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

TLSv1.2

acomm.vn · 123.31.31.200:443

Verified

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

Subject
CN=*.acomm.vn
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Valid from
2026-06-24T00:00:00+00:00
Expires
2027-01-08T23:59:59+00:00
Days remaining
97
Serial (hex)
F03A10D3823EBCB4AC7A96A018033A6B
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.acomm.vn, DNS:acomm.vn

SHA-256 fingerprint

90:D7:3E:27:0A:6D:9E:34:1E:FE:65:60:F5:9F:92:F8:8E:F6:A6:D9:2B:01:45:EE:C4:2C:3C:D8:C5:F3:E8:69
Certificate extensions & PEM
authorityKeyIdentifier
68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
subjectKeyIdentifier
ED:2A:D6:37:93:B3:44:A7:6E:C9:00:0F:0C:C8:6E:8E:37:C8:75:03
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.7 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCADVR36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:*.acomm.vn, DNS:acomm.vn
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Jun 24 05:56:38.198 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:30:A5:7B:8D:71:AE:59:35:A9:B5:D1:D4: DC:EC:B0:70:9F:E8:7D:53:F6:7F:07:0C:4A:0A:30:0A: 9B:3D:5F:90:02:20:54:A1:BF:24:65:8F:40:95:93:99: 38:04:D7:5F:5E:39:2A:86:6D:30:A4:81:68:22:BF:5E: 84:72:9D:EB:FD:79 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Jun 24 05:56:38.566 2026 GMT Extensions: 00:00:05:00:04:6D:E8:57 Signature : ecdsa-with-SHA256 30:46:02:21:00:B2:B9:9E:D5:A3:05:A4:03:A4:66:B4: 77:1E:92:C6:E7:52:0F:FD:30:1F:07:66:1A:CB:8B:B0: 52:D6:8A:0F:03:02:21:00:FB:F9:EE:BE:FC:CB:AE:B0: 5C:00:56:45:7D:1B:6F:D4:1D:CC:01:A4:DC:95:A8:EB: 76:B6:0A:3E:B5:6C:8B:58 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Jun 24 05:56:38.426 2026 GMT Extensions: 00:00:05:00:00:3E:97:C4 Signature : ecdsa-with-SHA256 30:46:02:21:00:BE:17:26:82:C5:A7:A8:20:FC:0B:99: 66:59:B7:41:CF:DC:72:86:F9:37:A0:DF:CD:96:7C:A4: D4:60:A0:5C:9C:02:21:00:D3:02:03:61:0F:1A:08:57: B8:5A:3C:38:B8:B0:EA:49:3C:75:B8:2A:79:CF:43:EE: 85:5A:65:69:B2:25:7E:9E
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-10-03T18:48:26+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2021-03-22T00:00:00+00:00
Expires
2036-03-21T23:59:59+00:00
Days remaining
3457
Serial (hex)
397A66CC2756362E0DAA87CA6EABE3B1
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

8C:54:C3:34:B6:6B:A4:E4:26:77:2A:F4:A3:F9:13:6C:19:A1:AE:C7:29:FD:B2:8C:53:5C:07:A5:A4:EF:22:E0
Certificate extensions & PEM
authorityKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
subjectKeyIdentifier
68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationRootR46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootR46.p7c OCSP - URI:http://ocsp.sectigo.com
-----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

Registration / WHOIS →DNS records →