vercel.com

Data from Aug 21, 2026, 5:10 PM UTC — 1h old.

Web Hosts · 1 measurement · since Aug 21, 2026 · last attempt 1h

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.

Hosted by Vercel

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 2.06 s good

INP 229 ms needs-improvement

CLS 0 good

Scores

Performance

no change

Accessibility

no change

Best Practices

no change

100

SEO

no change

Lab metrics Lighthouse, mobile

Metric	Current	Previous	Change	Best	Worst
LCP Largest Contentful Paint	4.07 s	—	—	4.07 s	4.07 s
CLS Cumulative Layout Shift	0	—	—	0	0
TBT Total Blocking Time	834 ms	—	—	834 ms	834 ms
FCP First Contentful Paint	1.82 s	—	—	1.82 s	1.82 s
Speed Index	5.01 s	—	—	5.01 s	5.01 s
TTFB Time to First Byte	621 ms	—	—	621 ms	621 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 588 ms

time to first byte 4 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	2.06 s	good	81.2% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run	229 ms	needs-improvement	70.4% good
CLS CWV	0	good	97.9% good
FCP	1.86 s	needs-improvement	73.6% good
TTFB	949 ms	needs-improvement	69.3% good

Metric

p75

Rating

Distribution (good / needs work / poor)

LCP CWV

2.06 s

good

81.2% good

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

229 ms

needs-improvement

70.4% good

CLS CWV

good

97.9% good

FCP

1.86 s

needs-improvement

73.6% good

TTFB

949 ms

needs-improvement

69.3% good

Lab vs field

Lab LCP 4.07 s · field p75 2.06 s · real users are 0.51× 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	2.08 s	231 ms	1.87 s	930 ms
2026-08-08	2.07 s	229 ms	1.86 s	924 ms
2026-08-01	2.05 s	229 ms	1.85 s	910 ms
2026-07-25	2.02 s	225 ms	1.82 s	892 ms
2026-07-18	2.02 s	217 ms	1.82 s	894 ms
2026-07-11	2.08 s	203 ms	1.85 s	901 ms
2026-07-04	2.21 s	179 ms	1.90 s	909 ms
2026-06-27	2.31 s	162 ms	1.93 s	916 ms
2026-06-20	2.42 s	147 ms	1.98 s	915 ms
2026-06-13	2.49 s	140 ms	2.00 s	919 ms
2026-06-06	2.45 s	136 ms	1.97 s	906 ms
2026-05-30	2.42 s	133 ms	1.97 s	890 ms

Week ending

LCP

INP

CLS

FCP

TTFB

2026-08-15

2.08 s

231 ms

1.87 s

930 ms

2026-08-08

2.07 s

229 ms

1.86 s

924 ms

2026-08-01

2.05 s

229 ms

1.85 s

910 ms

2026-07-25

2.02 s

225 ms

1.82 s

892 ms

2026-07-18

2.02 s

217 ms

1.82 s

894 ms

2026-07-11

2.08 s

203 ms

1.85 s

901 ms

2026-07-04

2.21 s

179 ms

1.90 s

909 ms

2026-06-27

2.31 s

162 ms

1.93 s

916 ms

2026-06-20

2.42 s

147 ms

1.98 s

915 ms

2026-06-13

2.49 s

140 ms

2.00 s

919 ms

2026-06-06

2.45 s

136 ms

1.97 s

906 ms

2026-05-30

2.42 s

133 ms

1.97 s

890 ms

Page weight

Metric	Current	Previous	Change	Best	Worst
Page Weight	2.07 MB	—	—	2.07 MB	2.07 MB
Requests	124	—	—	124	124
Third-party Weight	57.4 kB	—	—	57.4 kB	57.4 kB
Third-party CPU	0 ms	—	—	0 ms	0 ms
Unused JS	360.8 kB	—	—	360.8 kB	360.8 kB
Unused CSS	20.2 kB	—	—	20.2 kB	20.2 kB

By resource type

script 1.24 MB · 74 req

other 318.6 kB · 28 req

font 227.8 kB · 7 req

stylesheet 150.8 kB · 5 req

image 72.7 kB · 8 req

document 56.6 kB · 1 req

third party 57.4 kB · 5 req

Third parties 2 entities

57.4 kB transferred, 0 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

vercel-storage.com 57.1 kB · 0 ms CPU

Sentry 269 B · 0 ms CPU

Page health

Metric	Current	Previous	Change	Best	Worst
Main Thread Work	6.67 s	—	—	6.67 s	6.67 s
Long Tasks	13	—	—	13	13
DOM Elements	972	—	—	972	972
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset	1	—	—	1	1
A11y Failures	1	—	—	1	1
A11y Failing Nodes	1	—	—	1	1

Main thread work

script evaluation 2.68 s

style layout 2.03 s

other 1.22 s

script parse compile 488 ms

parse HTML 123 ms

paint composite render 118 ms

garbage collection 14 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 1026 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.

moderate meta-viewport — Zooming and scaling must not be disabled 1 node

Accessibility failures 1 of 28 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.

meta-viewport — `[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5. 1 node

Hygiene

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

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 3 console errors

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, 5:10 PM UTC	63	4.07 s	0	834 ms	2.07 MB	3/3	±29	2,490	90.7s

When

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Aug 21, 2026, 5:10 PM UTC

4.07 s

834 ms

2.07 MB

3/3

±29

2,490

90.7s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show vercel.com'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://vercel.com/"></speedlify-score>