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

tsmc.com/english

https://www.tsmc.com/english

62 84 100 83 ✗AXE ✓CWV

Data from Aug 28, 2026, 5:51 PM UTC old

Overall #1,386 Big Tech #5 · 1 measurement · since Aug 28, 2026

Stack

Cloudflare Hosted by Cloudflare

Core Web Vitals field data, url-level

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

LCP 1.95 s good
INP 116 ms good
CLS 0.010 good

Scores

62
Performance
no change
84
Accessibility
no change
100
Best Practices
no change
83
SEO
no change

Filmstrip Lighthouse, mobile

How the page drew during the measured load, at 8 points across 3.00 s.

  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

Without JavaScript

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

Scripts disabled
As rendered

35.8% of pixels differ — parts of the page change. 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 8.13 s — — 8.13 s 8.13 s
CLS Cumulative Layout Shift 0.021 — — 0.021 0.021
TBT Total Blocking Time 244 ms — — 244 ms 244 ms
FCP First Contentful Paint 3.78 s — — 3.78 s 3.78 s
Speed Index 3.78 s — — 3.78 s 3.78 s
TTFB Time to First Byte 621 ms — — 621 ms 621 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.

resource load delay 104 ms
element render delay 81 ms
resource load duration 39 ms
time to first byte 20 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 1.95 s good 83.9% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run 116 ms good 92.4% good
CLS CWV 0.010 good 98.3% good
FCP 1.64 s good 78.4% good
TTFB 845 ms needs-improvement 72.7% good

Lab LCP vs Field LCP

Lab 8.13 s
Field p75 1.95 s

The lab LCP is 4.18× 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 1.94 s 116 ms 0.010 1.64 s 829 ms
2026-08-15 1.93 s 116 ms 0.010 1.64 s 822 ms
2026-08-08 1.80 s 115 ms 0.010 1.52 s 727 ms
2026-08-01 1.77 s 113 ms 0.010 1.50 s 717 ms
2026-07-25 1.78 s 117 ms 0.010 1.52 s 727 ms
2026-07-18 1.80 s 117 ms 0.010 1.51 s 743 ms
2026-07-11 2.00 s 118 ms 0.010 1.67 s 897 ms
2026-07-04 2.05 s 119 ms 0.010 1.74 s 981 ms
2026-06-27 2.10 s 116 ms 0.010 1.79 s 1.01 s
2026-06-20 2.14 s 119 ms 0.010 1.85 s 1.03 s
2026-06-13 2.11 s 121 ms 0.010 1.80 s 1.02 s
2026-06-06 2.12 s 122 ms 0.010 1.81 s 995 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 2.84 MB — — 2.84 MB 2.84 MB
Requests 43 — — 43 43
Third-party Weight 558 kB — — 558 kB 558 kB
Third-party CPU 94 ms — — 94 ms 94 ms
Unused JS 380 kB — — 380 kB 380 kB
Unused CSS 139 kB — — 139 kB 139 kB

By resource type

  • image 62.8% 1.78 MB · 17 req
  • script 23.2% 657 kB · 9 req
  • font 7.7% 219 kB · 5 req
  • stylesheet 5.7% 161 kB · 7 req
  • document 0.7% 18.6 kB · 1 req
  • other <0.1% 712 B · 2 req

Third parties 5 entities

558 kB transferred, 94 ms on the main thread.

Google Tag Manager 291 kB · 86 ms CPU
Cloudflare CDN 185 kB · 0 ms CPU
Google Fonts 52.5 kB · 0 ms CPU
Google Analytics 20.9 kB · 6 ms CPU
JSDelivr CDN 8.3 kB · 2 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 2.70 s — — 2.70 s 2.70 s
Long Tasks 11 — — 11 11
DOM Elements 1,352 — — 1,352 1,352
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 66 — — 66 66
A11y Failures 5 — — 5 5
A11y Failing Nodes 58 — — 58 58

Main thread work

other 823 ms
script evaluation 744 ms
style layout 457 ms
paint composite render 320 ms
script parse compile 239 ms
parse HTML 106 ms
garbage collection 12 ms

Axe violations axe-core 4.13.0, full rule set

66 violating nodes across 8 rules, 1075 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 32 nodes
  • moderate region — All page content should be contained by landmarks 15 nodes
  • serious link-name — Links must have discernible text 11 nodes
  • critical select-name — Select element must have an accessible name 3 nodes
  • moderate landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 2 nodes
  • moderate heading-order — Heading levels should only increase by one 1 node
  • minor image-redundant-alt — Alternative text of images should not be repeated as text 1 node
  • moderate page-has-heading-one — Page should contain a level-one heading 1 node

Accessibility failures 5 of 32 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 32 nodes
  • link-name — Links do not have a discernible name 11 nodes
  • target-size — Touch targets do not have sufficient size or spacing. 11 nodes
  • select-name — Select elements do not have associated label elements. 3 nodes
  • heading-order — Heading elements are not in a sequentially-descending order 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, 5:51 PM UTC 62 8.13 s 0.021 244 ms 2.84 MB 3/3 ±6 2,311 -7% 36.5s

Embed this score

Use this web component to show tsmc.com/english'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.tsmc.com/english"></speedlify2-score>