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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

intercom.io · 18.239.69.52:443

Verified

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

Subject
CN=*.intercom.com
Issuer
C=US O=Amazon CN=Amazon RSA 2048 M04
Valid from
2026-10-13T00:00:00+00:00
Expires
2027-04-28T23:59:59+00:00
Days remaining
189
Serial (hex)
06BFD77D1C6102BA77956AA563C8EFB8
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.intercom.com, DNS:intercom.io, DNS:intercom.com, DNS:*.intercom.io

SHA-256 fingerprint

6A:0B:C0:6C:BB:69:F6:BC:7A:41:4F:A1:2B:5A:3F:1F:C0:9E:21:BC:F1:E4:21:F6:4D:1F:8B:67:46:D7:30:E3
Certificate extensions & PEM
authorityKeyIdentifier
1F:52:92:61:56:82:54:7F:81:66:D8:1D:3D:0A:AA:32:5C:87:DD:08
subjectKeyIdentifier
E5:E1:97:C3:66:6A:D6:1C:F4:79:DB:58:8C:9B:C5:E1:8A:E6:04:96
subjectAltName
DNS:*.intercom.com, DNS:intercom.io, DNS:intercom.com, DNS:*.intercom.io
certificatePolicies
Policy: 2.23.140.1.2.1
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.r2m04.amazontrust.com/r2m04.crl
authorityInfoAccess
OCSP - URI:http://ocsp.r2m04.amazontrust.com CA Issuers - URI:http://crt.r2m04.amazontrust.com/r2m04.cer
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Oct 13 12:07:13.191 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:BE:08:3B:83:40:88:47:C2:23:55:40: 99:A6:7F:EE:E2:74:06:7A:6E:42:89:F6:B7:94:E4:B3: 91:ED:08:95:F8:02:20:56:1F:05:DD:C9:D2:B7:F3:24: 1E:DE:41:6E:5E:86:44:FB:BB:60:89:C7:4F:BF:94:A9: 3F:BC:2B:30:19:A0:11 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Oct 13 12:07:13.172 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E9:A5:B3:57:C6:5B:B6:6F:68:80:34: D1:C8:CD:BF:00:55:D3:2D:03:BF:92:27:E0:DA:CD:0C: 72:E0:9C:45:DB:02:20:4A:1A:97:49:A3:2C:A4:9E:E4: DD:F9:92:8C:78:8D:2C:7A:4E:0D:8C:9D:A6:A6:2A:BE: AA:78:DE:15:C3:CC:38 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Oct 13 12:07:13.259 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:BC:B3:BF:38:36:61:9A:A4:36:B2:4B: 9B:42:F7:8E:2A:F5:5B:B6:E7:AF:5A:1D:29:1B:47:D0: C9:E3:E4:BF:85:02:20:3A:60:55:76:91:D7:89:07:75: 82:EE:18:AC:F5:17:F4:C8:C4:43:F4:AC:1B:CE:F1:98: 9F:34:84:70:50:4B:17
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-21T19:10:34+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Amazon CN=Amazon RSA 2048 M04
Issuer
C=US O=Amazon CN=Amazon Root CA 1
Valid from
2022-08-23T22:26:35+00:00
Expires
2030-08-23T22:26:35+00:00
Days remaining
1402
Serial (hex)
0773124F2A952E3ED18A58BDB85D1BC0CE5F27
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:8B:DF:6E:23:AC:97:1E:B4:E6:26:B2:79:DD:6A:26:F0:57:51:0F:1D:E3:94:29:3A:5E:EA:28:60:DE:01:9B
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
subjectKeyIdentifier
1F:52:92:61:56:82:54:7F:81:66:D8:1D:3D:0A:AA:32:5C:87:DD:08
authorityKeyIdentifier
84:18:CC:85:34:EC:BC:0C:94:94:2E:08:59:9C:C7:B2:10:4E:0A:08
authorityInfoAccess
OCSP - URI:http://ocsp.rootca1.amazontrust.com CA Issuers - URI:http://crt.rootca1.amazontrust.com/rootca1.cer
crlDistributionPoints
Full Name: URI:http://crl.rootca1.amazontrust.com/rootca1.crl
certificatePolicies
Policy: 2.23.140.1.2.1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Amazon CN=Amazon Root CA 1
Issuer
C=US ST=Arizona L=Scottsdale O=Starfield Technologies, Inc. CN=Starfield Services Root Certificate Authority - G2
Valid from
2015-05-25T12:00:00+00:00
Expires
2037-12-31T01:00:00+00:00
Days remaining
4088
Serial (hex)
067F944A2A27CDF3FAC2AE2B01F908EEB9C4C6
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

87:DC:D4:DC:74:64:0A:32:2C:D2:05:55:25:06:D1:BE:64:F1:25:96:25:80:96:54:49:86:B4:85:0B:C7:27:06
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
84:18:CC:85:34:EC:BC:0C:94:94:2E:08:59:9C:C7:B2:10:4E:0A:08
authorityKeyIdentifier
9C:5F:00:DF:AA:01:D7:30:2B:38:88:A2:B8:6D:4A:9C:F2:11:91:83
authorityInfoAccess
OCSP - URI:http://ocsp.rootg2.amazontrust.com CA Issuers - URI:http://crt.rootg2.amazontrust.com/rootg2.cer
crlDistributionPoints
Full Name: URI:http://crl.rootg2.amazontrust.com/rootg2.crl
certificatePolicies
Policy: X509v3 Any Policy
-----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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