alt.com.br
IPv6: no public AAAA record — the domain is reachable over IPv4 only.
Grade Breakdown
Protocol Support 95%
Key Exchange 90%
Cipher Strength 100%
Certificate 100%
Site Access: HTTP and HTTPS
What a visitor typing each address gets, and where its redirects end (up to 5 are followed), as seen from our scanner.
| Host | http:// (port 80) | https:// (port 443) |
|---|---|---|
| alt.com.br | 301 → https://alt.com.br/ → … → https://www.alt.com.br/ → 200 OK | 301 → https://www.alt.com.br/ → 200 OK |
| www.alt.com.br | 301 → https://www.alt.com.br/ → 200 OK | 200 OK |
- http://alt.com.br redirects to HTTPS.
DNS Records
As a public resolver answered for alt.com.br. Looked up 2026-11-08 08:43 UTC · 2 days ago
| Type | Records |
|---|---|
| A | |
| AAAA | None |
| NS | ns1.altcloud.net.br ns2.altcloud.net.br |
| MX | 1 aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com |
| SPF | v=spf1 include:_spf.google.com ~all |
Certificate Identity
| Common Name | alt.com.br |
| Alt Names | alt.com.br www.alt.com.br |
| Issuer | CN=WR1, O=Google Trust Services, C=US |
| Validity | 2026-09-27 to 2026-12-26 (45 days remaining) |
| Key | RSA 2048 bits (sha256RSA) |
| Serial Number | 00BBB66157EA1C7D2311D400EB06E93DCB |
| SHA256 Fingerprint | 9697c9542ca1fb0d89a8c34d922dfd9994758a3ff1994ddb4f16f034c22c708b |
| Pin SHA256 | hyuh4f88WEA24hvc9m2HjaP/Ryg5Lw3ThlCGT2KGcMk= |
Certificate Properties
| Type | DV |
| Cert Transparency | Yes (SCT) |
| OCSP Must Staple | No |
| Revocation | Good (not revoked) CRL: http://c.pki.goog/wr1/33G1XQ6HHyw.crl No OCSP responder — revocation is published via CRL only (as CA/B Forum rules now allow). |
| DNS CAA | No (missing) |
| Trusted By | Yes Mozilla · Apple · Android · Java · Windows |
| Name Match | Yes |
| Validity Period | 90 days (maximum 200 days for certificates issued then) |
| Chain Issues | None |
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 | Yes |
| Supported Named Groups | X25519MLKEM768 x25519 secp256r1 secp384r1 secp521r1 (server preference order) |
| Post-Quantum Key Exchange | Yes X25519MLKEM768 |
| 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 (certificate has no OCSP responder) |
| 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 (server-preferred order) | |||||
| 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 (server-preferred order) | |||||
| 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 |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 | 0xCCA8 | ECDHE | FS | 256 | Secure |
| TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA | 0xC013 | ECDHE | FS | 128 | Weak |
| TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA | 0xC014 | ECDHE | FS | 256 | Weak |
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.
Trust Chain Architecture
End-Entity Certificate
CN=alt.com.br (Issuer: CN=WR1, O=Google Trust Services, C=US)
Intermediate CA
CN=WR1, O=Google Trust Services, C=US (Issuer: CN=GTS Root R1, O=Google Trust Services LLC, C=US)
Root Certificate
CN=GTS Root R1, O=Google Trust Services LLC, C=US (Issuer: CN=GTS Root R1, O=Google Trust Services LLC, C=US)
TLS History & Relations
Everything our scans have seen for alt.com.br, first seen 2026-11-08; current certificate since 2026-11-08.
Certificates served
| Certificate (SHA-256) | Issuer | Valid | Served |
|---|---|---|---|
| 9697c9542ca1fb0d… current | WR1 | 2026-09-27 → 2026-12-26 | 2026-11-08 |
Addresses
| Address | Certificate | Seen |
|---|---|---|
| 185.230.63.107 | 9697c9542ca1fb0d… | 2026-11-08 |
TLS history (a row per change; repeated checks only extend it)
| Since → last checked (UTC) | Grade | TLS | Certificates | Addresses |
|---|---|---|---|---|
| 2026-11-08 08:43 | A+ | TLS 1.3 | 9697c9542ca1fb0d… | 185.230.63.107 |
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