tsmc.com

https://www.tsmc.com/

Ranks Overall #1,450 Big Tech #7

Data from Sep 20, 2026, 5:50 AM UTC 2d old Measured every 2 days · 10 runs since Sep 2, 2026

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

This URL redirects to https://www.tsmc.com/english.

The site’s front door pointing at the page it serves there — a locale or CMS landing path, not a move. The origin is still the address of the site, so history stays under it rather than forking to a path that depends on where the measurement ran. Lighthouse follows the redirect, so the numbers below describe the page actually served; the only cost is an extra hop on each run.

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

Stack

Uses Font Awesome 5.15.4

Hosted by Cloudflare

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 13.67 s. Compare this filmstrip against another site.

1.71 s
3.42 s
5.13 s
5.92 s
8.54 s
10.25 s
11.96 s
13.67 s

Lighthouse Scores LAB Simulated

Performance

↑ +2 (+3.1%)

Accessibility

no change

100

Best Practices

no change

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 (2026-08-22 → 2026-09-18), origin-level.

Metric	Lab Simulated	Field
LCP CWV Largest Contentful Paint	5.19 s poor	↓ -44 ms (-0.8%) 3.99 s – 13.30 s	1.55 s good	89.9% 6.8% 3.3%
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—	104 ms good	94.1% 5.4% 0.5%
CLS CWV Cumulative Layout Shift	0.021 good	→ no change 0.020 – 0.029	0 good	93.9% 3.9% 2.2%
TBT Total Blocking Time	296 ms needs work	↓ -52 ms (-14.9%) 114 ms – 738 ms	n/a	—
FCP First Contentful Paint	3.62 s poor	↓ -153 ms (-4.1%) 2.44 s – 4.44 s	1.30 s good	85.5% 9.2% 5.3%
Speed Index	3.62 s needs work	↓ -153 ms (-4.1%) 3.33 s – 5.80 s	n/a	—
TTFB Time to First Byte	615 ms good	↓ -3 ms (-0.5%) 615 ms – 944 ms	609 ms good	82.8% 13.3% 3.9%

Metric

Lab Simulated

Field

Value

Change / range

Trend

p75

Distribution

LCP CWV Largest Contentful Paint

5.19 s poor

↓ -44 ms (-0.8%) 3.99 s – 13.30 s

1.55 s good

89.9% 6.8% 3.3%

INP CWV Interaction to Next Paint — field only, no lab run can measure it

n/a

—

104 ms good

94.1% 5.4% 0.5%

CLS CWV Cumulative Layout Shift

0.021 good

→ no change 0.020 – 0.029

0 good

93.9% 3.9% 2.2%

TBT Total Blocking Time

296 ms needs work

↓ -52 ms (-14.9%) 114 ms – 738 ms

n/a

—

FCP First Contentful Paint

3.62 s poor

↓ -153 ms (-4.1%) 2.44 s – 4.44 s

1.30 s good

85.5% 9.2% 5.3%

Speed Index

3.62 s needs work

↓ -153 ms (-4.1%) 3.33 s – 5.80 s

n/a

—

TTFB Time to First Byte

615 ms good

↓ -3 ms (-0.5%) 615 ms – 944 ms

609 ms good

82.8% 13.3% 3.9%

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.

resource load duration 4.82 s

time to first byte 1.15 s

element render delay 97 ms

resource load delay 68 ms

LCP LAB Simulated vs LCP FIELD

Lab 5.19 s

Field p75 1.55 s

The lab LCP is 3.36× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric	Value	Change / range
Page Weight	2.84 MB	↓ -767 B 2.84 MB – 2.85 MB
Requests	44	→ no change 44 – 44
Third-party Weight	562 kB	↓ -925 B (-0.2%) 559 kB – 563 kB
Third-party CPU	100 ms	↑ +2 ms (+2.1%) 72 ms – 114 ms
Unused JS	381 kB	↓ -383 B (-0.1%) 380 kB – 381 kB
Unused CSS	139 kB	↑ +22 B 139 kB – 139 kB

Metric

Value

Change / range

Trend

Page Weight

2.84 MB

↓ -767 B 2.84 MB – 2.85 MB

Requests

→ no change 44 – 44

Third-party Weight

562 kB

↓ -925 B (-0.2%) 559 kB – 563 kB

Third-party CPU

100 ms

↑ +2 ms (+2.1%) 72 ms – 114 ms

Unused JS

381 kB

↓ -383 B (-0.1%) 380 kB – 381 kB

Unused CSS

139 kB

↑ +22 B 139 kB – 139 kB

By resource type

Type	Share	Size	Requests
image	62.7%	1.78 MB	17
script	23.3%	662 kB	9
font	7.7%	219 kB	5
stylesheet	5.6%	160 kB	7
document	0.7%	18.6 kB	1
other	<0.1%	1.2 kB	3
Total		2.84 MB	44

Third parties 5 entities

Entity	Transfer	Size	Main thread Simulated
Google Tag Manager	script	296 kB	92 ms
Cloudflare CDN	font	185 kB	0 ms
Google Fonts	font	52.5 kB	0 ms
Google Analytics		20.9 kB	8 ms
JSDelivr CDN		8.3 kB	1 ms
Total		562 kB	100 ms

Entity

Transfer

Size

Main thread Simulated

Google Tag Manager

script

296 kB

92 ms

Cloudflare CDN

font

185 kB

0 ms

Google Fonts

font

52.5 kB

0 ms

Google Analytics

20.9 kB

8 ms

JSDelivr CDN

8.3 kB

1 ms

Total

562 kB

100 ms

Without JavaScript

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

35.7% 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.

Page health

Metric	Value	Change / range
Main Thread Work	2.77 s	↓ -184 ms (-6.2%) 2.00 s – 7.00 s
Long Tasks	10	→ no change 7 – 13
DOM Elements	1,352	→ no change 1,352 – 1,352
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	66	→ no change 66 – 66
A11y Failures	5	→ no change 5 – 5
A11y Failing Nodes	57	→ no change 56 – 58

Metric

Value

Change / range

Trend

Main Thread Work

2.77 s

↓ -184 ms (-6.2%) 2.00 s – 7.00 s

Long Tasks

→ no change 7 – 13

DOM Elements

1,352

→ no change 1,352 – 1,352

Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)

→ no change 66 – 66

A11y Failures

→ no change 5 – 5

A11y Failing Nodes

→ no change 56 – 58

Main thread work

Task	Share	Duration Simulated
script evaluation	29%	813 ms
other	29%	810 ms
style layout	16%	446 ms
paint composite render	13%	366 ms
script parse compile	7%	205 ms
parse HTML	5%	127 ms
Total		2.77 s

Task

Time

Duration Simulated

script evaluation

29%

813 ms

other

29%

810 ms

style layout

16%

446 ms

paint composite render

13%

366 ms

script parse compile

205 ms

parse HTML

127 ms

Total

2.77 s

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. 10 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

Best Practices failures 1 of 19 audits

valid-source-maps — Missing source maps for large first-party JavaScript 1 item

SEO failures 2 of 9 audits

link-text — Links do not have descriptive text 13 items
crawlable-anchors — Links are not crawlable 1 item

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	LCP	INP	FCP	TTFB
2026-09-19	1.54 s	104 ms	1.30 s	610 ms
2026-09-12	1.55 s	105 ms	1.31 s	609 ms
2026-09-05	1.55 s	105 ms	1.31 s	607 ms
2026-08-29	1.56 s	106 ms	1.31 s	606 ms
2026-08-22	1.57 s	105 ms	1.30 s	575 ms
2026-08-15	1.55 s	106 ms	1.28 s	573 ms
2026-08-08	1.51 s	105 ms	1.24 s	553 ms
2026-08-01	1.51 s	106 ms	1.24 s	554 ms
2026-07-25	1.50 s	108 ms	1.24 s	583 ms
2026-07-18	1.51 s	107 ms	1.24 s	585 ms
2026-07-11	1.56 s	109 ms	1.30 s	628 ms
2026-07-04	1.57 s	109 ms	1.30 s	627 ms

Week ending

LCP

INP

CLS

FCP

TTFB

2026-09-19

1.54 s

104 ms

1.30 s

610 ms

2026-09-12

1.55 s

105 ms

1.31 s

609 ms

2026-09-05

1.55 s

105 ms

1.31 s

607 ms

2026-08-29

1.56 s

106 ms

1.31 s

606 ms

2026-08-22

1.57 s

105 ms

1.30 s

575 ms

2026-08-15

1.55 s

106 ms

1.28 s

573 ms

2026-08-08

1.51 s

105 ms

1.24 s

553 ms

2026-08-01

1.51 s

106 ms

1.24 s

554 ms

2026-07-25

1.50 s

108 ms

1.24 s

583 ms

2026-07-18

1.51 s

107 ms

1.24 s

585 ms

2026-07-11

1.56 s

109 ms

1.30 s

628 ms

2026-07-04

1.57 s

109 ms

1.30 s

627 ms

Runs

Every stored run for this URL, newest first.

When	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took	Archive
Sep 20, 2026, 5:50 AM UTC	66	5.19 s	0.021	296 ms	2.84 MB	3/3	±5	2,472 0%	78.5s	Wayback
Sep 18, 2026, 3:21 AM UTC	64	5.23 s	0.021	348 ms	2.84 MB	3/3	±10	2,464 -1%	83.4s	Wayback
Sep 15, 2026, 11:24 PM UTC	61	8.10 s	0.021	257 ms	2.84 MB	3/3	±24	2,482 0%	82.8s	Wayback
Sep 13, 2026, 11:04 PM UTC	76	4.73 s	0.020	114 ms	2.84 MB	3/3	±15	2,987 +20%	71s	Wayback
Sep 11, 2026, 8:38 PM UTC	60	6.42 s	0.021	349 ms	2.84 MB	3/3	±10	2,275 -8%	79.9s	Wayback
Sep 9, 2026, 8:29 PM UTC	82	3.99 s	0.024	141 ms	2.84 MB	3/3	±18	3,386 +36%	34.3s	Wayback
Sep 7, 2026, 7:05 PM UTC	56	11.76 s	0.029	324 ms	2.84 MB	3/3	±5	2,473 0%	37.1s	Wayback
Sep 5, 2026, 3:08 AM UTC	64	5.65 s	0.020	290 ms	2.85 MB	3/3	±7	2,351 -5%	43.4s	Wayback
Sep 4, 2026, 12:48 AM UTC	58	13.30 s	0.029	225 ms	2.84 MB	3/3	±26	3,221 +30%	39s	Wayback
Sep 2, 2026, 10:59 PM UTC	54	6.43 s	0.020	738 ms	2.84 MB	3/3	±19	2,028 -18%	41.8s	Wayback

When

Scores

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Stack

Filmstrip LAB 🐢 Throttled

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB FIELD

LCP Subparts LAB 🐢 Throttled

LCP LAB 🤖 Simulated vs LCP FIELD

Page weight

By resource type

Third parties 5 entities

Without JavaScript

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 5 of 32 audits

Best Practices failures 1 of 19 audits

SEO failures 2 of 9 audits

Hygiene

Measurement log

Field history 25 weeks

Runs

Filmstrip LAB Throttled

Lighthouse Scores LAB Simulated

LCP Subparts LAB Throttled

LCP LAB Simulated vs LCP FIELD