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Website performance measured the way Google measures it
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- Published
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The short answer
Website performance is how fast a page loads and responds on a real phone, measured by Google's Core Web Vitals: Largest Contentful Paint, Interaction to Next Paint and Cumulative Layout Shift at the 75th percentile of page loads. Redenn sites are built to be fast on a real phone, and we measure them before launch; for existing sites, we audit, quote and fix the causes rather than adding a caching plugin.
What changes
- Pages that render their main content quickly on mid-range phones over mobile data
- Buttons and menus that respond without a delay
- Layouts that do not jump as images and fonts load
- Fewer visitors leaving before the page finishes
What is included
- Measurement with field data where available and lab tests on real device profiles
- Diagnosis by cause: images, scripts, fonts, third-party tags, server response
- Fixes applied in the codebase, not layered on with plugins
- Image optimization, lazy loading and modern formats
- Third-party script audit and removal or deferral
- Before-and-after report against the thresholds
How it works
- 01
Measure
Field data from Search Console where available, plus lab runs on a throttled mobile profile.
- 02
Diagnose
Each metric traced to its cause, ranked by impact and effort.
- 03
Fix
Changes made at the source: images, scripts, fonts, rendering, server response.
- 04
Verify
Re-measured against the thresholds and reported with the before-and-after numbers.
Price
Included in Redenn builds and measured before launch; audits and fixes on other sites quoted
Prices are in Canadian dollars and exclude taxes. Any tax that applies is shown separately on your invoice.
Full price listWho this is for
Owners of sites that feel slow on a phone, sites flagged in Search Console's Core Web Vitals report, and sites where visitors leave before the first screen loads. Restaurants, realtors and clinics with image-heavy pages are typical, as are older WordPress sites with many plugins.
Redenn-built sites are measured before launch. If a site we built gets slower after launch, the first fix is free; later fixes are quoted in writing.
The thresholds
Google's published thresholds, measured at the 75th percentile of page loads. Source: web.dev, accessed 2026-09-24.
| Metric | What it measures | Good |
|---|---|---|
| Largest Contentful Paint (LCP) | How long until the main content is visible | 2.5 seconds or less |
| Interaction to Next Paint (INP) | How quickly the page responds to a tap or click | 200 milliseconds or less |
| Cumulative Layout Shift (CLS) | How much the layout moves while loading | 0.1 or less |
What usually slows a site
| Cause | Symptom | Fix |
|---|---|---|
| Oversized images | Slow LCP on mobile | Resize, compress, modern formats, lazy load below the fold |
| Third-party scripts (chat, tracking, embeds) | Poor INP, slow load | Remove unused tags; defer or load on interaction |
| Web fonts loaded late | Text flashes, CLS | Preload, size-adjusted fallbacks |
| Elements without reserved space | CLS | Set dimensions for images, ads and embeds |
| Slow server response | Everything waits | Static generation or caching at the edge |
| Plugin stack on WordPress | All of the above | Trim plugins, or WordPress Modernization from CA$499 |
What it costs
Every Redenn site is built to be fast on a real phone and measured before launch. If a site we built gets slower after launch, the first fix is free; later fixes are quoted in writing. For sites Redenn did not build, the audit and fixes are quoted after measurement. Where the platform itself is the cause, WordPress Modernization from CA$499 is often a more durable fix than repeated tuning.
Prices are in Canadian dollars and exclude taxes. Any tax that applies is shown separately on your invoice.
Limitations and honest notes
Speed is one of many ranking considerations, and Redenn does not guarantee rankings from performance work. The reliable benefit is to visitors, who stay when pages respond.
Some causes are outside our control: an embedded widget from a vendor, images uploaded at full camera size after handover, or a builder platform that does not allow the fix. The audit says which.
Field data needs enough traffic to exist. Small sites are measured with lab tests, which approximate rather than replicate real visitors.
Questions
Does page speed affect Google rankings?
Google uses page experience signals including Core Web Vitals among many factors. Passing does not guarantee rankings; failing badly can hold a page back, and slow pages lose visitors regardless.
How do you measure performance?
Field data from Search Console's Core Web Vitals report where the site has enough traffic, plus lab tests on a throttled mobile profile for diagnosis.
Can you make a WordPress site fast?
Often, by trimming plugins and fixing images and scripts. When the plugin stack is the problem, WordPress Modernization is the more durable fix.
What about images I upload later?
Redenn builds resize and compress images automatically at build or upload time. On other platforms, we set up the same behaviour where the platform allows it.
Related
Services
- Technical SEOTitles, descriptions, canonical tags, sitemap, robots and structured data, set up and checked on a Redenn build.
- WordPress ModernizationYour WordPress content rebuilt on Next.js, with a redirect map and Search Console handover.
- Website HostingGlobal CDN, automatic SSL and monitoring, in tiers from static brochure sites to managed applications.
- Conversion OptimizationMeasure where visitors hesitate, fix it, and track calls and forms; included in Search Everywhere or quoted standalone.
- Website MaintenanceMonthly updates, backups, monitoring and fixes, included with Business hosting and above; larger work quoted.
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