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

asklepios.com · 167.235.217.135:443

Verified

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

Subject
CN=asklepios.com
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-08-09T17:36:22+00:00
Expires
2026-11-07T17:36:21+00:00
Days remaining
46
Serial (hex)
0535EAE852E483E6938DB02CCAD964A720E5
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:asklepios.com, DNS:gesundleben.asklepios.com, DNS:onlineklinik.asklepios.com, DNS:pre-www.asklepios.com, DNS:www.asklepios.com

SHA-256 fingerprint

85:A3:08:23:39:F8:4A:D0:B1:58:BF:36:2B:00:02:D7:DF:42:66:8A:4A:04:64:8A:27:B0:65:30:90:03:6E:5E
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
41:A9:B9:CA:D9:6B:1C:D0:7C:82:9D:43:72:5F:8F:8C:C1:36:59:90
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:asklepios.com, DNS:gesundleben.asklepios.com, DNS:onlineklinik.asklepios.com, DNS:pre-www.asklepios.com, DNS:www.asklepios.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/102.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 9 18:34:53.156 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:FB:6D:E7:DE:FF:DD:10:D4:2E:93:DA: DA:FC:E8:4D:F5:E9:38:1A:B3:77:3A:31:D2:72:2F:26: A8:FD:E7:6D:A3:02:21:00:C8:5B:9A:36:FB:95:72:C6: 2B:A2:F7:23:AD:A4:14:36:62:80:AC:AC:26:C9:9B:C2: D5:30:B8:DB:46:69:BC:9E 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 : Aug 9 18:34:54.030 2026 GMT Extensions: 00:00:05:00:19:F8:11:25 Signature : ecdsa-with-SHA256 30:46:02:21:00:D7:49:E0:D8:AE:5C:99:DC:83:2B:DB: 5E:5F:BA:3A:38:F4:CA:36:4E:FF:9A:70:0C:04:AF:AA: 74:5A:44:23:C3:02:21:00:99:D0:D2:36:2C:AD:8B:BA: CB:41:F6:32:64:34:17:24:21:FB:9D:9F:41:D8:71:17: 1F:AC:36:DF:C8:89:05:8E
-----BEGIN CERTIFICATE-----
MIIGWDCCBUCgAwIBAgISBTXq6FLkg+aTjbAsytlkpyDlMA0GCSqGSIb3DQEBCwUA
MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD
EwNZUjEwHhcNMjYwODA5MTczNjIyWhcNMjYxMTA3MTczNjIxWjAYMRYwFAYDVQQD
Ew1hc2tsZXBpb3MuY29tMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA
k7O+HCH+vHI72pLuNHUClFPZGi4xtLMnUfrKsiI0PFWtp4WwsG3RPifmBjxIDVGY
AzSvaXHEdmMVdOPLnVo7qVQnUAHHDzIdVH9X13/PMztwRVahHC4pu/Gq+YKbzLNu
ZbTqWJx1I08YCM0TxoWmiPHg1Jbg552kqltd5jKRu+g8zk+QcPHVKXcDL7Sr4s1h
QoOHWE+CvRL1FjV5g80Z4I7CJ2oZVQ2Sl480cbBV8Km89aKqfRizZNLYl+eSWK+d
nc5+/bs6EogPlGgRA9dsTwAWxHKVm9l2x1fsd7agkjX3RNcc3cvF9ANR6rzw4pAr
T6XtEkZ+9hPmenVplp7QNC2XK3KaHZaEiUUJkfWY3cauVQdTNqbo1DQxmvTqmt2J
J+rV1ppU65WMnlcIPzW+8YwDgS515wH0lgJUKgoyEAPaV6TLh1AY81j+/phSa6ru
v5gpxmXwd0Itz6OlRhsssDRmrUiXxDvCscJ9xY+QDayOz5O/HFf6zuynbEATPZOt
Dt6EEsYbw+eLSv3lqYW3Tlmns/3yDMrDKkUcFumUE2DD0uIbMntHdQHliiw8/lNg
AgPCn06k2qsm67eTHeCHBXWHiGyIMW0vvvyldyke6AzgfKbsQgnSXMfDX3Zlhxon
7HdWUevlkNGRUs/kTAMLBYSfejxcQ6t4o3MqQ/bScIUCAwEAAaOCAn8wggJ7MA4G
A1UdDwEB/wQEAwIFoDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAA
MB0GA1UdDgQWBBRBqbnK2Wsc0HyCnUNyX4+MwTZZkDAfBgNVHSMEGDAWgBQfLzW+
RhSCzUCxrnksVXj699Ro+zAzBggrBgEFBQcBAQQnMCUwIwYIKwYBBQUHMAKGF2h0
dHA6Ly95cjEuaS5sZW5jci5vcmcvMHkGA1UdEQRyMHCCDWFza2xlcGlvcy5jb22C
GWdlc3VuZGxlYmVuLmFza2xlcGlvcy5jb22CGm9ubGluZWtsaW5pay5hc2tsZXBp
b3MuY29tghVwcmUtd3d3LmFza2xlcGlvcy5jb22CEXd3dy5hc2tsZXBpb3MuY29t
MBMGA1UdIAQMMAowCAYGZ4EMAQIBMC8GA1UdHwQoMCYwJKAioCCGHmh0dHA6Ly95
cjEuYy5sZW5jci5vcmcvMTAyLmNybDCCAQ4GCisGAQQB1nkCBAIEgf8EgfwA+gB3
ANgJVTuUT3r/yBYZb5RPhauw+Pxeh1UmDxXRLnK7RUsUAAABn+fObWQAAAQDAEgw
RgIhAPtt597/3RDULpPa2vzoTfXpOBqzdzox0nIvJqj9522jAiEAyFuaNvuVcsYr
ovcjraQUNmKArKwmyZvC1TC420ZpvJ4AfwCoJsvjCsY1EkZTP+Bl8U8Z2W4ZCBPE
HdlteQCzEjxVJwAAAZ/nznDOAAgAAAUAGfgRJQQDAEgwRgIhANdJ4NiuXJncgyvb
Xl+6Ojj0yjZO/5pwDASvqnRaRCPDAiEAmdDSNiyti7rLQfYyZDQXJCH7nZ9B2HEX
H6w238iJBY4wDQYJKoZIhvcNAQELBQADggEBAHKkfHApz9hPRL+2pMtJNH4c4zSv
sP5XG6jfR2kws/c9oDKR9ZbA7j+asXnUhs7VmA6Yoqs5dFhh3TAuynwSZ6G/i83g
WbTdWdyo9jKO96LZxXytA6MctA4UJaujTrdXqY+wBIZ5Ge/PmfyVr7elS4f7bGod
+ssnySQ+CIgwv6ilbwVe69G0liGx7fv2bJlJ+M93eeckjbwKAMZLHuyActyhKeoa
P7YdCN3g/Xxe4pJUaxbSxUKNWiu356tbfJ7hR9m8Xl1EOqFvAe8HmA1leHxBqKgD
5dfEmmd8pZ+HNRSmdcO7UBj6GtPUWwsxRzKf8AFYlz+cs5MZuBoFhKOtJKk=
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-22T10:45:51+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
711
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
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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