speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time. Follow us on Mastodon or Bluesky.

Charts Compare Measurement runs Embed a score Open to Work

amazon.com

https://www.amazon.com/

99PERF 96A11Y 100BEST 91SEO !AXE ✓CWV

Ranks Overall #852 Big Tech #1

Data from Oct 8, 2026, 10:05 AM UTC old, older than this category's 3 days freshness target Measured every 2 days · 19 runs since Aug 28, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

This data is old.

Sites are measured on a rolling schedule, so figures here are the newest successful measurement rather than a reading taken just now. Comparisons against other sites may span different points in time.

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Se Hosted by Server

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 3.00 s. Compare this filmstrip against another site.

  1. 375 ms
  2. 750 ms
  3. 1.13 s
  4. 1.50 s
  5. 1.88 s
  6. 2.25 s
  7. 2.63 s
  8. 3.00 s

Lighthouse Scores LAB Simulated

99
Performance
no change
96
Accessibility
no change
100
Best Practices
no change
91
SEO
no change

Metrics LAB FIELD

Core Web Vitals: passing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-09 → 2026-10-06), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 1.68 s good ↑ +5 ms (+0.3%) 1.67 s – 12.02 s 1.45 s good 88.5% 6.7% 4.8%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 177 ms good 78.2% 15.1% 6.7%
CLS CWV Cumulative Layout Shift 0 good → no change 0 – 0.022 0.010 good 94.2% 4% 1.9%
TBT Total Blocking Time 0 ms good → no change 0 ms – 427 ms n/a —
FCP First Contentful Paint 1.68 s good ↑ +5 ms (+0.3%) 1.67 s – 4.79 s 1.17 s good 86.5% 8.2% 5.3%
Speed Index 2.54 s good ↑ +858 ms (+51.1%) 1.67 s – 6.02 s n/a —
TTFB Time to First Byte 617 ms good ↓ -6 ms (-1%) 479 ms – 795 ms 759 ms good 76.5% 17.1% 6.4%

LCP Subparts LAB Throttled

The subparts attribute LCP to your server, resource discovery, download, or rendering. They come from one throttled load, the same one as the filmstrip, so they add up to that load’s LCP rather than the simulated Lab LCP above.

element render delay 719 ms
time to first byte 607 ms

LCP LAB Simulated vs LCP FIELD

Lab 1.68 s
Field p75 1.45 s

The lab LCP is 1.16× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 62.0 kB ↑ +17.5 kB (+40.6%) 44.1 kB – 9.93 MB
Requests 4 → no change 4 – 245
Third-party Weight 41.9 kB ↑ +129 B (+0.3%) 0 B – 9.50 MB
Third-party CPU 0 ms → no change 0 ms – 242 ms
Unused JS 0 B → no change 0 B – 309 kB
Unused CSS 22.2 kB → no change 18.1 kB – 194 kB

By resource type

Type Transfer Share Size Requests
stylesheet 52.3% 24.1 kB 1
image 38.8% 17.8 kB 1
document 8.9% 4.1 kB 1
Total 62.0 kB 4

Third parties 1 entities

Entity Transfer Size Main thread Simulated
Marketplace Web Service stylesheetimage 41.9 kB 0 ms
Total 41.9 kB 0 ms

Without JavaScript

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

Scripts disabled
As rendered

0% of pixels differ — they are identical. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Page health

Metric Value Change / range Trend
Main Thread Work 106 ms ↑ +2 ms (+1.4%) 84 ms – 4.94 s
Long Tasks 0 → no change 0 – 15
DOM Elements 32 → no change 32 – 1,266
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 5 → no change 5 – 18
A11y Failures 1 → no change 1 – 6
A11y Failing Nodes 1 → no change 1 – 10

Main thread work

Task Time Share Duration Simulated
other 66% 70 ms
style layout 17% 18 ms
script evaluation 8% 9 ms
parse HTML 6% 7 ms
paint composite render 2% 2 ms
script parse compile 0% 1 ms
Total 106 ms

Axe violations axe-core 4.13.0, full rule set

5 violating nodes across 3 rules, 41 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • moderate region — All page content should be contained by landmarks 3 nodes
    Offending elements
    1. .a-alert 
      <div class="a-box a-alert a-alert-info a-spacing-base"> <div class="a-box-inner"> <i class="a-icon a-icon-alert" alt="Alert icon"></i> <h4>Click the button below to continue shopping</h4> </div> </di…
    2. .a-spacing-small 
      <div class="a-text-center a-spacing-small a-size-mini">
    3. .a-color-base 
      <div class="a-text-center a-size-mini a-color-base"> © 1996-2025, Amazon.com, Inc. or its affiliates </div>
  • moderate landmark-one-main — Document should have one main landmark 1 node
    Offending element
    1. html 
      <html class="a-no-js" lang="en-us">
  • moderate page-has-heading-one — Page should contain a level-one heading 1 node
    Offending element
    1. html 
      <html class="a-no-js" lang="en-us">

Accessibility failures 1 of 11 audits

  • landmark-one-main — Document does not have a main landmark. 1 node

SEO failures 1 of 8 audits

  • meta-description — Document does not have a meta description

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending LCPINPCLSFCPTTFB
2026-10-03 1.46 s 177 ms 0.010 1.17 s 760 ms
2026-09-26 1.47 s 173 ms 0.010 1.18 s 764 ms
2026-09-19 1.47 s 170 ms 0.010 1.16 s 755 ms
2026-09-12 1.46 s 169 ms 0.010 1.15 s 745 ms
2026-09-05 1.45 s 169 ms 0.010 1.15 s 739 ms
2026-08-29 1.44 s 169 ms 0.010 1.14 s 731 ms
2026-08-22 1.44 s 169 ms 0.010 1.14 s 730 ms
2026-08-15 1.44 s 167 ms 0.010 1.14 s 729 ms
2026-08-08 1.43 s 163 ms 0.010 1.14 s 726 ms
2026-08-01 1.42 s 163 ms 0 1.13 s 724 ms
2026-07-25 1.40 s 161 ms 0 1.13 s 722 ms
2026-07-18 1.37 s 160 ms 0 1.11 s 723 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 8, 2026, 10:05 AM UTC 99 1.68 s 0 0 ms 62.0 kB 3/3 ±36 3,206 +29% 44.9s Wayback
Oct 6, 2026, 5:05 AM UTC 99 1.68 s 0 0 ms 44.1 kB 3/3 ±38 2,472 -1% 49.7s Wayback
Oct 1, 2026, 7:00 AM UTC 99 1.68 s 0 0 ms 58.4 kB 3/3 ±53 2,412 -3% 50.9s Wayback
Sep 29, 2026, 4:35 AM UTC 98 1.87 s 0 0 ms 83.7 kB 3/3 ±37 2,485 0% 106.8s Wayback
Sep 25, 2026, 8:18 PM UTC 64 5.46 s 0.022 325 ms 9.93 MB 3/3 ±45 2,418 -3% 55.1s Wayback
Sep 23, 2026, 11:05 AM UTC 68 5.22 s 0.003 134 ms 9.36 MB 3/3 ±8 3,354 +35% 120.1s Wayback
Sep 21, 2026, 7:54 AM UTC 66 6.08 s 0 144 ms 9.00 MB 3/3 ±32 2,484 0% 116.2s Wayback
Sep 18, 2026, 11:09 PM UTC 99 1.70 s 0 0 ms 58.6 kB 3/3 ±48 2,448 -2% 50.1s Wayback
Sep 16, 2026, 6:43 PM UTC 99 1.68 s 0 0 ms 61.9 kB 3/3 ±0 3,033 +22% 37s Wayback
Sep 14, 2026, 5:51 PM UTC 65 10.69 s 0.011 100 ms 2.52 MB 3/3 ±1 2,486 0% 121.6s Wayback
Sep 12, 2026, 7:04 AM UTC 63 11.18 s 0.011 190 ms 5.97 MB 3/3 ±4 2,340 -6% 120.3s Wayback
Sep 9, 2026, 11:01 PM UTC 63 11.79 s 0 185 ms 9.03 MB 3/3 ±47 2,311 -7% 46.4s Wayback
Sep 7, 2026, 10:35 PM UTC 68 5.54 s 0 133 ms 9.77 MB 3/3 ±39 2,437 -2% 49.3s Wayback
Sep 5, 2026, 8:06 PM UTC 63 12.02 s 0.011 117 ms 9.01 MB 3/3 ±39 2,617 +5% 45.4s Wayback
Sep 4, 2026, 6:15 PM UTC 99 1.67 s 0 0 ms 59.2 kB 3/3 ±36 2,310 -7% 36.3s Wayback
Sep 3, 2026, 6:58 AM UTC 64 6.26 s 0 145 ms 2.26 MB 3/3 ±39 2,478 0% 49.2s Wayback
Sep 2, 2026, 3:09 AM UTC 59 11.89 s 0.011 260 ms 2.55 MB 3/3 ±8 2,471 -1% 51.6s Wayback
Aug 31, 2026, 10:32 PM UTC 55 10.85 s 0.011 427 ms 5.79 MB 3/3 ±8 2,396 -4% 52.8s Wayback
Aug 28, 2026, 5:30 PM UTC 98 1.95 s 0 0 ms 84.1 kB 3/3 ±43 2,485 0% 40.4s Wayback