domains.markmonitor.com
IPv6: no public AAAA record — the domain is reachable over IPv4 only.
All 3 endpoints share identical configuration Select an IP for owner, ASN & location
A+ 32.190.106.90 IPv4 WHOIS › A+ 44.241.156.210 IPv4 WHOIS › A+ 54.70.167.138 IPv4 WHOIS › Grade Breakdown
Protocol Support 95%
Key Exchange 90%
Cipher Strength 100%
Certificate 100%
Protocol Configuration
Supported Protocols
TLS 1.3
TLS 1.2
TLS 1.1
TLS 1.0
SSL 3
SSL 2
Negotiated Cipher
TLS_AES_128_GCM_SHA256
Protocol Details
| Connection | |
| ALPN | h2 http/1.1 |
| SNI Required | No |
| Supported Named Groups | X25519MLKEM768 SecP256r1MLKEM768 SecP384r1MLKEM1024 x25519 secp256r1 secp384r1 secp521r1 (server preference order) |
| Post-Quantum Key Exchange | Yes X25519MLKEM768, SecP256r1MLKEM768, SecP384r1MLKEM1024 |
| HTTP/3 (QUIC) | No |
| Encrypted Client Hello | No |
| Security Features | |
| Forward Secrecy | Yes (ECDHE / DHE) |
| Downgrade Prevention | Yes (legacy TLS disabled) |
| Secure Renegotiation | Supported (RFC 5746) |
| Extended Master Secret | Yes (RFC 7627) |
| OCSP Stapling | No |
| HSTS | No |
| HSTS Preloading | N/A (HSTS not enabled) |
| Security Checks | |
| BEAST attack | Mitigated |
| POODLE (SSLv3) | No (SSL 3 not supported) |
| POODLE (TLS) | No |
| RC4 | No |
| SSL/TLS Compression | No (not supported by .NET TLS stack) |
| Heartbleed | Not tested |
Cipher Suite Analysis
| Cipher Suite | Hex | Key Exchange | FS | Bits | Strength |
|---|---|---|---|---|---|
| # TLS 1.3 | |||||
| TLS_AES_128_GCM_SHA256 | 0x1301 | ECDHE | FS | 128 | Secure |
| TLS_AES_256_GCM_SHA384 | 0x1302 | ECDHE | FS | 256 | Secure |
| TLS_CHACHA20_POLY1305_SHA256 | 0x1303 | ECDHE | FS | 256 | Secure |
| # TLS 1.2 | |||||
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | 0xC02F | ECDHE | FS | 128 | Secure |
| TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 | 0xC030 | ECDHE | FS | 256 | Secure |
Handshake Simulation
| Client | Protocol | Cipher Suite | Result |
|---|---|---|---|
| Chrome 120 / Win 11 | TLS 1.3 | TLS_AES_256_GCM_SHA384 | Success |
| Chrome 80 / Win 10 | TLS 1.3 | TLS_AES_256_GCM_SHA384 | Success |
| Firefox 115 / Win 10 | TLS 1.3 | TLS_AES_256_GCM_SHA384 | Success |
| iOS 17 / Safari | TLS 1.3 | TLS_CHACHA20_POLY1305_SHA256 | Success |
| macOS 14 / Safari | TLS 1.3 | TLS_AES_256_GCM_SHA384 | Success |
| Android 14 | TLS 1.3 | TLS_AES_128_GCM_SHA256 | Success |
| Chrome 69 / Win 7 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Chrome 49 / XP SP3 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| IE 11 / Win 10 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| IE 11 / Win 7 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Android 9.0 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Android 7.0 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Android 5.0 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Android 4.4.2 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Java 11 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Java 8u121 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Android 4.0.4 | - | - | No |
| Android 4.1.1 | - | - | No |
| Baidu Jan 2015 | - | - | No |
| Java 6 | - | - | No |
* Simulated based on server's supported protocols and cipher configuration.
Certificate Identity
| Common Name | domains.markmonitor.com |
| Alt Names | *.markmonitor.com markmonitor.com |
| Issuer | CN=GeoTrust TLS RSA CA G1, OU=www.digicert.com, O=DigiCert Inc, C=US |
| Validity | 2026-09-29 to 2027-04-15 (155 days remaining) |
| Key | RSA 2048 bits (sha256RSA) |
| Serial Number | 052FCC131C3F7A07F225C75449DAA427 |
| SHA256 Fingerprint | 538498dc261d64a222e9254611e4fba91d32663f7fe2ef110c79860a0e8dae53 |
| Pin SHA256 | Dl3HBebz8ARq7m3aTm0Mw6JhfDX7hhfyeNYCsMQvVyM= |
Certificate Properties
| Type | OV |
| Cert Transparency | Yes (SCT) |
| OCSP Must Staple | No |
| Revocation | Unknown (CRL could not be downloaded) OCSP: http://status.geotrust.com CRL: http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl |
| DNS CAA | Yes (configured) 0 issue "digicert.com" |
| Trusted By | Yes Mozilla · Apple · Android · Java · Windows |
| Name Match | Yes |
| Validity Period | 199 days (maximum 200 days for certificates issued then) |
| Chain Issues | None |
Trust Chain Architecture
End-Entity Certificate
CN=*.markmonitor.com, O=MarkMonitor Inc., L=Meridian, S=Idaho, C=US (Issuer: CN=GeoTrust TLS RSA CA G1, OU=www.digicert.com, O=DigiCert Inc, C=US)
Intermediate CA
CN=GeoTrust TLS RSA CA G1, OU=www.digicert.com, O=DigiCert Inc, C=US (Issuer: CN=DigiCert Global Root G2, OU=www.digicert.com, O=DigiCert Inc, C=US)
Root Certificate
CN=DigiCert Global Root G2, OU=www.digicert.com, O=DigiCert Inc, C=US (Issuer: CN=DigiCert Global Root G2, OU=www.digicert.com, O=DigiCert Inc, C=US)
TLS History & Relations
Everything our scans have seen for domains.markmonitor.com, first seen 2026-10-01; current certificate since 2026-10-01.
Certificates served
| Certificate (SHA-256) | Issuer | Valid | Served |
|---|---|---|---|
| 538498dc261d64a2… current | GeoTrust TLS RSA CA G1 | 2026-09-29 → 2027-04-15 | 2026-10-01 |
Addresses
| Address | Certificate | Seen |
|---|---|---|
| 32.190.106.90 | 538498dc261d64a2… | 2026-10-01 |
| 44.241.156.210 | 538498dc261d64a2… | 2026-10-01 |
| 54.70.167.138 | 538498dc261d64a2… | 2026-10-01 |
TLS history (a row per change; repeated checks only extend it)
| Since → last checked (UTC) | Grade | TLS | Certificates | Addresses |
|---|---|---|---|---|
| 2026-10-01 00:27 | A+ | TLS 1.3 | 538498dc261d64a2… | 32.190.106.90, 44.241.156.210, 54.70.167.138 |