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

safnet.dk · 185.149.228.17:443

Verified

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

Subject
CN=safnet.dk
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-08-19T01:40:15+00:00
Expires
2026-11-17T01:40:14+00:00
Days remaining
51
Serial (hex)
052EA13AB61C250B15D8B7B3C66AD22BCB28
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:9300.dk, DNS:saebyantenneforening.dk, DNS:safnet.dk, DNS:www.9300.dk, DNS:www.saebyantenneforening.dk, DNS:www.safnet.dk

SHA-256 fingerprint

BB:21:D1:97:6B:0D:7F:9B:CB:84:1A:3F:4E:A9:7F:94:B5:D3:46:64:6B:10:BE:00:77:9A:87:AA:CE:17:B8:57
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
25:CC:81:56:B1:A3:6C:68:3D:CB:88:69:68:7D:75:D6:4A:52:46:FB
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:9300.dk, DNS:saebyantenneforening.dk, DNS:safnet.dk, DNS:www.9300.dk, DNS:www.saebyantenneforening.dk, DNS:www.safnet.dk
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/41.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Aug 19 02:38:45.542 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:40:5C:AD:10:5A:78:49:44:FB:CD:25:16: 55:44:C8:98:2D:FE:C6:FE:EA:B0:18:5A:9D:DA:50:E2: 19:38:F4:E4:02:21:00:8D:B4:85:CE:8A:76:90:74:42: 1E:F5:F4:76:31:DD:5E:92:BC:83:D6:FB:F7:C2:71:C1: 89:78:FD:35:40:54:AB 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 19 02:38:44.052 2026 GMT Extensions: 00:00:05:00:36:28:AC:4D Signature : ecdsa-with-SHA256 30:44:02:20:01:1F:61:D1:5F:F2:3A:38:BF:39:4C:B4: 57:73:99:5A:3D:BF:0C:82:B9:AC:E5:78:70:DF:E5:2E: A9:63:86:13:02:20:51:AA:31:48:84:99:BF:47:03:45: B1:AA:4D:F7:8E:F2:80:0C:4F:8C:05:8F:5E:CC:7C:A4: F3:31:2C:BD:6D:A2
-----BEGIN CERTIFICATE-----
MIIGRjCCBS6gAwIBAgISBS6hOrYcJQsV2LezxmrSK8soMA0GCSqGSIb3DQEBCwUA
MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD
EwNZUjIwHhcNMjYwODE5MDE0MDE1WhcNMjYxMTE3MDE0MDE0WjAUMRIwEAYDVQQD
EwlzYWZuZXQuZGswggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDkHrh2
JghRu+AV9vEWMzT+dGqt1O0f/pZIC6VvPK4Yd+WflEs4qoG3BcKSbsM/mfBIbZhX
Y+Ueh8GTTyUDpIqOV3koV8Ewp3hIKzKL3+tGgaZen/h0wd2Vh1dByMojHXqzeN+V
FavKBnxzIGFUMbvC9nQ+48f0Dt0N1aRnOB2ncY/vJ8kl3Ho++dMs1WVzfTvSiX9q
7CCvbuv7g1HcJbcLNNJpkZH5STUAKeWxpcb4grinuFehjU1jrbMdiO+0q1EybT6h
hBgPzv3pS9XKx+kVpHXMU99Mts/bqFg5uloTSk/qnnDJGeLnvrUYAXnYE80CyPsX
2RAW+ZVyUHkW8KeDTgulz5ogU1ylAmyZmiXG6Q6deqzCMlJOH4Bg0FYVD7u7+BRC
xAUl9rvE61m57Y5Il/Q6lsXX5hwKMBgKqRorBsNi1p0V/LkcjwONR0SQvkD3OhP4
XKPQ24jlANACwSjbcmuxw/4dtfkpWh6KYKagI22+OR+vS1By+t4gtLJLAxw07VRC
WPCc77ru/vGK7xzi5e0HsOfnm629NnQZVjEdERAnqNqJgLIn/AGygp8Aa++WWjJh
zY5dh0fDkJhoq9BysNvTwFuiaXEOH0AVQK2t9rlHhUA2eZD2OiiFNOWG/rhlXsM4
A9jIVKDsN8a1Bge1IDu31pBO+TQF01t9iFIVFQIDAQABo4ICcTCCAm0wDgYDVR0P
AQH/BAQDAgWgMBMGA1UdJQQMMAoGCCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAwHQYD
VR0OBBYEFCXMgVaxo2xoPcuIaWh9ddZKUkb7MB8GA1UdIwQYMBaAFEAVLSZ57TIg
nt+ach3WMh+BDIEMMDMGCCsGAQUFBwEBBCcwJTAjBggrBgEFBQcwAoYXaHR0cDov
L3lyMi5pLmxlbmNyLm9yZy8wbwYDVR0RBGgwZoIHOTMwMC5ka4IXc2FlYnlhbnRl
bm5lZm9yZW5pbmcuZGuCCXNhZm5ldC5ka4ILd3d3LjkzMDAuZGuCG3d3dy5zYWVi
eWFudGVubmVmb3JlbmluZy5ka4INd3d3LnNhZm5ldC5kazATBgNVHSAEDDAKMAgG
BmeBDAECATAuBgNVHR8EJzAlMCOgIaAfhh1odHRwOi8veXIyLmMubGVuY3Iub3Jn
LzQxLmNybDCCAQsGCisGAQQB1nkCBAIEgfwEgfkA9wB2ANdtfRDRp/V3wsfpX9cA
v/mCyTNaZeHQswFzF8DIxWl3AAABoBfiqSYAAAQDAEcwRQIgQFytEFp4SUT7zSUW
VUTImC3+xv7qsBhandpQ4hk49OQCIQCNtIXOinaQdEIe9fR2Md1ekryD1vv3wnHB
iXj9NUBUqwB9ACbjZG5YaSEjvDQ/RyQ1mzeSzSRaiNgV05Mz/ZkYq0cjAAABoBfi
o1QACAAABQA2KKxNBAMARjBEAiABH2HRX/I6OL85TLRXc5laPb8Mgrms5Xhw3+Uu
qWOGEwIgUaoxSISZv0cDRbGqTfeO8oAMT4wFj17MfKTzMSy9baIwDQYJKoZIhvcN
AQELBQADggEBAFJeT8qgIN2zjpPI+HOSNrdAF+ZqjLsTM4ojB8IxXGEv+cAum7w3
IrsyWomCCqIUsAUD4kwxxpjOYRUGbboS8I2b0WAgZ/ySM2/xTZZmuLCQ2McBGtp+
i8yzjOJfmstRdM3/SlwmNM61JkofFnRuL/DKWNZT8aMrGRSWmnFI7m84POV6eNYV
q7Ss8lcUbsaepJ3j899XtyAGgn5qMEupKnnHa1m5A3xzgxzDmYXUXSf4iQHSKUqQ
AkC7qTP/v8FMX3LxmWkCpX87NJ3FADugnZM0ibpRuYROeLrHHv0ckSxUgwWQ4AJ8
/W7S9fAA878Pyp4kI5yTPLefIAww/yXjvGg=
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-26T20:20:31+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
707
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
2168
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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