Catches what uptime monitoring misses
Your uptime dashboard is green. Your website is still broken.
Traditional uptime tools tell you the server responded. Sitewatch checks whether the page actually works — so you catch broken checkouts, dead forms, bad deploys, and silent frontend failures before clients do.
- Finds broken checkout pages, dead scripts, and redirect loops that cost you conversions — all invisible to uptime tools
- Verifies every deploy in minutes — catch breakage before your customers or clients do
- Auto-generates branded incident reports — stop spending hours writing post-mortems
All systems operational
Recent activity
All systems operational
Recent activity
The cost of finding out too late
These happen every week. Most teams don't find out until the client calls.
Your client's checkout has been broken for 3 days. They just emailed you.
A JavaScript bundle 404'd after a hosting update. The page loaded. The server returned 200. Your uptime tool saw nothing wrong. Meanwhile, your client's customers saw a blank checkout for three days.
Three days of lost checkout conversions. For a client doing $500/day, that's $1,500 in revenue — and your agency's credibility.
With Sitewatch
- Broken bundle detected within an hour
- Plain-English diagnosis and fix steps sent via Slack
- Branded incident report auto-generated on resolve
Deploy went out Friday at 5 PM. Homepage blank all weekend.
A Vercel build changed a bundle hash. The old filename 404s. No errors in the CI pipeline — the build succeeded. Your homepage showed a white screen for 60 hours before someone noticed Monday morning.
60 hours of a blank homepage. Every paid ad, every email campaign, every social post — all sending traffic to a broken page.
With Sitewatch
- Deploy hook triggers an instant check
- Missing bundle flagged with a pass/fail verdict
- Slack alert sent within minutes
Uptime green for 3 months. Client's CSS broken for 2 weeks.
Cloudflare served a stylesheet with the wrong MIME type after a cache rule change. The browser silently rejected it. The site loaded — without styles. Your uptime tool saw a 200 and a working server. Your client's visitors saw unstyled HTML.
Two weeks of unstyled pages. Visitors bounce in seconds. Paid traffic budget wasted on a site that looks broken.
With Sitewatch
- MIME mismatch detected on the next scheduled check
- Root cause: CDN Misconfiguration, 85% confidence
- Fix step delivered: "Clear the Cloudflare cache for this zone"
4 hours debugging. The answer was one alert away.
An API gateway returned a JSON error on your landing page URL. The page looked fine in some browsers (cached version) and broken in others. Your team spent half a day tracing the issue through logs, CDN configs, and deploy history.
4 hours of senior engineering time wasted. At $150/hr, that's $600 spent investigating what one alert would have told you.
With Sitewatch
- "Non-HTML Response" identified as the failure type
- Expected vs actual Content-Type shown in the alert
- Root cause in 60 seconds, not 4 hours
Start free — monitor in 60 seconds. No credit card required.
What you get
Stop finding out about broken sites from your clients
Whether you manage a portfolio of client sites or deploy your own product daily — breakage shouldn't be something you hear about secondhand.
Know about broken client sites before your clients do
A broken client site you don't know about is a client call you're not ready for. Sitewatch monitors checkout, login, and revenue pages across your entire portfolio — so you find out first, not your client.
- Monitor checkout, login, and revenue pages — not just the homepage
- Tag sites by client and see per-client health at a glance
- Incident reports and health summaries auto-generated and branded
- Business severity scoring — broken checkout = wake-up call, broken blog image = morning notification
Catch the failures that break your site while uptime says it's fine
Every broken JavaScript bundle is a silent conversion killer. Your server returns 200, your analytics show traffic, but nothing loads. Sitewatch fingerprints every asset and flags failures — even when your server says everything is fine.
- Asset fingerprinting catches hash mismatches after deploys
- Deploy hooks trigger instant checks after every ship
- Broken JS/CSS, missing images, 404 errors — all surfaced with evidence
- Reports show exactly what changed, when, and what to do about it
Verify every deploy automatically — no test scripts required
Paste a webhook URL into your CI/CD pipeline. Every deploy triggers an automatic check — Vercel, Netlify, GitHub Actions, or any platform with webhooks. Get a pass/fail/degraded verdict with a before/after diff showing exactly what changed.
- Pass/fail/degraded verdict after every deploy
- Before/after diff — asset counts, fingerprint changes, redirect shifts
- Zero-config setup — one webhook URL, no test scripts
- Incidents tagged with deploy context for instant debugging
Monitor the APIs your frontend depends on
APIs fail silently — wrong status codes, changed response structures, missing fields. Sitewatch monitors your endpoints and catches backend problems before they break the frontend.
- Validate response status codes and payload structure
- JSONPath matching to verify critical response fields
- Configurable severity thresholds per endpoint
No credit card required. Set up in 60 seconds.
Beyond uptime
Your current monitoring has a blind spot. Here's what it's missing.
Uptime tools check if your server responds. Sitewatch checks if your page actually works.
Catches what 200 OK hides
- Broken checkout and payment pages silently killing conversions
- Post-deploy breakage invisible until customers complain — or leave
Explains what broke in plain English
- Hours spent debugging costs billable time and delays client fixes
- Generic fix steps don't account for your actual tech stack
Alerts only when it's real
- Floods of alerts for the same underlying issue
- Woken up at 3 AM for a transient blip
One dashboard for every site
- No way to tag or group sites by client — just a flat list of URLs
- No single view of which client sites are healthy and which need attention
Reports that build client trust
- Writing incident summaries manually after every issue takes hours of agency time
- Hard to justify retainer fees when clients don't see the value of your monitoring
What happens when something breaks
From broken page to client report in minutes
Every check fingerprints your assets, traces redirects, and validates responses. When something breaks, you'll know in minutes — not when your client calls.
Detect
Scheduled checks and deploy hooks scan your pages for broken assets, MIME mismatches, redirect loops, and missing content. A 2-of-3 retry confirmation rules out transient blips. When Sitewatch alerts, it's confirmed.
Diagnose
Every failure is classified into one of 10 cause families — CDN Misconfiguration, Deployment Artifact, Redirect Misconfiguration, and more — with confidence scoring up to 90%. You get a plain-English diagnosis: what broke, what users see, and fix steps specific to your stack. 23 platforms supported.
Alert
The right person gets notified through the right channel — Slack, email, SMS, webhooks, PagerDuty, or Opsgenie. Business severity scoring adjusts priority based on page importance. A broken checkout page bypasses quiet hours. A broken blog image doesn't.
Report
When the incident resolves, a branded client report is auto-generated — timeline, root cause, fix applied, resolution status. Plain English, no jargon. Share as a PDF or unique link. Health summaries sent to clients monthly on all plans (weekly on Pro), automatically.
Uptime monitoring vs Sitewatch
You probably already have uptime monitoring. Here's what it's costing you.
Revenue pages protected
Server responds with 200 — broken checkout, login, and payment pages go undetected
Every asset on checkout, login, pricing, and landing pages validated on every check. Broken JS that kills conversions is caught before customers notice.
Time to understand the problem
"Site down" with a status code — you investigate from there
60 seconds. Plain-English diagnosis with root cause, affected pages, user impact, and stack-specific fix steps.
Alert fatigue
Single-check alerts — transient blips trigger pages at 3 AM
Near zero. 2-of-3 retry, fingerprint dedup, and 30-minute cooldown mean you only hear about real, confirmed issues.
Time to fix
Hours — you investigate from scratch across logs, CDN configs, and deploy history
Minutes. Prioritized fix steps specific to your platform — Vercel, Cloudflare, WordPress, Next.js, and 19 more.
Client trust
Manual status updates and incident summaries — hours of agency time per incident
Automatic. Branded reports generated on resolve. Monthly health summaries sent to clients with no manual effort.
Post-deploy confidence
No post-deploy checks — you hope nothing broke
Immediate. Webhook fires, check runs, pass/fail verdict delivered with before/after diff. Know in seconds, not hours.
Why Sitewatch exists
200 OK doesn't mean the site works.
After 15 years building sites for clients, the story was always the same: deploy goes live, monitoring stays green, client finds the problem first. Checkout broken, forms dead, scripts 404ing — all while the server returned 200 OK.
I built Sitewatch because nobody was checking what actually loaded in the browser. Now something does.
Nicky Christensen
Founder, Sitewatch
Pricing
Simple, transparent pricing
Start monitoring in minutes. No credit card required. Upgrade as you grow.
Free
Monitor your own projects for free.
- 1 site monitored
- 1 monitored page per site
- 30-min integrity checks
- 5-min ping checks
- 1 region (Europe)
- All 11 detection rules
- Plain-English diagnosis
- Business severity scoring
- Incident reports on resolve
- Monthly auto-reports
- Email alerts
- Evidence dashboard
- 7-day data retention
Starter
Everything you need to monitor client sites.
7-day free trial
- 25 sites monitored
- 5 monitored pages per site
- 15-min integrity checks (configurable)
- 5-min ping checks
- 1 region (Europe)
- 5 API monitors (every 6 hrs)
- Email, Slack & webhook alerts
- 3 deploy hooks (50/day)
- 1 public status page
- Monthly auto-reports
- 5 team members
- 30-day data retention
Pro
Built for agencies managing 50+ client sites.
7-day free trial
Everything in Starter, plus:
- 100 sites monitored
- 25 monitored pages per site
- 5-min integrity checks (configurable)
- 25 API monitors (30 min – 24 hrs)
- 2 regions (EU + US)
- All 6 alert channels incl. SMS (30/mo)
- Weekly + monthly auto-reports
- 10 deploy hooks (200/day)
- Unlimited status pages (advanced customization)
- Bundle reports
- Custom report branding
- 20 team members
- 90-day data retention
FAQ
Frequently asked questions
Everything you need to know about Sitewatch and website monitoring.
Uptime monitors only check if your server responds with a 200 status code. Sitewatch runs two types of checks on every site: ping checks (lightweight HTTP probe every 5 minutes for uptime tracking) and integrity checks (full page fetch that validates every asset, inspects headers, and compares against baselines). Broken JavaScript bundles, missing CSS files, MIME mismatches, and redirect loops can all happen while your server returns 200. We catch the failures that uptime tools miss.
Yes. Sitewatch fingerprints every JavaScript and CSS asset on your monitored pages. If a CDN goes down, a deploy breaks a bundle hash, or a third-party script returns a 404, we detect it within minutes and include the full evidence in your incident report.
Absolutely. Many websites rely on third-party scripts for analytics, chat widgets, payment forms, and more. Sitewatch monitors all assets loaded on your pages, including third-party resources, so you know immediately when an external dependency fails.
Sitewatch runs integrity checks on a configurable schedule — from every 5 minutes (Pro) to every 30 minutes (Free), plus 5-minute ping checks on all plans. When an issue is detected, alerts are sent immediately via your configured channels. Email is available on all plans. Starter adds Slack and webhooks. Pro adds PagerDuty, Opsgenie, and SMS (30/month). Most teams receive their first alert within minutes of an issue appearing.
Yes. Our Pro plan includes multi-region monitoring so you can verify that your sites work correctly for users across different geographies. This is especially useful for catching CDN issues that only affect certain regions.
Each incident report includes a plain-English diagnosis (what broke, what users see, how to fix it), affected assets with full URLs, HTTP status codes, business severity level, and a complete timeline. When an incident resolves, a branded client-ready report is auto-generated — choose between a non-technical client template or a detailed technical view. Share via PDF or email link.
Yes. Every incident auto-generates a branded report on resolve, designed for agencies to send directly to clients. The client template uses plain English — no technical jargon. Add your logo, brand colors, and optional agency notes. Share as a PDF or via a unique link — no login required for viewing.
Deploy hooks are webhooks you add to your CI/CD pipeline (Vercel, Netlify, GitHub Actions, or any platform that supports webhooks). When a deploy completes, the webhook triggers an immediate Sitewatch website check — so you know within seconds if something broke, instead of waiting for the next scheduled check.
When Sitewatch detects an issue, it automatically classifies the root cause into one of 10 cause families (like DNS resolution failure, CDN cache misconfiguration, or deployment artifact missing). Each classification includes a confidence score and evidence from the check. No configuration required — it works out of the box.
Sitewatch auto-detects 23 tech stacks including Next.js, Nuxt, Gatsby, WordPress, Shopify, Cloudflare, Vercel, Netlify, AWS CloudFront, Nginx, Apache, and more. When an issue is found, fix steps include platform-specific guidance — like clearing the Cloudflare cache or redeploying on Vercel.
You can click through a page and see if it looks right, but you can't see MIME mismatches by eye, you can't detect host drift from a browser tab, and you certainly can't check 50 sites every hour. Sitewatch verifies every linked asset's HTTP status and content type automatically — catching the silent failures that manual checks miss.
Hosting monitors infrastructure — server CPU, memory, and whether the process is running. They don't check whether your page actually works for visitors. A server returning 200 OK while serving broken JavaScript, missing stylesheets, or redirect loops is invisible to infrastructure monitoring. Sitewatch monitors the customer experience layer that hosting providers don't cover.
Instead of only monitoring the homepage, Sitewatch lets you monitor multiple pages per site — checkout, login, pricing, contact forms, or any page that matters to the business. Each page can be assigned a business importance level (critical, high, normal, low). The Free plan includes 1 page per site, Starter includes 5, and Pro includes 25.
When a deploy happens, Sitewatch automatically runs checks and produces a structured pass/fail/degraded verdict with a before/after comparison showing exactly what changed — asset counts, fingerprint diffs, redirect chain changes. No test scripts required. Just paste a webhook URL into your CI/CD pipeline.
Incident severity is adjusted based on the business importance of the affected page. A medium-severity issue on a checkout page marked as "critical" gets escalated to high severity and bypasses quiet hours. The same issue on a blog page stays medium. This means your team gets woken up for revenue-impacting failures — not blog image issues.
Sitewatch automatically sends branded health summary reports on a schedule — monthly on all plans (including Free), plus weekly on Pro. Each report shows uptime percentage, incidents detected and resolved, and overall site health. Clients view reports via a branded web link with no login required. Set it up once and it runs automatically.
How many broken pages is your uptime tool missing right now?
Add your first site. Sitewatch runs a full check in 60 seconds — broken assets, redirect failures, MIME errors, and everything else your uptime tool can't see.
Free plan available. No credit card required.