Be the first to know when your sites slow down
Pay-as-you-go monitoring that spots performance regressions before they cause downtime. Triple-geo verification and Lighthouse audits every 4 hours catch server saturation and plugin errors that standard pings miss. The Agentic Browsing test reveals if AI models can read your site.
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 security health
Track SSL and domain expiry, modern security headers (Mozilla Observatory), 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 4 hours
We run full Google Lighthouse audits every 4 hours. Track the Core Web Vitals that affect your search rankings and user experience. We keep your reports for a full week, each sharable via a public URL.
AI readiness monitoring
Track how visible your site is to AI agents with Google Lighthouse's Agentic Browsing test. We check your llms.txt, WebMCP integration, agent accessibility, and layout stability — the signals that determine whether chatbots and LLMs can recommend and interact with your site.
Triple-geo verification
When a site appears to go down, notiduck verifies the outage from 3 geographic locations before sending an alert. If one node detects a problem, the other two double-check: no more flaky false positives.
Anti-alert fatigue
When your site is unstable and flapping, notiduck sends one verified alert, then enforces a 2-hour cooldown on duplicate notifications. You get the data you need, then silence to fix it.
Pay-as-you-go pricing
Running on self-hosted bare-metal, not VC money. 3 EUR/month per site, pause anytime. Our pricing is structurally permanent, not a temporary undercut.
Share results your AI can read
Every monitor generates a live share link that any AI agent or tool can read directly. Paste the link, get the full data. The link updates automatically, so your agent can check back after fixes.
Your AI agent fixes an issue, checks the same link again, sees the improvement, and moves to the next one. No screenshots, no copy-paste, no guessing.
Alerts you actually want to get
One alert, then silence
When your site is flapping between up and down, traditional monitors send you a flood of notifications. Notiduck sends one verified alert, then enforces a mandatory 2-hour cooldown. You get the data you need, then silence to fix it.
Celebrate the wins
Most monitors only message you when something breaks. Notiduck also alerts when your performance numbers improve. When your Lighthouse scores jump because you shipped an optimisation, the Watchduck lets the team know. Optimisation is hard work: it deserves recognition.
Built by and for engineers
Smart monitoring for developers
If you run one site, you're likely running several. And though you might tell clients and investors differently, they probably use the same stack. Same boilerplate. Same plugins. Same hosting layer. When one goes sideways, they all go sideways.
Standard monitors only catch when something is down. They miss the slow creep. TTFB creeping from 200ms to 800ms over three months. Lighthouse scores dropping as plugins pile up. SSL certs expiring because nobody set a reminder. This is what actually kills sites. Not sudden outages. Slow degradation.
For basic pings across a large fleet, self-host Uptime Kuma on a VPS. It is free and it works. You do not need to monitor everything with Notiduck. Point it at the subset that matters, the ones where performance regression actually costs you money. We run Lighthouse audits, track adaptive baselines so you see when things get worse, and verify from 3 locations. One dashboard for all your hosting providers.
Why is Notiduck so affordable?
Notiduck is built on a foundation of structural efficiency. We run on our own bare-metal infrastructure, which is already sustained by our other profitable software projects. This means we aren't burdened by high overhead or external growth pressures.
Because our baseline costs are already covered, we can offer sustainable, pay-as-you-go pricing that reflects the actual cost of running the service. Our pricing is straightforward: 3 EUR/month per site, pause anytime. No fixed subscriptions, no hidden tiers, just simple engineering value.
99.9% monthly uptime SLA. If the notiduck monitoring API or dashboard is unavailable for more than ~43 minutes in a calendar month, we double all account balances. Downtime means the core service is unreachable for 5+ consecutive minutes. Excludes scheduled maintenance with advance notice. We do not exclude third-party outages. If something breaks on our end, we own it.
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.
How does Notiduck prevent false positive alerts?
When a site appears to go down, we don't alert based on a single check. Notiduck verifies the downtime from 3 geographic locations before sending a notification. If one node detects a problem, the other two double-check. This eliminates false alarms caused by localized network routing issues, CDN blips, or temporary DNS hiccups.
What does notiduck actually do?
We ping your site every 5 minutes from 3 locations and run a Google Lighthouse audit every 4 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 4 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?
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 notifications are free and included with every monitor. SMS alerts are available as an optional paid add-on for critical incidents.
Will Notiduck spam me with notifications during an outage?
No. When an outage is confirmed, Notiduck sends exactly one notification, then enforces a 2-hour cooldown on duplicate down alerts. If your server is unstable and flapping between up and down, you won't get 87 messages in 20 minutes. You get the data you need, then silence to fix it.
Does Notiduck only notify me when things break?
No. Notiduck also sends celebration alerts when your performance numbers improve. If you deploy an optimization and your Lighthouse score jumps, the Watchduck lets you know. Optimization is hard work: you deserve the high-five.
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.
What is the AI readiness score?
The AI readiness score comes from Google Lighthouse's Agentic Browsing category. It measures how well your site is structured for AI agents: whether you have an llms.txt file, whether your forms are machine-readable via WebMCP, and whether your page is accessible to automated browsing tools. We display it as a pass ratio (e.g. 3/3) because the number of applicable checks varies per site. A site without forms won't be tested on the WebMCP audit, so it might be 1/2 instead of 3/3.
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. If you prefer not to manage manual refills for a large fleet, we can configure custom auto-top-ups for your account upon request.
Where are you hosted?
Everything is EU owned and hosted. Our current monitoring locations are France (Gravelines), Canada (Montreal), and Finland (Helsinki). 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.
I already have uptime monitoring. Why add Notiduck?
Uptime monitors answer one question: is it up? They do not catch the slow creep. The TTFB that went from 200ms to 800ms over three weeks. The Lighthouse score that dropped after a dependency update. The SSL cert expiring on a Tuesday. Notiduck catches all of that. Keep your basic ping monitor for the fleet. Use Notiduck for the sites where performance matters.