Be the first to know when your sites slow down.
Site health watchduck for developers and site maintainers. We continuously monitor your site's speed and health, learning its normal behavior so we can alert you when it degrades.
Performance intelligence, not just uptime
Adaptive intelligence
We built notiduck to alert accurately. Our models learn your server's normal behaviour from multiple locations, so you only hear from us when something actually changes.
TTFB breakdown
We measure DNS, TCP, TLS, and server wait time from each location. You see exactly where the delay is, not just an average.
SSL, domain, and SEO health
Track SSL and domain expiry, WWW canonicalisation, and SEO basics. Every check produces a 100-point health score so you can see how your site is doing at a glance.
Core Web Vitals, every 6 hours
We run full Google Lighthouse audits every 6 hours. Track the Core Web Vitals that affect your search rankings and user experience. We keep your latest 20 reports, each sharable via a public URL.
Frequently asked questions
How is this different from standard monitoring tools?
Standard monitors are noisy. They use hardcoded thresholds that trigger on transient network blips, leading to alert fatigue. We use a multi-location consensus engine to only alert you when the shift is real and verified.
What does notiduck actually do?
We ping your site every 5 minutes from 3 locations and run a Google Lighthouse audit every 6 hours. We build a statistical baseline per location and alert you when your Core Web Vitals or response times shift significantly. Think of it as performance intelligence that actually learns your server's health.
What counts as an anomaly?
We watch for sustained shifts in your site's performance. A sudden spike in one location. Multiple locations degrading together, which usually points to the origin server. Or one region falling behind while others stay healthy, often a CDN or regional network issue. Each alert includes the actual measurements so you know exactly what changed.
How often do you run Lighthouse?
Every 6 hours on a rolling window with randomised jitter, sampling every behavioral quadrant of your site's performance. We don't just check for SEO; we use Google Lighthouse as a diagnostic sensor. If your Core Web Vitals start to degrade, it often points to a server redlining or a resource bottleneck that simple uptime checks might miss.
What is in a downtime alert?
A screenshot captured from Gravelines at the moment we detected the issue, the HTTP status code or error class, the TTFB at the time of failure, and which locations agreed on the outcome. Useful for spotting maintenance pages, config errors, and blank 5xx responses without having to open the dashboard.
What notification channels are supported?
Email currently. SMS and Telegram are coming next.
How far in advance do you alert for SSL and domain expiry?
We track both continuously and alert 7 days before expiry. Enough warning to renew without a late night panic.
Can I add multiple sites?
Yes. Every site you add is monitored from all 3 global locations at a 5 minute cadence, billed at a flat rate. No per site limits, no tiers.
Where are you hosted?
Everything is EU owned and hosted. Our current monitoring locations are France (Gravelines), Finland (Helsinki), and North America. Even our global locations run on EU-governed infrastructure, ensuring the highest standards of data privacy and security.
Do you also monitor competitor prices?
Yes, as a separate product at price.notiduck.com. Same account, same credit pool.