speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time.

Charts Measurement runs Embed a score

amazon.com

https://www.amazon.com/

98 96 81 91 AXE CWV

Data from Aug 28, 2026, 5:30 PM UTC old

Overall #1,238 Big Tech #2 · 1 measurement · since Aug 28, 2026

Stack

Akamai Hosted by Akamai

Core Web Vitals field data, url-level

Real Chrome users, 28-day window (2026-07-30 → 2026-08-26).

LCP 1.44 s good
INP 169 ms good
CLS 0.010 good

Scores

98
Performance
no change
96
Accessibility
no change
81
Best Practices
no change
91
SEO
no change

Without JavaScript

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

Scripts disabled
As rendered

73.1% of pixels differ — the page changes substantially. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 1.95 s 1.95 s 1.95 s
CLS Cumulative Layout Shift 0 0 0
TBT Total Blocking Time 0 ms 0 ms 0 ms
FCP First Contentful Paint 1.95 s 1.95 s 1.95 s
Speed Index 1.95 s 1.95 s 1.95 s
TTFB Time to First Byte 532 ms 532 ms 532 ms

Field data Chrome UX Report, url-level

Real Chrome users, 28-day trailing window (2026-07-30 → 2026-08-26).

Metric p75 Rating Distribution (good / needs work / poor)
LCP CWV 1.44 s good 87.9% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run 169 ms good 79.5% good
CLS CWV 0.010 good 94.3% good
FCP 1.14 s good 87.8% good
TTFB 730 ms good 78.2% good

Lab LCP vs Field LCP

Lab 1.95 s
Field p75 1.44 s

The lab LCP is 1.35× the field p75 — real users likely have above-average hardware or network connectivity.

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
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
2026-07-11 1.37 s 162 ms 0 1.11 s 727 ms
2026-07-04 1.38 s 163 ms 0 1.12 s 730 ms
2026-06-27 1.38 s 168 ms 0 1.12 s 725 ms
2026-06-20 1.41 s 171 ms 0 1.13 s 715 ms
2026-06-13 1.42 s 167 ms 0 1.13 s 709 ms
2026-06-06 1.42 s 163 ms 0 1.14 s 703 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 84.1 kB 84.1 kB 84.1 kB
Requests 7 7 7
Third-party Weight 0 B 0 B 0 B
Third-party CPU 0 ms 0 ms 0 ms
Unused JS 0 B 0 B 0 B
Unused CSS 18.1 kB 18.1 kB 18.1 kB

By resource type

  • document 54% 45.0 kB · 3 req
  • stylesheet 23.7% 19.8 kB · 1 req
  • image 21.4% 17.8 kB · 1 req
  • other 0.9% 784 B · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 546 ms 546 ms 546 ms
Long Tasks 1 1 1
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 11 11 11
A11y Failures 1 1 1
A11y Failing Nodes 1 1 1

Main thread work

script evaluation 381 ms
other 109 ms
style layout 32 ms
parse HTML 19 ms
paint composite render 4 ms
script parse compile 2 ms

Axe violations axe-core 4.13.0, full rule set

11 violating nodes across 6 rules, 1536 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • minor image-redundant-alt — Alternative text of images should not be repeated as text 5 nodes
  • critical aria-allowed-attr — Elements must only use supported ARIA attributes 2 nodes
  • critical aria-roles — ARIA roles used must conform to valid values 1 node
  • moderate landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 1 node
  • minor meta-viewport-large — Users should be able to zoom and scale the text up to 500% 1 node
  • moderate page-has-heading-one — Page should contain a level-one heading 1 node

Accessibility failures 1 of 11 audits

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

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first.

When PerfLCPCLSTBTWeight RunsSpreadBenchTook
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

Embed this score

Use this web component to show amazon.com's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site!

<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://www.amazon.com/"></speedlify2-score>