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

microsoft.com

https://www.microsoft.com/

27 100 54 92 !AXE ✗CWV

Data from Aug 28, 2026, 5:42 PM UTC old

Overall #1,483 Big Tech #9 · 1 measurement · since Aug 28, 2026

This URL redirects to https://www.microsoft.com/en-us.

Lighthouse follows the redirect, so the numbers below describe the destination page, not this one. Not yet confirmed as a move; it needs to lead to the same place on several consecutive runs first.

Core Web Vitals field data, origin-level

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

LCP 3.09 s needs-improvement
INP 1.37 s poor
CLS 0.110 needs-improvement

Scores

27
Performance
no change
100
Accessibility
no change
54
Best Practices
no change
92
SEO
no change

Filmstrip Lighthouse, mobile

How the page drew during the measured load, at 8 points across 4.70 s.

  1. 587 ms
  2. 1.17 s
  3. 1.76 s
  4. 2.35 s
  5. 2.94 s
  6. 3.52 s
  7. 4.11 s
  8. 4.70 s

Without JavaScript

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

Scripts disabled
As rendered

73.8% 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 22.10 s — — 22.10 s 22.10 s
CLS Cumulative Layout Shift 0.025 — — 0.025 0.025
TBT Total Blocking Time 2.73 s — — 2.73 s 2.73 s
FCP First Contentful Paint 5.59 s — — 5.59 s 5.59 s
Speed Index 12.00 s — — 12.00 s 12.00 s
TTFB Time to First Byte 638 ms — — 638 ms 638 ms

LCP Subparts lab observed, unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab metrics LCP metric shown above is throttled.

element render delay 2.01 s
resource load duration 217 ms
time to first byte 181 ms
resource load delay 18 ms

Field data Chrome UX Report, origin-level

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

Metric p75 Rating Distribution (good / needs work / poor)
LCP CWV 3.09 s needs-improvement 63.1% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run 1.37 s poor 55.3% good
CLS CWV 0.110 needs-improvement 74.5% good
FCP 2.50 s needs-improvement 56.8% good
TTFB 1.39 s needs-improvement 43.2% good

Lab LCP vs Field LCP

Lab 22.10 s
Field p75 3.09 s

The lab LCP is 7.16× 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 3.10 s 1.43 s 0.110 2.50 s 1.39 s
2026-08-15 3.13 s 1.50 s 0.100 2.53 s 1.40 s
2026-08-08 3.15 s 1.50 s 0.100 2.56 s 1.40 s
2026-08-01 3.16 s 1.54 s 0.110 2.59 s 1.39 s
2026-07-25 3.15 s 1.55 s 0.120 2.61 s 1.39 s
2026-07-18 3.14 s 1.56 s 0.130 2.63 s 1.40 s
2026-07-11 3.13 s 1.64 s 0.130 2.65 s 1.41 s
2026-07-04 3.13 s 1.66 s 0.130 2.66 s 1.42 s
2026-06-27 3.24 s 1.60 s 0.150 2.75 s 1.49 s
2026-06-20 3.50 s 1.50 s 0.160 2.93 s 1.64 s
2026-06-13 3.50 s 1.54 s 0.160 2.94 s 1.66 s
2026-06-06 3.51 s 1.69 s 0.160 2.96 s 1.67 s

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 7.08 MB — — 7.08 MB 7.08 MB
Requests 267 — — 267 267
Third-party Weight 548 kB — — 548 kB 548 kB
Third-party CPU 1.07 s — — 1.07 s 1.07 s
Unused JS 634 kB — — 634 kB 634 kB
Unused CSS 247 kB — — 247 kB 247 kB

By resource type

  • image 53.3% 3.67 MB · 47 req
  • script 38.9% 2.68 MB · 169 req
  • stylesheet 4.1% 280 kB · 13 req
  • font 2.6% 181 kB · 8 req
  • document 0.7% 47.6 kB · 2 req
  • other 0.4% 29.0 kB · 27 req

Third parties 12 entities

548 kB transferred, 1.07 s on the main thread.

Clicktale 219 kB · 542 ms CPU
s-microsoft.com 180 kB · 0 ms CPU
Google Tag Manager 89.7 kB · 15 ms CPU
Clarity 36.9 kB · 506 ms CPU
ContentSquare 20.0 kB · 6 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 36.23 s — — 36.23 s 36.23 s
Long Tasks 20 — — 20 20
DOM Elements 3,950 — — 3,950 3,950
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 1 — — 1 1
A11y Failures 1 — — 1 1
A11y Failing Nodes 5 — — 5 5

Main thread work

script evaluation 30.19 s
other 3.04 s
style layout 1.52 s
script parse compile 785 ms
garbage collection 298 ms
parse HTML 215 ms
paint composite render 183 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 1648 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • minor empty-heading — Headings should not be empty 1 node

Accessibility failures 1 of 38 audits

  • label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 5 nodes

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 7 console errors

Measurement log

Every stored run for this URL, newest first.

When PerfLCPCLSTBTWeight RunsSpreadBenchTook
Aug 28, 2026, 5:42 PM UTC 27 22.10 s 0.025 2.73 s 7.08 MB 3/3 ±23 2,313 -7% 93.4s

Embed this score

Use this web component to show microsoft.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.microsoft.com/"></speedlify2-score>