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

netguard.bg · 195.238.85.16:443

Verified

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

Subject
CN=netguard.bg
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-20T21:10:56+00:00
Expires
2026-12-19T21:10:55+00:00
Days remaining
75
Serial (hex)
065D2CABBD7628387C7716D65CC21C68E4B8
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:fiber-home.net, DNS:fiber-ring.net, DNS:fiber-ring.org, DNS:netguard.bg, DNS:netguardbg.com, DNS:netguardbg.net, DNS:netguardbg.org, DNS:www.fiber-home.net, DNS:www.fiber-ring.net, DNS:www.fiber-ring.org, DNS:www.netguard.bg, DNS:www.netguardbg.com, DNS:www.netguardbg.net, DNS:www.netguardbg.org

SHA-256 fingerprint

75:82:BE:C9:EC:75:71:AC:99:5E:58:FA:0C:DC:7E:BD:51:19:71:AE:82:FB:D4:73:71:3D:C8:F5:58:06:8E:EE
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
34:9F:29:48:7D:5B:47:9A:22:31:D7:CF:9E:93:B1:D8:00:BE:14:F6
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:fiber-home.net, DNS:fiber-ring.net, DNS:fiber-ring.org, DNS:netguard.bg, DNS:netguardbg.com, DNS:netguardbg.net, DNS:netguardbg.org, DNS:www.fiber-home.net, DNS:www.fiber-ring.net, DNS:www.fiber-ring.org, DNS:www.netguard.bg, DNS:www.netguardbg.com, DNS:www.netguardbg.net, DNS:www.netguardbg.org
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/57.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86: D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF Timestamp : Sep 20 22:09:27.547 2026 GMT Extensions: 00:00:05:00:43:5A:F3:59 Signature : ecdsa-with-SHA256 30:46:02:21:00:8C:8C:28:DC:13:05:B9:E2:C3:99:0F: 01:14:3E:45:B8:06:F5:53:C1:2F:0C:6B:C4:06:7E:A1: 6F:FF:19:B0:AE:02:21:00:82:69:30:10:3E:05:A7:67: 26:8D:88:14:D9:E9:5C:71:E5:28:3E:48:BB:C4:C7:97: 58:58:5D:C8:4A:9B:10:1C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Sep 20 22:09:30.615 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A9:10:3B:29:D6:CC:D8:86:94:9A:F8: 88:8D:93:6A:5A:0E:07:8A:72:07:30:43:0B:25:1D:8D: B4:78:98:00:0A:02:21:00:9B:96:75:78:79:37:8A:F2: 0A:24:18:FF:7E:2C:79:AF:FB:A6:94:EC:B2:A3:02:93: E6:01:F1:B9:5B:64:DE:EA
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-05T20:50:31+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
698
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
2159
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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