The State of Web Vitals

Total page weight on Wix sites

14.8% of audited sites (831) keep total page transfer under 1.2 MB and pass LCP at 100% (0.9s median), compared with 87% (1.2s median) on the 12.3% exceeding 5 MB.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Desktop field outcomes · Wix sites only
Wix Scoped to 5,623 sites out of 203,892 analyzed (cms) Compare with all sites →

54.2% of Wix sites use 1.2 to 2.5 MB of total page weight total page weight, and 95% of those sites have a good LCP, against 92% of all Wix sites.

The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 728 with desktop field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
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LCP pass rate

Sites with 1.2 to 2.5 MB of total page weight total page weight have a good LCP most often: 95%, against 92% of all Wix sites. Sites with over 5 MB of total page weight page weight have it least often, at 87%.

SitesGood, needs improvement, poor LCPMedian
All Wix sites72892%1.2s
Under 1.2 MB total page 14.8%69100%883ms
1.2 to 2.5 MB total page 54.2%37495%1.2s
2.5 to 5 MB total page 18.7%17487%1.3s
Over 5 MB total page 12.3%11187%1.2s
GoodNeeds improvementPoorSites: with Chrome field data
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 728 with desktop field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
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Total page weight usage

1.2 to 2.5 MB of total page weight is the most used: 54.2% of Wix sites.

1.2 to 2.5 MB total page 54.2% 2.5 to 5 MB total page 18.7% Under 1.2 MB total page 14.8% Over 5 MB total page 12.3%
1.2 to 2.5 MB total page 54.2% 2.5 to 5 MB total page 18.7% Under 1.2 MB total page 14.8% Over 5 MB total page 12.3%
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 728 with desktop field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
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The four LCP phases

Across the four LCP sub-parts in Chrome's field data, the largest gap between 1.2 to 2.5 MB of total page weight and over 5 MB of total page weight sits in resource load delay: 474 ms median for 1.2 to 2.5 MB of total page weight against 509 ms for over 5 MB of total page weight. Overall median field LCP is 1.2s for 1.2 to 2.5 MB of total page weight (TTFB 342 ms, load delay 474 ms, load duration 259 ms, render delay 138 ms) versus 1.2s for over 5 MB of total page weight.

Median LCP phase breakdown (Chrome field p75) Load delay Median LCP
All Wix sites 376343 ms478 ms259 ms478 mslab 462 ms1.2s
Under 1.2 MB total page 33278 ms338 ms202 ms338 mslab 335 ms928ms
1.2 to 2.5 MB total page 185342 ms474 ms259 ms474 mslab 469 ms1.2s
2.5 to 5 MB total page 98539 ms500 ms267 ms500 mslab 494 ms1.3s
Over 5 MB total page 60308 ms509 ms247 ms509 mslab 491 ms1.2s
TTFB Resource load delay Resource load time Element render delay
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 728 with desktop field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
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Total page weight per framework

React sets the total page weight to 1.2 to 2.5 MB of total page weight on 54% of its sites, and 92% of React sites have a good LCP, against 92% of all sites.

FrameworkTotal page weight on its sitesGood LCP
All Wix sites 5,621 sites1.2 to 2.5 MB total page 54%2.5 to 5 MB total page 19%Under 1.2 MB total page 15%Over 5 MB total page 12%92%
React 5,620 sites1.2 to 2.5 MB total page 54%2.5 to 5 MB total page 19%Under 1.2 MB total page 15%Over 5 MB total page 12%92%
1.2 to 2.5 MB total page 2.5 to 5 MB total page Under 1.2 MB total page Over 5 MB total page
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 728 with desktop field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
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Total page weight or the framework

Does the framework explain the total page weight difference?

On React, 95% of sites with 1.2 to 2.5 MB of total page weight total page weight have a good LCP, against 87% of React sites with 2.5 to 5 MB of total page weight. Within React, sites with 1.2 to 2.5 MB of total page weight have a good LCP more often.

How total page weight compounds across cellular connections

Even with HTTP/2 and HTTP/3 multiplexing, transferring several megabytes of scripts, stylesheets, fonts, and images saturates mobile downlink bandwidth and delays critical rendering resources. Across 831 sites (14.8%) under 1.2 MB total transfer, 100% pass field LCP (0.9s median), falling to 87% (1.2s median) on the 12.3% (693) exceeding 5 MB.

The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 728 with desktop field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
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Understanding total page weight

Keep total initial page transfer under 2.5 MB by compressing media, lazy-loading below-the-fold assets, and pruning redundant third-party requests. Across all audited sites, 14.8% stay under 1.2 MB (100% good LCP, 0.9s median) versus 12.3% above 5 MB (87% good LCP, 1.2s median).

Go fix it Bytes by resource type → Page speed on a budget → Reduce unused JavaScript → Optimize images for Core Web Vitals →
The State of Web Vitals · October 2026 · Wix: 5,621 crawled sites · 728 with desktop field dataBy Arjen Karel · corewebvitals.io/state-of-cwv
Related signals Cookies per site → Stylesheet initiator → Script coverage (used vs unused) → font-display strategy → By Arjen Karel · 5,621 crawled Wix sites (728 with desktop Chrome field data, October 2026) · How we measured