GITNUXREPORT 2026

Technical Seo Statistics

Technical SEO failures waste crawl budget and slow page performance significantly.

Rajesh Patel

Team Lead & Senior Researcher with over 15 years of experience in market research and data analytics.

First published: Feb 13, 2026

Our Commitment to Accuracy

Rigorous fact-checking · Reputable sources · Regular updatesLearn more

Statistic 1

Google: LCP under 2.5s needed for good user experience; only 45% pass.

Statistic 2

HTTP Archive Q4 2023: 55% of desktop pages have good LCP (<2.5s).

Statistic 3

Google Search Console: Sites fixing CLS >0.1 see 12% ranking uplift.

Statistic 4

DebugBear: FID replaced by INP; 30% of sites have poor INP >200ms.

Statistic 5

Web.dev report: 24% of mobile pages fail LCP metric entirely.

Statistic 6

Chrome UX Report: CLS affects 15% of sessions on news sites.

Statistic 7

Google: Optimizing Largest Contentful Paint improves pass rate by 28%.

Statistic 8

RUM data from 2023: INP poor on 40% of e-com navigation pages.

Statistic 9

Lighthouse scores: 62% of sites score <50 on CWV cumulatively.

Statistic 10

Google: CLS under 0.1 passes 68% of top sites post-2021 update.

Statistic 11

Treo audit: Fixing hero images boosts LCP by 1.2s on 200 sites.

Statistic 12

WebPageTest: Font display swap reduces CLS by 45% incidents.

Statistic 13

Google: Cumulative Layout Shift impacts 8% bounce rate increase.

Statistic 14

CrUX dashboard: 35% mobile origins fail all three CWV metrics.

Statistic 15

DebugBear: Main-thread work >50ms causes 22% INP failures.

Statistic 16

Google: Video LCP optimization passes 19% more pages.

Statistic 17

HTTP Archive: Desktop INP good on 72%, mobile only 52%.

Statistic 18

Pagelocity: CWV fixes correlate with 14% traffic gain.

Statistic 19

Google: 75th percentile LCP 4s on failing mobile pages.

Statistic 20

In a study of 1 million pages, Ahrefs found that 41% of URLs were not indexed by Google despite being canonicalized, highlighting crawl budget inefficiencies.

Statistic 21

SEMrush analysis of 200,000 domains revealed that sites with over 10,000 pages had 23% of their content not indexed due to duplicate URLs.

Statistic 22

Google's Search Console data from 2023 shows that 15% of indexing requests fail due to robots.txt blocks on 500,000+ sites.

Statistic 23

Moz study indicated that 27% of top 10 SERP pages had crawl errors preventing full indexing, based on 50k domains.

Statistic 24

Backlinko research on 11.8 million Google search results found that 62% of non-indexed pages lacked internal links.

Statistic 25

Ahrefs 2024 report states that pages with JavaScript rendering issues account for 19% of indexing failures across 2M pages.

Statistic 26

SEMrush's 2023 sensor study showed 34% of e-commerce sites block CSS/JS, causing 12% indexing drops.

Statistic 27

Google Webmaster Hangout transcript notes 8.5% average noindex rate on enterprise sites due to meta tags.

Statistic 28

Screaming Frog audit of 10k sites found 21% had orphan pages not crawlable, impacting indexing by 15%.

Statistic 29

Search Engine Journal survey: 29% of SEO pros report crawl budget as top indexing barrier for large sites.

Statistic 30

Ahrefs data: Sites updating sitemaps weekly see 17% faster indexing for new pages vs monthly.

Statistic 31

SEMrush tool insights: 43% of blocked resources in robots.txt lead to partial indexing on 100k sites.

Statistic 32

Google's John Mueller: 25% of index coverage issues stem from duplicate content parameters.

Statistic 33

Moz Open Site Explorer: 18% of domains have canonicalization mismatches causing index dilution.

Statistic 34

Backlinko: 36% improvement in indexing after fixing 301/302 redirect chains on 5k sites.

Statistic 35

Ahrefs: 14% of top pages use hreflang incorrectly, blocking international indexing.

Statistic 36

SEMrush: Pagination issues prevent indexing of 22% of blog series pages.

Statistic 37

Google: Server errors (5xx) cause 9% of daily crawl blocks on monitored sites.

Statistic 38

Sitebulb analysis: 31% of sites have excessive redirects, wasting 20% crawl budget.

Statistic 39

DeepCrawl study: AJAX-loaded content fails indexing 28% of the time without SSR.

Statistic 40

61% of users are unlikely to return to a mobile site taking >3s to load, per Google DoubleClick.

Statistic 41

Google's Mobile-Friendly Test: Only 58% of sites pass fully in 2023.

Statistic 42

AMP reports: Accelerated pages load 4x faster, 36% search boost.

Statistic 43

StatCounter: 56.5% global traffic is mobile as of 2024.

Statistic 44

Google MFI update 2015: Mobile rankings dropped 20% for non-responsive sites.

Statistic 45

Responsive design: 94% prefer it, boosting conversions 15%, per Media Genesis.

Statistic 46

Touch-friendly buttons: <48px cause 25% higher bounce on mobile.

Statistic 47

Google: Viewport meta tag missing on 12% of mobile pages.

Statistic 48

Adobe: Mobile speed 1s faster = 27% repeat visit increase.

Statistic 49

Mobile-first indexing: 70% sites optimized post-2019 rollout.

Statistic 50

SE Ranking: Mobile CTAs above fold lift conversions 10%.

Statistic 51

Google: Horizontal scroll issues fail 18% of mobile audits.

Statistic 52

Zippfizz: Mobile font size <16px increases abandonment 19%.

Statistic 53

Core Web Vitals mobile pass rate: 48% vs 65% desktop.

Statistic 54

Swipe navigation: Improves engagement 22% on mobile apps/sites.

Statistic 55

Popup blockers: 40% mobile users block intrusive popups.

Statistic 56

Google's TTFB mobile threshold <600ms; 55% exceed.

Statistic 57

Thumb zone design: 70% taps in lower screen area.

Statistic 58

PWA adoption: 12% conversion lift for mobile users.

Statistic 59

In Google's 2023 data, 52% of mobile users abandon sites taking over 3 seconds to load, directly impacting rankings.

Statistic 60

Akamai report: 40% of users leave if load time exceeds 3 seconds on desktop.

Statistic 61

Google study on 11k searches: Top results load 0.45s faster than average.

Statistic 62

Pingdom analysis: Median load time for top 100 e-com sites is 3.2s, with 1s underperformers.

Statistic 63

WebPageTest data: 75% of page load time is front-end optimized poorly on 10k sites.

Statistic 64

Google's PageSpeed Insights: Sites with score >90 rank 2.5x higher.

Statistic 65

GTmetrix report: Image optimization reduces load time by 34% on average for blogs.

Statistic 66

HTTP Archive 2023: 70% of sites use uncompressed images >100KB, adding 2s delay.

Statistic 67

Dareboost study: Third-party scripts add 1.5s to 62% of top sites' load times.

Statistic 68

Google: Critical rendering path optimization cuts load time by 25% for JS-heavy sites.

Statistic 69

Portent analysis: 1s delay in load time = 7% conversion drop for e-com.

Statistic 70

Cloudflare: Minifying CSS/JS reduces size by 23%, speeding up by 0.8s.

Statistic 71

Google recommends <100ms TTFB; only 41% of sites achieve this per Sucuri.

Statistic 72

Web.dev: Lazy loading images improves performance by 20% on image-rich pages.

Statistic 73

Kinsta study: CDN usage boosts speed by 300ms globally for 50k sites.

Statistic 74

Uptrends: GZIP compression saves 70% bandwidth, cutting load by 1.2s.

Statistic 75

Google: Preconnect to origins reduces latency by 150ms on average.

Statistic 76

Radware report: 53% bounce rate for pages >5s load on mobile.

Statistic 77

SOASTA: Every 100ms slower = 1% sales loss for retail sites.

Statistic 78

Schema.org: Sites with structured data get 30% more rich snippets.

Statistic 79

Google's 2023 data: 8% of top results have rich results from schema.

Statistic 80

Searchmetrics: Schema boosts CTR by 20-30% for reviews.

Statistic 81

Ahrefs study: 37% of top 100 use FAQ schema effectively.

Statistic 82

SEMrush: Product schema increases impressions 17%.

Statistic 83

Google Rich Results Test: 25% markup errors on submitted pages.

Statistic 84

Merkle study: Schema sites rank 4 positions higher avg.

Statistic 85

Yoast: Breadcrumb schema used on 41% top e-com sites.

Statistic 86

Local schema: Boosts map pack visibility by 35%.

Statistic 87

Google: HowTo schema eligibility on 12% of tutorial pages.

Statistic 88

Schema App: Event schema CTR +25% vs non-marked.

Statistic 89

Bing: Structured data improves snippets 15% more often.

Statistic 90

Rakuten: Recipe schema drives 20% more traffic.

Statistic 91

Google: Organization schema verifies authorship 28% better.

Statistic 92

SEMrush Sensor: Post-schema update, impressions +11% avg.

Statistic 93

VideoObject schema: 8.4% CTR lift per BrightEdge.

Statistic 94

Article schema: Preferred for news, 22% rich result rate.

Statistic 95

JobPosting schema: Fills 40% faster per Indeed data.

Statistic 96

Course schema: Enhances education SERPs 18%.

1/96

Sources

Trusted by 500+ publications

+497

Behind a shocking statistic where 41% of canonicalized pages go unindexed, lies a blueprint for conquering your site’s hidden technical SEO problems and unlocking faster growth.

Key Takeaways

In a study of 1 million pages, Ahrefs found that 41% of URLs were not indexed by Google despite being canonicalized, highlighting crawl budget inefficiencies.
SEMrush analysis of 200,000 domains revealed that sites with over 10,000 pages had 23% of their content not indexed due to duplicate URLs.
Google's Search Console data from 2023 shows that 15% of indexing requests fail due to robots.txt blocks on 500,000+ sites.
In Google's 2023 data, 52% of mobile users abandon sites taking over 3 seconds to load, directly impacting rankings.
Akamai report: 40% of users leave if load time exceeds 3 seconds on desktop.
Google study on 11k searches: Top results load 0.45s faster than average.
Google: LCP under 2.5s needed for good user experience; only 45% pass.
HTTP Archive Q4 2023: 55% of desktop pages have good LCP (<2.5s).
Google Search Console: Sites fixing CLS >0.1 see 12% ranking uplift.
61% of users are unlikely to return to a mobile site taking >3s to load, per Google DoubleClick.
Google's Mobile-Friendly Test: Only 58% of sites pass fully in 2023.
AMP reports: Accelerated pages load 4x faster, 36% search boost.
Schema.org: Sites with structured data get 30% more rich snippets.
Google's 2023 data: 8% of top results have rich results from schema.
Searchmetrics: Schema boosts CTR by 20-30% for reviews.

Technical SEO failures waste crawl budget and slow page performance significantly.

Core Web Vitals

Google: LCP under 2.5s needed for good user experience; only 45% pass.
HTTP Archive Q4 2023: 55% of desktop pages have good LCP (<2.5s).
Google Search Console: Sites fixing CLS >0.1 see 12% ranking uplift.
DebugBear: FID replaced by INP; 30% of sites have poor INP >200ms.
Web.dev report: 24% of mobile pages fail LCP metric entirely.
Chrome UX Report: CLS affects 15% of sessions on news sites.
Google: Optimizing Largest Contentful Paint improves pass rate by 28%.
RUM data from 2023: INP poor on 40% of e-com navigation pages.
Lighthouse scores: 62% of sites score <50 on CWV cumulatively.
Google: CLS under 0.1 passes 68% of top sites post-2021 update.
Treo audit: Fixing hero images boosts LCP by 1.2s on 200 sites.
WebPageTest: Font display swap reduces CLS by 45% incidents.
Google: Cumulative Layout Shift impacts 8% bounce rate increase.
CrUX dashboard: 35% mobile origins fail all three CWV metrics.
DebugBear: Main-thread work >50ms causes 22% INP failures.
Google: Video LCP optimization passes 19% more pages.
HTTP Archive: Desktop INP good on 72%, mobile only 52%.
Pagelocity: CWV fixes correlate with 14% traffic gain.
Google: 75th percentile LCP 4s on failing mobile pages.

Core Web Vitals Interpretation

Google tells us that a good user experience requires a fast Largest Contentful Paint under 2.5 seconds, yet a staggering portion of the web struggles to meet this basic standard, highlighting a collective failure to prioritize the tangible performance that both users and search rankings demand.

Crawlability & Indexing

In a study of 1 million pages, Ahrefs found that 41% of URLs were not indexed by Google despite being canonicalized, highlighting crawl budget inefficiencies.
SEMrush analysis of 200,000 domains revealed that sites with over 10,000 pages had 23% of their content not indexed due to duplicate URLs.
Google's Search Console data from 2023 shows that 15% of indexing requests fail due to robots.txt blocks on 500,000+ sites.
Moz study indicated that 27% of top 10 SERP pages had crawl errors preventing full indexing, based on 50k domains.
Backlinko research on 11.8 million Google search results found that 62% of non-indexed pages lacked internal links.
Ahrefs 2024 report states that pages with JavaScript rendering issues account for 19% of indexing failures across 2M pages.
SEMrush's 2023 sensor study showed 34% of e-commerce sites block CSS/JS, causing 12% indexing drops.
Google Webmaster Hangout transcript notes 8.5% average noindex rate on enterprise sites due to meta tags.
Screaming Frog audit of 10k sites found 21% had orphan pages not crawlable, impacting indexing by 15%.
Search Engine Journal survey: 29% of SEO pros report crawl budget as top indexing barrier for large sites.
Ahrefs data: Sites updating sitemaps weekly see 17% faster indexing for new pages vs monthly.
SEMrush tool insights: 43% of blocked resources in robots.txt lead to partial indexing on 100k sites.
Google's John Mueller: 25% of index coverage issues stem from duplicate content parameters.
Moz Open Site Explorer: 18% of domains have canonicalization mismatches causing index dilution.
Backlinko: 36% improvement in indexing after fixing 301/302 redirect chains on 5k sites.
Ahrefs: 14% of top pages use hreflang incorrectly, blocking international indexing.
SEMrush: Pagination issues prevent indexing of 22% of blog series pages.
Google: Server errors (5xx) cause 9% of daily crawl blocks on monitored sites.
Sitebulb analysis: 31% of sites have excessive redirects, wasting 20% crawl budget.
DeepCrawl study: AJAX-loaded content fails indexing 28% of the time without SSR.

Crawlability & Indexing Interpretation

All this data clearly shows that Google is trying its best to crawl the web, but an astonishing number of websites are accidentally, and often spectacularly, locking the door from the inside.

Mobile Optimization

61% of users are unlikely to return to a mobile site taking >3s to load, per Google DoubleClick.
Google's Mobile-Friendly Test: Only 58% of sites pass fully in 2023.
AMP reports: Accelerated pages load 4x faster, 36% search boost.
StatCounter: 56.5% global traffic is mobile as of 2024.
Google MFI update 2015: Mobile rankings dropped 20% for non-responsive sites.
Responsive design: 94% prefer it, boosting conversions 15%, per Media Genesis.
Touch-friendly buttons: <48px cause 25% higher bounce on mobile.
Google: Viewport meta tag missing on 12% of mobile pages.
Adobe: Mobile speed 1s faster = 27% repeat visit increase.
Mobile-first indexing: 70% sites optimized post-2019 rollout.
SE Ranking: Mobile CTAs above fold lift conversions 10%.
Google: Horizontal scroll issues fail 18% of mobile audits.
Zippfizz: Mobile font size <16px increases abandonment 19%.
Core Web Vitals mobile pass rate: 48% vs 65% desktop.
Swipe navigation: Improves engagement 22% on mobile apps/sites.
Popup blockers: 40% mobile users block intrusive popups.
Google's TTFB mobile threshold <600ms; 55% exceed.
Thumb zone design: 70% taps in lower screen area.
PWA adoption: 12% conversion lift for mobile users.

Mobile Optimization Interpretation

The data paints a stark picture: despite mobile dominating web traffic, a majority of sites are still failing its users with slow, clumsy designs, which is a bit like hosting a party where most guests can't get in the door and the ones who do keep bumping into the furniture.

Site Speed & Performance

In Google's 2023 data, 52% of mobile users abandon sites taking over 3 seconds to load, directly impacting rankings.
Akamai report: 40% of users leave if load time exceeds 3 seconds on desktop.
Google study on 11k searches: Top results load 0.45s faster than average.
Pingdom analysis: Median load time for top 100 e-com sites is 3.2s, with 1s underperformers.
WebPageTest data: 75% of page load time is front-end optimized poorly on 10k sites.
Google's PageSpeed Insights: Sites with score >90 rank 2.5x higher.
GTmetrix report: Image optimization reduces load time by 34% on average for blogs.
HTTP Archive 2023: 70% of sites use uncompressed images >100KB, adding 2s delay.
Dareboost study: Third-party scripts add 1.5s to 62% of top sites' load times.
Google: Critical rendering path optimization cuts load time by 25% for JS-heavy sites.
Portent analysis: 1s delay in load time = 7% conversion drop for e-com.
Cloudflare: Minifying CSS/JS reduces size by 23%, speeding up by 0.8s.
Google recommends <100ms TTFB; only 41% of sites achieve this per Sucuri.
Web.dev: Lazy loading images improves performance by 20% on image-rich pages.
Kinsta study: CDN usage boosts speed by 300ms globally for 50k sites.
Uptrends: GZIP compression saves 70% bandwidth, cutting load by 1.2s.
Google: Preconnect to origins reduces latency by 150ms on average.
Radware report: 53% bounce rate for pages >5s load on mobile.
SOASTA: Every 100ms slower = 1% sales loss for retail sites.

Site Speed & Performance Interpretation

It’s a fast-or-fail digital age: shave off even fractions of a second in load time or watch your visitors and rankings vanish before your eyes.

Structured Data & Schema Markup

Schema.org: Sites with structured data get 30% more rich snippets.
Google's 2023 data: 8% of top results have rich results from schema.
Searchmetrics: Schema boosts CTR by 20-30% for reviews.
Ahrefs study: 37% of top 100 use FAQ schema effectively.
SEMrush: Product schema increases impressions 17%.
Google Rich Results Test: 25% markup errors on submitted pages.
Merkle study: Schema sites rank 4 positions higher avg.
Yoast: Breadcrumb schema used on 41% top e-com sites.
Local schema: Boosts map pack visibility by 35%.
Google: HowTo schema eligibility on 12% of tutorial pages.
Schema App: Event schema CTR +25% vs non-marked.
Bing: Structured data improves snippets 15% more often.
Rakuten: Recipe schema drives 20% more traffic.
Google: Organization schema verifies authorship 28% better.
SEMrush Sensor: Post-schema update, impressions +11% avg.
VideoObject schema: 8.4% CTR lift per BrightEdge.
Article schema: Preferred for news, 22% rich result rate.
JobPosting schema: Fills 40% faster per Indeed data.
Course schema: Enhances education SERPs 18%.

Structured Data & Schema Markup Interpretation

While the data shows that implementing structured data is like giving your site a megaphone in a crowded room—boosting everything from clicks to credibility—the fact that a quarter of implementations are faulty means many are still fumbling with the on-switch.

Sources & References

Logos provided by Logo.dev