We built the monitor we wished
actually existed.
About · built by an operator
One that sees your website the way your visitors do, not just the way your server does.
Reachable is not the same thing
as a working page.
Traditional uptime monitors answer one question: "Does the server respond?". That does not mean your visitors see a working page. A CSS deployment can break your layout. A CDN glitch can serve stale assets. A plugin update can wipe out your checkout flow. The server keeps responding, the monitor stays green, and customers leave.
We saw it firsthand: uptime was 100%, but the site was visually broken for hours before anyone noticed. Existing tools couldn't catch it because they never actually looked at the page. They checked the heartbeat but not the patient.
Visual Sentinel was built to close that gap. We don't just check that your server answers: we open your pages in a real browser, take screenshots, compare them pixel by pixel, and alert you when a scheduled check finds something that looks wrong (every 15 or 30 minutes, depending on your plan). Combined with performance, SSL, DNS, and content checks, you get a complete picture of your site's health.
Built by Acefina LLC
Operator of Visual Sentinel. ACEFINA LLC, a Wyoming limited liability company, 9550 Ploof Rd SE, Unit 2B, Leland, NC 28451, USA
Acefina LLC builds and operates Visual Sentinel from the same production monitoring problems the product is designed to catch. The platform uses a real Playwright + Chromium browser so it can see broken pages, layout failures, and client-side issues that cheap HEAD requests miss.
The product grew out of a recurring frustration on the ops side: client sites that passed every UptimeRobot check while real visitors reported a blank white screen after a CSS deploy, a broken checkout after a WordPress plugin update, or an expired SSL cert that the uptime dashboard still showed 100% green on. The website issue checker (uptime, visual, SSL, DNS, performance, content) exists because those are the failure modes the team kept running into while operating real websites.
Visual Sentinel is founded and built by Rai Ansar, who runs production websites day to day and kept hitting the same failure the product now catches: a green uptime check sitting on a visibly broken page.
Most tools check one or two things.
We check what breaks.
A site can fail in ways a simple ping will never catch. These checks came directly out of incidents we couldn't catch with anything else.
Uptime
Scheduled HTTP and HTTPS checks from 5 minutes on Solo to 1 minute on Business and Agency, with cross-region confirmation before outage alerts.
Performance
Regional request timing plus scheduled mobile Lighthouse lab metrics. Review trends alongside real-user field data from Search Console or CrUX.
SSL & TLS
Certificate expiry warnings, hostname and trust authorization, and served leaf-certificate evidence.
DNS
Six-hour history snapshots for selected A, AAAA, CNAME, MX, TXT, and NS records. Review observed changes without claiming global propagation coverage.
Visual
Pixel-level screenshot comparison. See exactly what changed on your page, even when the server says everything is fine.
Content
Configured text, selector, keyword, and freshness checks on Starter and higher. Detect the response changes represented by the rules you set.
See what your visitors see,
before they tell you something's wrong.
start with a first checkYour first check is free when you add your site. Then try a paid plan for 7 days (card required) or subscribe, from $15 USD a month.