Site speed audit for www.amazon.co.uk based on real-user data from Chrome UX Report.
www.amazon.co.uk
Detailed
Monthly origin history via CrUX BigQuery. Includes country-level data, years of history, and extended metrics. Updates: 2nd Tuesday of the month.
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Latest
Weekly origin trends via CrUX API. Shows 40 weeks of 28-day rolling data. Updates: Every Monday.
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Pages
Page-level data via CrUX API. Shows 40 weeks of 28-day rolling average for top URLs. Updates: Every Monday.
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All
100%
Mobile
56%
Desktop
39%
Metrics
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TTFB
Time to First Byte
Time to First Byte (TTFB)Experimental is the time it takes to receive the first byte from the server. A fast TTFB indicates that the server responses quickly.Learn more at web.dev/ttfb/→
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0.5
Good < 0.8
81.5%
Impr.
13.1%
Poor > 1.8
5.4%
FCP
First Contentful Paint
First Contentful Paint (FCP) marks the time when the user can see anything on the screen. A fast FCP helps reassure the user that something is happening.Learn more at web.dev/fcp/→
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0.9s
Good < 1.8
90.6%
Impr.
5.7%
Poor > 3.0
3.7%
LCP
Largest Contentful Paint
Largest Contentful Paint (LCP)Core Web Vital marks the time when the page's main content has likely loaded. A fast LCP helps reassure the user that the page is useful.Learn more at web.dev/lcp/→
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1.7s
Good < 2.5
87.7%
Impr.
8.1%
Poor > 4.0
4.2%
INP
Interaction to Next Paint
Interaction to Next Paint (INP)Core Web Vital measures interaction latency. It observes the latency of all interactions a user has made with the page, and reports a single value which all (or nearly all) interactions were below. A low INP means the page was consistently able to respond quickly to user interactions.Learn more at web.dev/inp/→
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150ms
Good < 200
81.7%
Impr.
12.9%
Poor > 500
5.4%
CLS
Cumulative Layout Shift
Cumulative Layout Shift (CLS)Core Web Vital quantifies how often users experience unexpected layout shifts. A fast CLS indicates that the page is delightful.Learn more at web.dev/cls/→
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0.10
Good < 0.10
74.9%
Impr.
13.1%
Poor > 0.25
12.0%
Audience
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Form Factors
Form Factors shows the percentage of mobile and desktop visitors.
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Mobile
55.8%
Desktop
39.3%
Tablet
4.9%
Round-Trip Time
Round-Trip Time (RTT) measures network latency. It shows the time it takes for the HTTP request to go to the server and back (round trip). It is estimated on the initial page load navigation.
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50ms
Low < 75
78.6%
Medium
18.3%
High > 275
3.1%
Navigation Types
Navigation Types:
Navigate is a regular page load, which does not fit into the other categories.
Cache occurs when a page loads from the HTTP cache.
Back-forward is a history navigation using back and forward buttons. The value shows the percentage of bfcache misses.
Bfcache is a near-instant loads without blockers.
Prerender occurs when a page is prerendered, resulting in near-instant page loads.
Reload occurs by hitting the reload button, entering the address bar, or by undoing a tab close. Frequent reloads suggest user frustration.
Restore results from browser restarts or tab removals due to memory constraints.
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Navigate
77.2%
Cache
0.0%
Back-Forward
6.5%
Bfcache
11.4%
Reload
2.9%
Restore
0.3%
Prerender
1.8%
Popularity Rank
Popularity Rank
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Top 1,000
Geography
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