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Redenn Informatics

Support · Built in on Redenn sites; audits and fixes on other sites quoted

Website performance measured the way Google measures it

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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 pass by default; 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

  1. 01

    Measure

    Field data from Search Console where available, plus lab runs on a throttled mobile profile.

  2. 02

    Diagnose

    Each metric traced to its cause, ranked by impact and effort.

  3. 03

    Fix

    Changes made at the source: images, scripts, fonts, rendering, server response.

  4. 04

    Verify

    Re-measured against the thresholds and reported with the before-and-after numbers.

Who 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 pass by default; if one does not, fixing it is covered by maintenance, not billed.

The thresholds

Google's published thresholds, measured at the 75th percentile of page loads. Source: web.dev, accessed 2026-09-24.

Core Web Vitals thresholds
MetricWhat it measuresGood
Largest Contentful Paint (LCP)How long until the main content is visible2.5 seconds or less
Interaction to Next Paint (INP)How quickly the page responds to a tap or click200 milliseconds or less
Cumulative Layout Shift (CLS)How much the layout moves while loading0.1 or less

What usually slows a site

Common causes and fixes
CauseSymptomFix
Oversized imagesSlow LCP on mobileResize, compress, modern formats, lazy load below the fold
Third-party scripts (chat, tracking, embeds)Poor INP, slow loadRemove unused tags; defer or load on interaction
Web fonts loaded lateText flashes, CLSPreload, size-adjusted fallbacks
Elements without reserved spaceCLSSet dimensions for images, ads and embeds
Slow server responseEverything waitsStatic generation or caching at the edge
Plugin stack on WordPressAll of the aboveTrim plugins, or WordPress Modernization from CA$499

What it costs

Performance is built into every Redenn site and kept there by maintenance. 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 cheaper than repeated tuning.

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.

Support it. With website performance.

Configure a website in minutes, or ask for a written quote. Quotes arrive within two business days.