Rayhan Uddin

Stop guessing about your site’s performance. Rayetun Site Monitor gives you real-user Core Web Vitals data collected directly from your visitors’ browsers — no external account, no API key, no tracking from third parties.
Activate it. Visit a few pages. Within seconds you’ll see live performance metrics on your WordPress dashboard.
<h3>⚡ Why This Plugin?</h3>
Unlike Search Console (which shows aggregated, delayed data), Rayetun Site Monitors every page in real-time from the moment of activation. No sample-size thresholds. No waiting for Google to collect data. Just instant, actionable insights.
<ul>
<li>🎯 Zero configuration — activate and data flows immediately</li>
<li>📊 Real users, real data — field metrics from actual visitors (not synthetic robots)</li>
<li>🔒 Your data stays yours — everything lives in your WordPress database</li>
<li>⚡ No impact on performance — sub-4KB beacon, loaded with defer, zero blocking</li>
<li>🔐 GDPR-friendly — no cookies, no third-party data sharing</li>
</ul>
<h3>📈 What It Measures</h3>
The plugin tracks all five Core Web Vitals and presents them with Google’s official thresholds:
 Metric 
 Target 
 What It Means
 LCP — Largest Contentful Paint 
 ≤ 2.5s 
 How fast your main content appears
 CLS — Cumulative Layout Shift 
 ≤ 0.1 
 How stable your page layout stays
 INP — Interaction to Next Paint 
 ≤ 200ms 
 How responsive your site feels to clicks
 FCP — First Contentful Paint 
 ≤ 1.8s 
 How fast anything appears on screen
 TTFB — Time to First Byte 
 ≤ 800ms 
 How quick your server responds
<h3>🖥️ The Dashboard</h3>
A single glance tells you everything about your site’s performance:
<ul>
<li>Score cards — P75 value per metric with color-coded Good / Needs Improvement / Poor badges</li>
<li>Distribution bars — see at a glance what % of page loads fall into each rating band</li>
<li>Sparkline trend charts — watch how each metric improves (or worsens) over 7, 14, or 30 days</li>
<li>Slowest Pages ranking — which URLs need the most work, sorted by LCP</li>
<li>Device split — toggle between All Devices, Mobile Only, or Desktop Only</li>
<li>Date range & URL filters — drill into specific time periods and individual pages</li>
</ul>
<h3>🔍 LCP Element Attribution</h3>
“My LCP is slow. But what is slow?”
Rayetun Site Monitor answers that automatically. The beacon captures the exact DOM element responsible for Largest Contentful Paint — whether it’s a hero image, a video embed, a heading, or a background. See the element tag, CSS class, and image source right alongside the metric.
No guesswork. No DevTools digging. Just answers.
<h3>🧪 PageSpeed Insights Lab Tests</h3>
Click PSI ↗ on any page row and Google’s lab test runs instantly inside your WordPress admin. Compare your real-user data (Field LCP P75) with Google’s synthetic lab test in a single view:
<ul>
<li>Lab performance score</li>
<li>Lab metrics: LCP, FCP, CLS, TBT</li>
<li>Field LCP P75 (real-user percentile)</li>
<li>Failed Opportunities list (unused JS, render-blocking resources, unoptimized images)</li>
<li>One-hour result caching to stay under API limits</li>
</ul>
No plugin configuration needed — the plugin works without an API key. Add a free key to get 25,000 requests/day instead of 25.
<h3>📬 Alerts & Notifications</h3>
Email Digests 
* Daily or weekly summaries with P75 scores and trend arrows 
* See which pages improved and which got worse at a glance
Threshold Alerts 
* Set performance targets per metric 
* Instant email notification when any page exceeds your limit 
* Never miss a regression
Webhook Notifications 
* POST alerts to Slack, Discord, Zapier, Make, or any HTTP endpoint 
* Perfect for automating performance reviews in team workflows
<h3>📤 Export to CSV</h3>
Download raw performance data for any date range and device filter. Up to 50,000 rows, compatible with: 
* Excel / Google Sheets 
* BI tools (Tableau, Power BI, Looker) 
* Custom data analysis pipelines
<h3>🔗 WordPress Integrations</h3>
Site Health 
Core Web Vitals status appears in Tools → Site Health so you see performance right alongside other site diagnostics.
Posts & Pages Column 
Every post and page list shows a quick Core Web Vitals summary: 
* Color-coded metric badges (green = good, amber = needs work, red = poor) 
* Progress bars showing how close you are to targets 
* Quick-link to run a PSI lab test
Dashboard Widget 
P75 scores for LCP, INP, and CLS with trend arrows on your WordPress home dashboard. Monitor performance without leaving the home screen.
<h3>⚡ Performance & Privacy</h3>
Zero Impact on Your Site Speed 
* Front-end beacon: < 4 KB (minified + gzipped) 
* Loaded with <code>defer</code> — completely non-blocking 
* Uses browser’s native PerformanceObserver API — no external libraries 
* Runs after your page is fully loaded
Your Data Stays Yours 
* All performance metrics stored in your own WordPress database 
* Zero cookies, zero tracking pixels 
* Beacon sends data only to your site’s REST API (not to Google, not to us, not to anyone) 
* GDPR-compatible when used appropriately
<h3>External Services</h3>
This plugin contacts external services only when explicitly triggered by an admin action or through an opt-in configuration. No data is transmitted automatically in the background.
<h4>🔬 Google PageSpeed Insights API</h4>
Triggered by: Clicking the PSI ↗ button on a page row (manual, admin-only action)
Data sent: The page URL being tested (e.g., <code>https://example.com/my-page/</code>). No visitor data, no personal information.
Recipient: Google LLC
Endpoints: 
– <code>https://www.googleapis.com/pagespeedonline/v5/runPagespeed</code> — API endpoint 
– <code>https://pagespeed.web.dev/</code> — report viewer (browser link only, no plugin data sent)
Privacy: <a href="https://policies.google.com/privacy" rel="nofollow ugc">Google Privacy Policy</a> | <a href="https://policies.google.com/terms" rel="nofollow ugc">Terms of Service</a>
<h4>📚 Google web.dev Documentation Links</h4>
The WordPress Site Health integration displays links to Google’s public Core Web Vitals documentation. These are standard hyperlinks that open in a browser tab — the plugin sends no HTTP requests to these URLs.
<ul>
<li><code>https://web.dev/articles/lcp/</code></li>
<li><code>https://web.dev/articles/cls/</code></li>
<li><code>https://web.dev/articles/inp/</code></li>
<li><code>https://web.dev/articles/fcp/</code></li>
<li><code>https://web.dev/articles/ttfb/</code></li>
</ul>
<h4>🔔 Webhook Notifications (opt-in)</h4>
Triggered by: Site admin enabling the feature and configuring a URL in Settings → Webhook Notifications, and a performance threshold being exceeded
Data sent: Site name, site URL, metric name, P75 value, threshold, and the page URL that triggered the alert. No visitor data.
Recipient: The URL configured by the site admin (Slack workspace, Discord server, Zapier account, custom server, etc.). The plugin author has no access to webhook destinations.
<h4>🏠 Front-end Beacon (your site only)</h4>
The JavaScript beacon collects performance data only from your own site’s REST API at <code>/wp-json/rayetun-site-monitor/v1/collect</code>. Zero data is sent to external servers. Visitor metrics stay on your server.
<h3>Support</h3>
Found a bug? Have a feature request? Visit the <a href="https://wordpress.org/support/plugin/rayetun-site-monitor/" rel="ugc">plugin support forum</a> on WordPress.org.
If it’s urgent please contact: rayetun2.0@gmail.com

Rayetun Site Monitor

Real-user performance monitoring for Core Web Vitals. LCP, CLS, INP, FCP & TTFB dashboards with PSI lab tests, alerts & webhooks — zero config.

Pierre Lannoy

Hosterra

Truthful user experience and browsing performances monitoring.
Vibes is a robust user experience and browsing performances monitoring solution that analyzes perceived performances from users’ viewpoint.
It is fully autonomous – does not rely on external services and does not require any API keys, works on any type of hosting and in any type of environment – including staging, intranets or password protected sites.
By continuously monitoring user experience, Vibes can report:
<ul>
<li>navigation performance KPIs per pages – like latency, redirections, browser caching hit rates, etc.;</li>
<li>network timelines as if you were in the dev tools of your users’ browsers;</li>
<li>resources details – like initiators, protocols, mime types, average sizes, etc.;</li>
<li>Web Vitals: LCP, FID, CLS, FCP and TTFB.</li>
</ul>
It can segment all this data per:
<ul>
<li>user type (anonymous vs. authenticated);</li>
<li>channel (frontend vs. backend);</li>
<li>country (requires the free <a href="https://wordpress.org/plugins/ip-locator/" rel="ugc">IP Locator</a> plugin);</li>
<li>device classes and types (requires the free <a href="https://wordpress.org/plugins/device-detector/" rel="ugc">Device Detector</a> plugin).</li>
</ul>
Vibes supports multisite report delegation (see FAQ).
Vibes supports WP-CLI commands to:
<ul>
<li>display (past or current) performances signals in console – see <code>wp help vibes tail</code> for details;</li>
<li>toggle on/off main settings – see <code>wp help vibes settings</code> for details.</li>
</ul>
For a full help on WP-CLI commands in Vibes, please <a href="https://perfops.one/vibes-wpcli" rel="nofollow ugc">read this guide</a>.
<blockquote>
Vibes is part of <a href="https://perfops.one/" rel="nofollow ugc">PerfOps One</a>, a suite of free and open source WordPress plugins dedicated to observability and operations performance.
</blockquote>
Vibes is a free and open source plugin for WordPress. It integrates many other free and open source works (as-is or modified). Please, see ‘about’ tab in the plugin settings to see the details.
<h4>Support</h4>
This plugin is free and provided without warranty of any kind. Use it at your own risk, I’m not responsible for any improper use of this plugin, nor for any damage it might cause to your site. Always backup all your data before installing a new plugin.
Anyway, I’ll be glad to help you if you encounter issues when using this plugin. Please read carefully the FAQ at the bottom of this page before requesting support.
<h4>Donation</h4>
If you like this plugin or find it useful and want to thank me for the work done, please consider making a donation to <a href="https://www.laquadrature.net/en" rel="nofollow ugc">La Quadrature Du Net</a> or the <a href="https://www.eff.org/" rel="nofollow ugc">Electronic Frontier Foundation</a> which are advocacy groups defending the rights and freedoms of citizens on the Internet. By supporting them, you help the daily actions they perform to defend our fundamental freedoms!

Vibes

Great plugin

Truthful user experience and browsing performances monitoring.

Rayetun Site Monitor vs Vibes