qwik.dev

Data from Aug 21, 2026, 5:31 AM UTC — 13h old.

Site Generators · 1 measurement · since Aug 21, 2026 · last attempt 13h

Stack

Detected on the same page load as the accessibility pass — the generator from <meta name="generator"> or the shape of the page, the host from response headers.

Built with Qwik

Hosted by Cloudflare

Core Web Vitals field data, url-level

Real Chrome users, 28-day window (2026-07-23 → 2026-08-19). This is what Google measures you on.

LCP 1.71 s good

INP 49 ms good

CLS 0 good

Scores

Performance

no change

Accessibility

no change

Best Practices

no change

SEO

no change

Lab metrics Lighthouse, mobile

Metric	Current	Previous	Change	Best	Worst
LCP Largest Contentful Paint	1.87 s	—	—	1.87 s	1.87 s
CLS Cumulative Layout Shift	0	—	—	0	0
TBT Total Blocking Time	113 ms	—	—	113 ms	113 ms
FCP First Contentful Paint	1.87 s	—	—	1.87 s	1.87 s
Speed Index	1.87 s	—	—	1.87 s	1.87 s
TTFB Time to First Byte	604 ms	—	—	604 ms	604 ms

What LCP is made of

A flat LCP number tells you something regressed. The subparts tell you whether it was the server, resource discovery, the download, or rendering.

element render delay 93 ms

time to first byte 35 ms

Field data Chrome UX Report, url-level

Real Chrome users, 28-day trailing window (2026-07-23 → 2026-08-19). This is what Google measures you on.

Metric	p75	Rating	Distribution (good / needs work / poor)
LCP CWV	1.71 s	good	92.3% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run	49 ms	good	99.2% good
CLS CWV	0	good	95.7% good
FCP	1.63 s	good	80.2% good
TTFB	1.14 s	needs-improvement	55.7% good

Metric

p75

Rating

Distribution (good / needs work / poor)

LCP CWV

1.71 s

good

92.3% good

INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run

49 ms

good

99.2% good

CLS CWV

good

95.7% good

FCP

1.63 s

good

80.2% good

TTFB

1.14 s

needs-improvement

55.7% good

Lab vs field

Lab LCP 1.87 s · field p75 1.71 s · real users are 0.92× faster than the lab.

Field history 25 weeks

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

Week ending	LCP	INP	FCP	TTFB
2026-08-15	1.84 s	49 ms	1.68 s	1.16 s
2026-08-08	1.82 s	58 ms	1.66 s	1.15 s
2026-08-01	1.75 s	61 ms	1.66 s	1.19 s
2026-07-25	1.54 s	62 ms	1.55 s	1.16 s
2026-07-18	1.65 s	57 ms	1.58 s	1.21 s
2026-07-11	1.54 s	51 ms	1.56 s	1.11 s
2026-07-04	1.47 s	57 ms	1.52 s	1.08 s
2026-06-27	1.59 s	59 ms	1.58 s	1.07 s
2026-06-20	1.47 s	61 ms	1.46 s	1.07 s
2026-06-13	1.52 s	61 ms	1.53 s	1.09 s
2026-06-06	1.45 s	61 ms	1.45 s	1.06 s
2026-05-30	1.44 s	62 ms	1.44 s	1.09 s

Week ending

LCP

INP

CLS

FCP

TTFB

2026-08-15

1.84 s

49 ms

1.68 s

1.16 s

2026-08-08

1.82 s

58 ms

1.66 s

1.15 s

2026-08-01

1.75 s

61 ms

1.66 s

1.19 s

2026-07-25

1.54 s

62 ms

1.55 s

1.16 s

2026-07-18

1.65 s

57 ms

1.58 s

1.21 s

2026-07-11

1.54 s

51 ms

1.56 s

1.11 s

2026-07-04

1.47 s

57 ms

1.52 s

1.08 s

2026-06-27

1.59 s

59 ms

1.58 s

1.07 s

2026-06-20

1.47 s

61 ms

1.46 s

1.07 s

2026-06-13

1.52 s

61 ms

1.53 s

1.09 s

2026-06-06

1.45 s

61 ms

1.45 s

1.06 s

2026-05-30

1.44 s

62 ms

1.44 s

1.09 s

Page weight

Metric	Current	Previous	Change	Best	Worst
Page Weight	2.34 MB	—	—	2.34 MB	2.34 MB
Requests	463	—	—	463	463
Third-party Weight	11.5 kB	—	—	11.5 kB	11.5 kB
Third-party CPU	4 ms	—	—	4 ms	4 ms
Unused JS	65.3 kB	—	—	65.3 kB	65.3 kB
Unused CSS	0 B	—	—	0 B	0 B

By resource type

image 1.07 MB · 11 req

script 821.0 kB · 205 req

other 375.3 kB · 241 req

document 45.3 kB · 2 req

font 25.2 kB · 3 req

third party 359.2 kB · 7 req

Third parties 1 entities

11.5 kB transferred, 4 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Cloudflare 11.5 kB · 4 ms CPU

Page health

Metric	Current	Previous	Change	Best	Worst
Main Thread Work	2.64 s	—	—	2.64 s	2.64 s
Long Tasks	5	—	—	5	5
DOM Elements	740	—	—	740	740
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset	6	—	—	6	6
A11y Failures	1	—	—	1	1
A11y Failing Nodes	3	—	—	3	3

Main thread work

other 1.51 s

script evaluation 812 ms

style layout 99 ms

paint composite render 88 ms

script parse compile 77 ms

parse HTML 47 ms

Axe violations axe-core 4.13.0, full rule set

6 violating nodes across 2 rules, 1100 passing. This is a standalone axe run, stricter than the subset Lighthouse folds into its score above — and it is the second tiebreaker in the ranking.

serious color-contrast — Elements must meet minimum color contrast ratio thresholds 5 nodes
moderate page-has-heading-one — Page should contain a level-one heading 1 node

Accessibility failures 1 of 25 audits

Tracked as a count, not just the score — the weighted score is coarse enough that you can ship a broken component and barely move it.

color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 3 nodes

Hygiene

Changes rarely — which is exactly why a change is worth noticing.

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first. Failures are kept as records — "this site was down on Tuesday" is data too.

When	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took
Aug 21, 2026, 5:31 AM UTC	97	1.87 s	0	113 ms	2.34 MB	3/3	±2	2,376	39.7s

When

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Aug 21, 2026, 5:31 AM UTC

1.87 s

113 ms

2.34 MB

3/3

±2

2,376

39.7s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show qwik.dev's scores, updated whenever this instance re-measures — more about the component. Don’t forget to bundle the speedlify-score.js component code into your site!

<speedlify-score speedlify-url="https://zachleat.github.io/speedlify2/" url="https://qwik.dev/"></speedlify-score>