---
title: "Social Embed Performance 2026: 8.6-Point LCP Cost"
description: "Good LCP falls from 69.1 to 60.5 percent on mobile with social embeds present, an 8.6-point penalty across roughly 861,000 origins."
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Data Study · Third-Party Scripts
# Social Embeds Cost 8.6 Points of Good LCP
Written by [Matt Suffoletto](/resources/author/matt-suffoletto)
Published July 15, 2026 6 min read
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On This Page
- [Methodology](#methodology-source "Methodology")
- [Key Findings](#key-findings "Key Findings")
- [Summary](#summary "Summary")
- [How It Was Built](#how-this-study-was-built "How It Was Built")
- [What Widgets Cost](#what-embedded-widgets-actually-cost "What Widgets Cost")
- [Loading Is the Hit](#loading-is-the-hit-not-responsiveness "Loading Is the Hit")
- [Third-Party Context](#where-embeds-sit-in-the-third-party-picture "Third-Party Context")
- [Keep It Without Paying](#how-to-keep-the-widget-without-paying-for-it "Keep It Without Paying")
- [Embed & cite](#embed "Embed & cite")
- [FAQ](#faq "FAQ")
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Sites running embedded third-party widgets pass Core Web Vitals on 38.7% of mobile origins versus 42.7% without, with an 8.6-point loading penalty.
Analysis of 9.58M origins · CrUX + HTTP Archive, May 2026
Part of our [Third-Party Script Performance Statistics 2026](/resources/statistics/third-party-scripts) research.
## Methodology & Source
Data source
HTTP Archive technology detection (Wappalyzer "Widgets" category) joined to Chrome UX Report (CrUX) real-user field data
Collection date
June 2026 crawl, May 2026 CrUX release
Notes
9.58 million mobile origins with a CrUX reading, split by whether an embedded third-party widget was detected, measured at the 75th percentile against Google's Core Web Vitals thresholds (strict all-three pass). The "Widgets" category spans social embeds, share buttons, feeds, and similar components.
## Key Findings
1. 1. [Sites with embedded third-party widgets pass Core Web Vitals on **38.7%** of mobile origins. Sites without them pass on **42.7%**. That is a **4-point** gap. ](#what-embedded-widgets-actually-cost) Copy stat
2. 2. [The damage is loading. **Good-LCP drops from 69.1% to 60.5%** on mobile, an **8.6-point** hit, because embeds pull in external scripts and iframes that compete with the page's own content. ](#loading-is-the-hit-not-responsiveness) Copy stat
3. 3. [The penalty holds on desktop too: **48.3% versus 56.6%** pass, and good-LCP of **73.6% versus 81.3%**. ](#which-third-party-categories-actually-hurt) Copy stat
4. 4. [Widgets sit on about **9%** of the mobile web ( **861,000 origins**), concentrated on content, news, and small-business sites. ](#what-embedded-widgets-actually-cost) Copy stat
5. 5. [Responsiveness is not the problem (good-INP is actually higher on widget sites, a site-type confound). The fix is a loading fix. ](#loading-is-the-hit-not-responsiveness) Copy stat
6. 6. [Embedded widgets and live chat hurt loading most. Advertising, analytics, and retargeting showed no clean overall effect, masked by the well-resourced sites that run them. ](#which-third-party-categories-actually-hurt) Copy stat
## Summary
Embedded social widgets sit on roughly 861,000 mobile origins, and where they appear the site is good on Largest Contentful Paint 60.5% of the time versus 69.1% without, an 8.6-point loading gap. Overall Core Web Vitals pass follows, 38.7% with a widget against 42.7% without, a 4-point shortfall that is almost entirely a loading story. A single live-updating feed can outweigh the article it sits next to.
The reason to care is that loading speed is what decides whether a visitor stays long enough to read, click, or buy. Google's field research pins most mobile abandonment on pages that take more than three seconds to appear, and slower pages convert worse at every step in the funnel. A widget added to make a page look busier can leave it slower than the content it was meant to complement.
## How this study was built
Two Google-scale datasets meet in this analysis. HTTP Archive's technology fingerprinting flags which of 9.58 million mobile origins ship an embedded third-party widget such as a live social feed, a share bar, or a reviews carousel, and the Chrome User Experience Report provides the Core Web Vitals those same origins served to real Chrome users on real devices and networks. That is field data, the same signal Google uses for search ranking, not a synthetic lab benchmark.
Google's Core Web Vitals pass bar is strict by design. An origin passes only when the 75th percentile of its mobile traffic clears all three thresholds at the same time: Largest Contentful Paint below 2.5 seconds, Interaction to Next Paint below 200 milliseconds, and Cumulative Layout Shift below 0.1. In practice, most sites reach that bar only when loading, responsiveness, and layout stability are all in good shape at once.
## What embedded widgets actually cost
Embedded widgets are the small conveniences sites add from other services: a live social-media feed, a row of share buttons, a reviews carousel, a booking or chat-style component. Each is a snippet that pulls in third-party JavaScript and, often, an iframe. We compared [Core Web Vitals](/resources/guides/complete-core-web-vitals-guide) for the roughly 861,000 mobile sites that run a detectable widget against those that do not.
Sites with embedded widgets pass Core Web Vitals on 38.7% of mobile origins; sites without them, 42.7%. That 4-point gap lands almost entirely on loading. Good [Largest Contentful Paint](/resources/guides/complete-core-web-vitals-guide#lcp) is 60.5% on widget-equipped sites versus 69.1% without, an 8.6-point difference. Responsiveness and stability barely move, and INP is actually a touch better on widget sites, because they skew toward classic, low-JavaScript pages rather than heavy single-page apps.
8.6 pts
The mobile good-LCP penalty on sites running embedded third-party widgets, behind only live chat and A/B tools. Copy stat
Core Web Vitals pass rate, with and without embedded widgets (mobile)
Without widgets
42.7%
With widgets
38.7%
Source: PageSpeed Matters analysis of 9.5 million origins with CrUX field data, mobile 75th percentile, mid-2026.
A 4-point gap in overall pass, driven almost entirely by an 8.6-point drop in good loading.
Copy chart embed Download PNG
## Loading is the hit, not responsiveness
An embedded widget typically loads its script during initial page load and renders into an iframe, fetching more resources and competing with the content the visitor came for. A social feed that pulls a dozen posts and their images before the article has finished painting pushes back the moment the largest element appears. The INP figure runs higher on widget sites, but that is a site-type effect rather than a benefit of the widget.
Good loading versus good responsiveness, with and without widgets (mobile)
Good LCP with widgets
60.5%
Good LCP without
69.1%
Good INP with widgets
91.4%
Good INP without
84.1%
Source: PageSpeed Matters, mobile 75th-percentile field data, mid-2026.
LCP takes the 8.6-point hit while INP runs higher on widget sites. The cost is a loading cost, and the higher INP is the site-type confound.
Copy chart embed Download PNG
## Where embeds sit in the third-party picture
Embedded widgets are one of several third-party categories that shape Core Web Vitals, and the 8.6-point good-LCP hit measured here puts them toward the heavier end. For the full ranking across cookie banners, tag managers, A/B testing tools, live chat, social embeds and web fonts, see our [third-party JavaScript growth study](/resources/data-studies/third-party-javascript-growth), which compares all of them side by side.
The fix follows directly from this study's own numbers. If you embed social feeds or share widgets, load them lazily. Most can be deferred until the browser is idle or until the user scrolls near them, which recovers most of the 8.6-point LCP penalty. A hard-coded set of share links costs nothing; a live-rendering social feed costs a great deal. It belongs on the same audit list as the rest of your [third-party JavaScript](/resources/data-studies/page-weight).
**Metric (mobile)**
**With widgets**
**Without**
CWV pass
38.7%
42.7%
Good LCP
60.5%
69.1%
Good INP
91.4%
84.1%
Good CLS
88.2%
88.2%
Origins
860,765
8,714,525
On desktop the penalty is larger: 48.3% versus 56.6% pass, and good-LCP 73.6% versus 81.3%.
## How to keep the widget without paying for it
The fix is narrow because the damage is narrow. The 4-point pass gap, 38.7% against 42.7%, comes almost entirely from an 8.6-point loading drop, good LCP of 60.5% on widget sites versus 69.1% without. INP and CLS do not move, so the answer is loading, not interactivity. Load embeds lazily: defer a social feed or reviews carousel until the browser is idle or the visitor scrolls near it, and most of that 8.6-point LCP penalty comes back. Where the interactivity is not essential, a hard-coded set of share links costs nothing while a live-rendering share bar costs a great deal.
The feature is often worth keeping. The way it loads, on every visit and before the content the reader came for, almost never is.
## Embed this research
Paste this on your site to embed the chart. It links back to the source automatically.
Source: Social Embeds Cost 8.6 Points of Good LCP - PageSpeed Matters
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## Cite this study
APA Copy
Matt Suffoletto. (2026). Social Embeds Cost 8.6 Points of Good LCP. PageSpeed Matters. https://www.pagespeedmatters.com/resources/data-studies/social-embeds-widgets-core-web-vitals
Plain link Copy
Social Embeds Cost 8.6 Points of Good LCP - PageSpeed Matters - https://www.pagespeedmatters.com/resources/data-studies/social-embeds-widgets-core-web-vitals
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## Frequently asked questions
### How much do social media embeds slow down your website?
Social Embeds Cost 8.6 Points of Good LCP.
### How was this measured?
HTTP Archive technology detection (Wappalyzer "Widgets" category) joined to Chrome UX Report (CrUX) real-user field data (June 2026 crawl, May 2026 CrUX release). 9.58 million mobile origins with a CrUX reading, split by whether an embedded third-party widget was detected, measured at the 75th percentile against Google's Core Web Vitals thresholds (strict all-three pass). The "Widgets" category spans social embeds, share buttons, feeds, and similar components.
## Related studies
- [Third-Party Scripts Live Chat Widgets Cost 9.5 Points of Good LCP ](/resources/data-studies/live-chat-widgets-core-web-vitals)
- [Third-Party Scripts Cookie Banners Cost 3.7 Points of LCP, Yet Those Sites Pass Core Web Vitals More Often ](/resources/data-studies/cookie-consent-banners-core-web-vitals)
- [Third-Party Scripts Google Tag Manager Costs 5.3 Points of Good LCP ](/resources/data-studies/google-tag-manager-core-web-vitals)
- [Third-Party Scripts A/B Testing Tools Cost 10.2 Points of Good LCP, the Worst of Any Third-Party Category ](/resources/data-studies/ab-testing-tools-core-web-vitals)
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