Tools 2026

How to Speed Up
Your Blog
A Practical Core Web Vitals (LCP, INP, CLS) Guide

A slow blog gets closed before it gets read. Google's official thresholds and the fixes that work
2.5s
LCP "good" threshold (or less)
200ms
INP "good" threshold (or less)
0.1
CLS "good" threshold (or less)
9 slides
2

Why speed decides your results

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🚪
The gatekeeper:a slow page gets closed before it gets read — before content quality even matters
🔗
Heavier stakes for affiliates:lose readers at the front door and you lose the clicks and signups behind them too
🔍
Google considers it:Core Web Vitals are one of the factors ranking systems take into account (official docs)
💡 Speed work raises the conversion rate of every article — without publishing a new one
3

The 3 metrics and thresholds

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MetricWhat it measuresGoodPoor
LCPTime until main content appears≤ 2.5s> 4s
INPResponse to taps and clicks≤ 200ms> 500ms
CLSUnexpected layout shift≤ 0.1> 0.25
📌 Assessed at the 75th percentile of visits. Source: web.dev / Search Console Help (Google official)
4

Measure with PageSpeed Insights

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📱
Check Mobile first:most readers are on phones; mobile and desktop are scored separately
👥
Field data is the real score:actual visitors' experience is what the evaluation uses; lab data is for diagnosis
📋
"Opportunities" = your to-do list:it names exactly what to fix
💡 For the whole site, use Search Console's Core Web Vitals report — it sorts pages in bulk
5

Slim down images: 4 STEPs

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STEP1
Resize to display size (shrink to 1–2x the display width before uploading)
STEP2
Compress and convert to WebP (free tools like Squoosh or TinyPNG)
STEP3
Lazy-load below-the-fold images with loading="lazy"
STEP4
Always set width / height attributes (also prevents CLS)
⚠️ Don't lazy-load first-screen images (your likely LCP element) — it backfires
6

Cut unnecessary scripts

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🧹
Audit your plugins:deactivate and delete the unused and the duplicated
📺
Minimize social embeds:X and YouTube embeds are heavier than they look — a screenshot plus a link often does the job
🏷️
Tidy tags and fonts:remove stale tracking tags; trim web-font families and weights
💡 PSI's "Reduce unused JavaScript" names the heavy offenders for you
7

Fix the mid-read jump (CLS)

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🖼️
Width / height on every image:reserve the space first and the biggest cause of shifting disappears
📐
Reserve ad and banner heights:late-loading slots should never push the body text down
🚫
No late-arriving elements up top:overlay notice bars instead of inserting them above content
💡 CLS causes are easy to pin down, and the fixes keep paying off — clear them in one weekend
8

Work order and monthly routine

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1
Measure your homepage and top articles with PageSpeed Insights; note the numbers
2
Apply fixes in order: images → unnecessary scripts → CLS
3
Re-measure and confirm. Then make it a monthly checkpoint habit
💡 Speed erodes as articles and images pile up — run it as a routine, alongside rewrites

Blog speed improvement — Summary

1
"Good" means LCP ≤ 2.5s, INP ≤ 200ms, CLS ≤ 0.1 (Google official, 75th-percentile assessment)
2
Measure for free with PageSpeed Insights and Search Console — numbers, not gut feeling
3
Images first: resize, compress, WebP, and lazy-load (everything except the first screen)
4
Speed is the foundation that keeps readers. Revenue comes from the articles and referral paths on top
Read the FX affiliate beginner's guide →