Watch for changes
developer-service.io loads faster with WebSpeed
Measured PageSpeed before and after WebSpeed optimization — no plugins, no migration.
Speed Index from a single check. Repeat checks of the same page typically differ by around 30%, so read the two times as a direction, not a precise multiplier.
From the measured LCP gain: −1.0 s.
Core Web Vitals are a Google ranking signal, but work as a “tiebreaker” — they matter most when two pages are roughly equal in relevance and content. The biggest SEO benefit comes from moving out of the Poor zone (score < 50).
From the measured LCP gain: −1.0 s.
Google / Deloitte (2019): 0.1 s improvement → +8% conversions in retail. Portent: each extra second of load time reduces conversion rate ~4%.
From the measured LCP gain: −1.0 s.
Based on Google data: pages loading in 3 s vs 1 s show ~32% higher bounce rate. Estimate scales proportionally to LCP improvement and is site-specific.
From the measured page weight: ≈ 5.9 → 0.45 g per visit.
Transferred bytes × ≈0.5 g of CO₂ per MB, a common average for networks and devices. The real figure depends on the hosting and the visitor’s connection.
Forecasts, not measurements: measured gains × published studies — tap any underlined label for the source.
Lighthouse recording of the original page under real desktop throttling. The right panel replays the same frames at the measured Speed Index ratio (1.2× faster). Cropped to the top 45% of the frame; measured to finish drawing at the same moment as the whole frame.
Fastest quarter 80+ · you 73
Fastest quarter 96+ · you 89
You 2.4 s — in the fastest quarter
You 0.6 s — in the fastest quarter
Fastest quarter ≤ 3.7 s · you 7.0 s
Fastest quarter ≤ 0.9 s · you 2.2 s
Fastest quarter ≤ 1.1 MB · you 11.8 MB
Fastest quarter ≤ 1.3 MB · you 11.8 MB
Based on 2818 WordPress sites WebSpeed has measured, as they are, without our optimization. Updated 8 Nov 2026.
Speed
what the visitor sees| Metric | Now | Fast | Δ |
|---|---|---|---|
| PageSpeed scoreblends the five below | 73 | 76 | +3 |
| First Contentful Paint. The moment the browser renders the first piece of real content — the first sign to the visitor that the page is loading.≤ 1.8s | 2.4 s | 2.0 s | −20% |
| Largest Contentful Paint. The time it takes for the largest image or text block in the viewport to render — one of Google's three Core Web Vitals.≤ 2.5s | 7.0 s | 6.1 s | −13% |
| How quickly the visible part of the page fills in during load, averaged over time — a lab metric that rewards showing content sooner.≤ 3.4s | 2.4 s | 2.0 s | −20% |
| Total Blocking Time. The total time the main thread was blocked by long tasks during load — the lab metric that stands in for real-world responsiveness.≤ 200ms | 0 ms | 0 ms | No change beyond run-to-run noise. |
| Cumulative Layout Shift. A score for how much visible content unexpectedly jumps around while the page loads — one of Google's three Core Web Vitals.≤ 0.1 | 0 | 0 | No change beyond run-to-run noise. |
| LCP breakdownobserved load, no throttling | |||
| What the largest visible element was — an image or a block of text. The two are sped up by different means. | Text | Text | same |
| Time until the first byte of the HTML arrived.TTFB | 2 ms | 2 ms | No change beyond run-to-run noise. |
| Time between the resource being ready and the element being painted — blocked by CSS, fonts or scripts.until it is painted | 180 ms | 240 ms | No change beyond run-to-run noise. |
Page weight
loaded during the test| Metric | Now | Fast | Δ |
|---|---|---|---|
| Files the browser downloaded during the test. | 30 | 12 | −18 |
| The page itself, before anything it references. | 19 KB | 112 KB | No change beyond run-to-run noise. |
| Scripts downloaded during the test. Fewer can mean deferred past the test window, not removed from the site. | 228 KB | 228 KB | No change beyond run-to-run noise. |
| Stylesheets downloaded during the test. | 248 KB | 381 KB | +68% |
| Web font files downloaded during the test. | 1128 KB | 1128 KB | No change beyond run-to-run noise. |
| Images downloaded during the test. Images below the fold may load later, after the test. | 2011.6 MB | 4666 KB | −94% |
| Third-partyother companies’ servers | |||
| Distinct third-party domains the page downloaded from — analytics, chat, embeds, fonts, CDNs. | 8 | 3 | −5 |
| Bytes downloaded from those third-party domains. | 10.7 MB | 874 KB | −92% |
What holds the main thread
Lighthouse attribution, lab runAlready on this site
Original page, before Fast- No speed tools recognisedNo caching plugin, CDN or speed host left a trace in the page’s code or headers
- Images are in modern formats and sized to the screenMissingLighthouse estimate: −3.0 s LCP
- No CSS or JS holds back the first paintMissingLighthouse estimate: −1.6 s LCP
- Static files are cached in the browserMissing
- Text stays visible while web fonts loadMissing
- CSS and JS are minifiedOK
- The page is compressed (gzip or brotli)OK
- Admin area
/wp-admin/and/wp-login.phppass through Fast unchanged and are never cached
Tools are recognised from the page’s code and response headers. A tool that leaves no trace there is not listed.
“OK” means Lighthouse found nothing to fix on the original page — not that someone switched it on.
Savings are Lighthouse’s own estimates for the original page, not measured by us.
Speed
what the visitor sees| Metric | Now | Fast | Δ |
|---|---|---|---|
| PageSpeed scoreblends the five below | 89 | 97 | +8 |
| First Contentful Paint. The moment the browser renders the first piece of real content — the first sign to the visitor that the page is loading.≤ 1.8s | 0.6 s | 0.5 s | No change beyond run-to-run noise. |
| Largest Contentful Paint. The time it takes for the largest image or text block in the viewport to render — one of Google's three Core Web Vitals.≤ 2.5s | 2.2 s | 1.2 s | −44% |
| How quickly the visible part of the page fills in during load, averaged over time — a lab metric that rewards showing content sooner.≤ 3.4s | 0.6 s | 0.5 s | No change beyond run-to-run noise. |
| Total Blocking Time. The total time the main thread was blocked by long tasks during load — the lab metric that stands in for real-world responsiveness.≤ 200ms | 0 ms | 0 ms | No change beyond run-to-run noise. |
| Cumulative Layout Shift. A score for how much visible content unexpectedly jumps around while the page loads — one of Google's three Core Web Vitals.≤ 0.1 | 0 | 0 | No change beyond run-to-run noise. |
| LCP breakdownobserved load, no throttling | |||
| What the largest visible element was — an image or a block of text. The two are sped up by different means. | Text | Text | same |
| Time until the first byte of the HTML arrived.TTFB | 2 ms | 3 ms | No change beyond run-to-run noise. |
| Time between the resource being ready and the element being painted — blocked by CSS, fonts or scripts.until it is painted | 348 ms | 399 ms | No change beyond run-to-run noise. |
Page weight
loaded during the test| Metric | Now | Fast | Δ |
|---|---|---|---|
| Files the browser downloaded during the test. | 30 | 26 | −4 |
| The page itself, before anything it references. | 19 KB | 112 KB | No change beyond run-to-run noise. |
| Scripts downloaded during the test. Fewer can mean deferred past the test window, not removed from the site. | 228 KB | 228 KB | No change beyond run-to-run noise. |
| Stylesheets downloaded during the test. | 248 KB | 381 KB | +71% |
| Web font files downloaded during the test. | 1129 KB | 1129 KB | No change beyond run-to-run noise. |
| Images downloaded during the test. Images below the fold may load later, after the test. | 2011.6 MB | 127.1 MB | −39% |
| Third-partyother companies’ servers | |||
| Distinct third-party domains the page downloaded from — analytics, chat, embeds, fonts, CDNs. | 8 | 4 | −4 |
| Bytes downloaded from those third-party domains. | 10.7 MB | 6.7 MB | −38% |
What holds the main thread
Lighthouse attribution, lab runAlready on this site
Original page, before Fast- No speed tools recognisedNo caching plugin, CDN or speed host left a trace in the page’s code or headers
- Images are in modern formats and sized to the screenMissingLighthouse estimate: −500 ms LCP
- No CSS or JS holds back the first paintMissingLighthouse estimate: −300 ms LCP
- Static files are cached in the browserMissing
- Text stays visible while web fonts loadMissing
- CSS and JS are minifiedOK
- The page is compressed (gzip or brotli)OK
- Admin area
/wp-admin/and/wp-login.phppass through Fast unchanged and are never cached
Tools are recognised from the page’s code and response headers. A tool that leaves no trace there is not listed.
“OK” means Lighthouse found nothing to fix on the original page — not that someone switched it on.
Savings are Lighthouse’s own estimates for the original page, not measured by us.
PageSpeed scores are measured by Google PageSpeed Insights and are not guaranteed: they vary run to run and depend on network, device and third-party code. How to read this report
PageSpeed 89 → 97 on desktop, the screen fills in 2.0 s instead of 2.4 s on mobile, the page weighs 915 KB instead of 11.8 MB and the main content appears in 1.2 s instead of 2.2 s on desktop.
Still on the site itself: images are not in modern formats or sized to the screen, CSS or JS holds back the first paint, static files are not cached in the browser, and 1 more — listed under “Already on this site” in Speed metrics.
Edit the page code yourself — the report lists the changes. Get this speed for your visitors — WebSpeed Fast, 14 days free.
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The before/after check is free to run; it isn’t one of these plans. Choose a plan when you’re ready to make the speed-up permanent — or buy the report once and apply it yourself.
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