161.0:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed
The certificate has expired.

Certificate verification failed

Subject
CN=interxion.co.uk
Issuer
C=US O=Let's Encrypt CN=E7
Valid from
2025-12-12T04:39:38+00:00
Expires
2026-03-12T04:39:37+00:00
Days remaining
-202
Serial (hex)
06A3AC3A18FBA06EFA291F1F149C40A777F4
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:interxion.at, DNS:interxion.be, DNS:interxion.ch, DNS:interxion.co.uk, DNS:interxion.com, DNS:interxion.es, DNS:interxion.fr, DNS:interxion.ie, DNS:interxion.nl, DNS:interxion.se, DNS:interxion.uk, DNS:interxionlon2.co.uk, DNS:www.go.interxion.com, DNS:www.interxion.at, DNS:www.interxion.be, DNS:www.interxion.ch, DNS:www.interxion.co.uk, DNS:www.interxion.com, DNS:www.interxion.es, DNS:www.interxion.fr, DNS:www.interxion.ie, DNS:www.interxion.nl, DNS:www.interxion.se, DNS:www.interxion.uk, DNS:www.interxionlon2.co.uk

SHA-256 fingerprint

36:79:F8:09:D3:00:B4:6B:70:B1:72:BD:DE:62:F4:9B:19:2B:7F:C7:D5:97:BE:0F:72:18:4A:0D:BD:8B:A1:07
Certificate extensions & PEM
keyUsage
Digital Signature
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
7D:58:66:DD:0C:E0:AB:C9:56:28:C4:4F:33:BE:8B:33:52:71:B1:FC
authorityKeyIdentifier
AE:48:9E:DC:87:1D:44:A0:6F:DA:A2:E5:60:74:04:78:C2:9C:00:80
authorityInfoAccess
CA Issuers - URI:http://e7.i.lencr.org/
subjectAltName
DNS:interxion.at, DNS:interxion.be, DNS:interxion.ch, DNS:interxion.co.uk, DNS:interxion.com, DNS:interxion.es, DNS:interxion.fr, DNS:interxion.ie, DNS:interxion.nl, DNS:interxion.se, DNS:interxion.uk, DNS:interxionlon2.co.uk, DNS:www.go.interxion.com, DNS:www.interxion.at, DNS:www.interxion.be, DNS:www.interxion.ch, DNS:www.interxion.co.uk, DNS:www.interxion.com, DNS:www.interxion.es, DNS:www.interxion.fr, DNS:www.interxion.ie, DNS:www.interxion.nl, DNS:www.interxion.se, DNS:www.interxion.uk, DNS:www.interxionlon2.co.uk
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://e7.c.lencr.org/117.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 96:97:64:BF:55:58:97:AD:F7:43:87:68:37:08:42:77: E9:F0:3A:D5:F6:A4:F3:36:6E:46:A4:3F:0F:CA:A9:C6 Timestamp : Dec 12 05:38:08.680 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F1:35:60:FE:06:E4:EB:E5:73:B8:BE: 9E:92:B2:CB:AF:BD:D3:D0:30:CE:7E:BD:8B:80:C4:F1: F7:23:CF:6B:42:02:21:00:94:E3:96:EA:4A:FF:20:3E: 60:92:F2:91:A9:EF:BC:D1:A9:95:7B:1C:22:8D:4B:6F: 77:39:ED:E2:68:80:C2:D1 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A5:C9:78:92:5D:57:46:17:82:87:0D:D8:89:66:0B:5C: 55:64:8B:7D:00:40:F2:EC:07:68:51:D1:88:69:19:F7 Timestamp : Dec 12 05:38:08.830 2025 GMT Extensions: 00:00:05:00:2B:61:A2:3D Signature : ecdsa-with-SHA256 30:45:02:20:6F:30:64:03:C6:68:44:A6:2A:82:BB:88: 13:98:3B:39:B3:AD:8E:1B:82:9F:56:69:38:ED:87:12: A4:91:8A:F8:02:21:00:D6:EE:4A:11:E4:F8:3D:46:7B: AD:2E:DC:50:A7:B4:71:20:77:3E:D3:21:3F:24:66:6E: 32:A4:33:84:EB:F8:AC
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-29T12:23:15+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=E7
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2024-03-13T00:00:00+00:00
Expires
2027-03-12T23:59:59+00:00
Days remaining
164
Serial (hex)
AA75F1E62B8F0A220966D38BBFD4BAA1
Signature
RSA-SHA256
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

AE:B1:FD:74:10:E8:3B:C9:6F:5D:A3:C6:A7:C2:C1:BB:83:6D:1F:A5:CB:86:E7:08:51:58:90:E4:28:A8:77:0B
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
AE:48:9E:DC:87:1D:44:A0:6F:DA:A2:E5:60:74:04:78:C2:9C:00:80
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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