Visual Sentinel

Acefina LLC

About this app

Visual Sentinel watches your websites and servers around the clock and pages you the moment something breaks — before your customers notice.

It is the mobile companion to your Visual Sentinel account: a fast, focused cockpit for the on-call engineer. Sign in and your whole fleet is one glance away.

WHAT IT MONITORS
• Uptime — HTTP checks from multiple regions, so a single-region blip never wakes you
• SSL certificates — expiry and chain problems flagged well before they bite
• Domain expiry — never lose a domain to a missed renewal
• DNS — resolution and record changes
• Visual change detection — pixel-level screenshots catch defacements, broken layouts, and silent content changes that status codes miss

SERVERS, TOO
• Live CPU, memory, and disk pressure for every connected host
• Load average, uptime, and the top processes at a glance
• Threshold alerts when a server runs hot — pause them during planned work

WHAT YOU CAN DO FROM YOUR PHONE
• See your fleet at a glance — a live health header and per-site status
• Open a site or server for full detail — uptime, SSL, DNS, visual history, live metrics
• Triage incidents — acknowledge and resolve, add updates, right from the lock-screen alert
• Pause or resume a monitor, or run an on-demand check
• Pause all alerts during planned maintenance
• Pin the sites and servers you care about to a personal dashboard
• Tune exactly which events notify you, per channel

BUILT FOR ON-CALL
• Instant push notifications when a site goes down — and again when it recovers
• Clear incident timelines so hand-offs are effortless
• A calm, dark, instrument-panel interface: bad news never buries the important thing

SIGN IN YOUR WAY
Email, Google, GitHub, or Apple — with optional two-factor and biometric unlock.

Visual Sentinel requires a Visual Sentinel account. Monitoring runs on our servers, so alerts keep coming even when the app is closed.

Questions? [e-mail]
Privacy: https://visualsentinel.com/privacy