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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

iptk.ru · 185.114.245.97:443

Verified

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

Subject
CN=iptk.ru
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-08-31T15:34:58+00:00
Expires
2026-11-29T15:34:57+00:00
Days remaining
62
Serial (hex)
060EEEE954952E1EA50713969B879B28DCD6
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:iptk.ru, DNS:www.iptk.ru

SHA-256 fingerprint

41:5A:C3:EE:E0:E6:7E:45:76:A3:3A:DD:0D:99:E9:EA:A3:39:58:E5:E8:FB:10:5E:13:CB:3E:D0:04:5B:DB:33
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
76:CB:C9:A4:2B:4F:40:C3:AB:A1:25:CE:36:12:71:FE:5A:6C:D4:94
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:iptk.ru, DNS:www.iptk.ru
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/87.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D: E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A Timestamp : Aug 31 16:33:28.947 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:82:A8:0F:B8:C0:5D:19:48:4B:C6:E7: 14:0A:D9:E3:91:AD:29:A6:C8:26:F0:E5:B2:C7:F4:F9: 2C:BA:6F:2F:B1:02:20:3A:56:EB:85:A8:E9:51:56:45: A3:03:D0:F7:1E:01:97:99:C6:E8:11:16:DF:6F:27:78: A7:C0:AA:C8:77:5C:07 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 31 16:33:27.090 2026 GMT Extensions: 00:00:05:00:3B:41:83:E5 Signature : ecdsa-with-SHA256 30:45:02:20:60:8B:F5:7B:35:EC:0E:7F:6E:6A:F3:45: E4:97:2A:C5:BC:C6:1E:6C:3F:F4:C2:5E:B8:3E:4E:1A: D1:17:3F:99:02:21:00:E1:D5:D0:4A:1F:79:C7:2C:47: 84:7B:D0:B9:B3:13:3F:86:F1:22:50:83:53:6F:0E:38: DE:15:26:38:53:82:14
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-27T21:46:39+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
706
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
2167
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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