chrome.dev/css-wrapped-2025

https://chrome.dev/css-wrapped-2025

Ranks Overall #1,420 Astro Showcase #142

Data from Oct 2, 2026, 6:47 AM UTC 16h old Measured once a month · 1 run since Oct 2, 2026

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

This URL redirects to https://chrome.dev/css-wrapped-2025/.

The same URL in a different form — a trailing slash — so both are treated as one site rather than two: one history, measured once. 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

Built with Astro

Uses Lit 3.1.3

Hosted by Google Frontend

Lighthouse Scores LAB Simulated

Performance

no change

Accessibility

no change

100

Best Practices

no change

100

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 (2026-09-02 → 2026-09-29), origin-level.

Metric	Lab Simulated	Field
LCP CWV Largest Contentful Paint	8.52 s poor	— 8.52 s – 8.52 s	1.27 s good	92% 5.2% 2.8%
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—	104 ms good	89.3% 8.1% 2.7%
CLS CWV Cumulative Layout Shift	0 good	— 0 – 0	0 good	98% 1.2% 0.8%
TBT Total Blocking Time	265 ms needs work	— 265 ms – 265 ms	n/a	—
FCP First Contentful Paint	1.67 s good	— 1.67 s – 1.67 s	1.11 s good	88.6% 8.2% 3.2%
Speed Index	4.13 s needs work	— 4.13 s – 4.13 s	n/a	—
TTFB Time to First Byte	770 ms good	— 770 ms – 770 ms	741 ms good	77.8% 18.2% 4.1%

Metric

Lab Simulated

Field

Value

Change / range

Trend

p75

Distribution

LCP CWV Largest Contentful Paint

8.52 s poor

— 8.52 s – 8.52 s

1.27 s good

92% 5.2% 2.8%

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

n/a

—

104 ms good

89.3% 8.1% 2.7%

CLS CWV Cumulative Layout Shift

0 good

— 0 – 0

0 good

98% 1.2% 0.8%

TBT Total Blocking Time

265 ms needs work

— 265 ms – 265 ms

n/a

—

FCP First Contentful Paint

1.67 s good

— 1.67 s – 1.67 s

1.11 s good

88.6% 8.2% 3.2%

Speed Index

4.13 s needs work

— 4.13 s – 4.13 s

n/a

—

TTFB Time to First Byte

770 ms good

— 770 ms – 770 ms

741 ms good

77.8% 18.2% 4.1%

LCP Subparts LAB Unthrottled

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

element render delay 1.96 s

resource load duration 292 ms

time to first byte 76 ms

resource load delay 13 ms

LCP LAB Simulated vs LCP FIELD

Lab 8.52 s

Field p75 1.27 s

The lab LCP is 6.71× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric	Value	Change / range
Page Weight	1.78 MB	— 1.78 MB – 1.78 MB
Requests	78	— 78 – 78
Third-party Weight	206 kB	— 206 kB – 206 kB
Third-party CPU	61 ms	— 61 ms – 61 ms
Unused JS	77.0 kB	— 77.0 kB – 77.0 kB
Unused CSS	0 B	— 0 B – 0 B

Metric

Value

Change / range

Trend

Page Weight

1.78 MB

— 1.78 MB – 1.78 MB

Requests

— 78 – 78

Third-party Weight

206 kB

— 206 kB – 206 kB

Third-party CPU

61 ms

— 61 ms – 61 ms

Unused JS

77.0 kB

— 77.0 kB – 77.0 kB

Unused CSS

0 B

— 0 B – 0 B

By resource type

Type	Share	Size	Requests
image	74%	1.32 MB	39
script	11.5%	206 kB	2
font	8.9%	158 kB	3
document	2.6%	46.6 kB	1
other	1.6%	29.3 kB	24
stylesheet	1.3%	24.1 kB	2
Total		1.78 MB	78

Third parties 2 entities

Entity	Transfer	Size	Main thread Simulated
Google Tag Manager	script	178 kB	61 ms
webstatus.dev	other	28.0 kB	0 ms
Total		206 kB	61 ms

Entity

Transfer

Size

Main thread Simulated

Google Tag Manager

script

178 kB

61 ms

webstatus.dev

other

28.0 kB

0 ms

Total

206 kB

61 ms

Page health

Metric	Value	Change / range
Main Thread Work	5.50 s	— 5.50 s – 5.50 s
Long Tasks	9	— 9 – 9
DOM Elements	7,408	— 7,408 – 7,408
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	10	— 10 – 10
A11y Failures	1	— 1 – 1
A11y Failing Nodes	1	— 1 – 1

Metric

Value

Change / range

Trend

Main Thread Work

5.50 s

— 5.50 s – 5.50 s

Long Tasks

— 9 – 9

DOM Elements

7,408

— 7,408 – 7,408

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

— 10 – 10

A11y Failures

— 1 – 1

A11y Failing Nodes

— 1 – 1

Main thread work

Task	Share	Duration Simulated
other	42%	2.32 s
style layout	33%	1.83 s
paint composite render	12%	686 ms
script evaluation	8%	422 ms
parse HTML	3%	174 ms
script parse compile	1%	49 ms
garbage collection	0%	26 ms
Total		5.50 s

Task

Time

Duration Simulated

other

42%

2.32 s

style layout

33%

1.83 s

paint composite render

12%

686 ms

script evaluation

422 ms

parse HTML

174 ms

script parse compile

49 ms

garbage collection

26 ms

Total

5.50 s

Axe violations axe-core 4.13.0, full rule set

10 violating nodes across 4 rules, 5459 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

moderate region — All page content should be contained by landmarks 7 nodes

Offending elements (5 of 7)

.hero > div[data-astro-cid-zi4ldr3x=""]:nth-child(1)

<div style="z-index: 2;" data-astro-cid-zi4ldr3x="">

.sub-title

<p class="sub-title" data-astro-cid-hxrq4k5a=""> <b data-astro-cid-hxrq4k5a="">Sculpt</b> dynamic interfaces, <code data-astro-cid-hxrq4k5a="">stretch</code> your imagination, and <b data-astro-cid-h…

p[data-astro-cid-hxrq4k5a=""]:nth-child(3)

<p data-astro-cid-hxrq4k5a="">Scroll down to explore these exciting additions to the platform.</p>

.hero-title--smaller

<p class="hero-title hero-title--smaller" data-astro-cid-zi4ldr3x=""> We've been crafting new features with <i data-astro-cid-zi4ldr3x="">you</i> in mind. </p>

.hero-title.subtitle[data-astro-cid-zi4ldr3x=""]

<p class="hero-title subtitle" data-astro-cid-zi4ldr3x="">Ready to see what we molded in 2025? The Chrome DevRel team will guide you through 22 CSS and UI features that landed on the Web Platform, fr…

serious color-contrast — Elements must meet minimum color contrast ratio thresholds 1 node
Offending element
1. #cookie-consent > p > a
```
<a href="https://policies.google.com/technologies/cookies">Learn more.</a>
```
moderate landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 1 node
Offending element
1. nav[data-astro-cid-rnzzhjcr=""]
```
<nav data-astro-cid-rnzzhjcr="">
```

moderate page-has-heading-one — Page should contain a level-one heading 1 node

Offending element

html

<html lang="en" style="view-transition-name: root;" data-astro-cid-j7pv25f6="" data-theme="light">

Accessibility failures 1 of 27 audits

color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 1 node

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
2026-09-26	1.24 s	105 ms	1.08 s	740 ms
2026-09-19	1.28 s	104 ms	1.15 s	760 ms
2026-09-12	1.22 s	108 ms	1.08 s	742 ms
2026-09-05	1.21 s	106 ms	1.07 s	721 ms
2026-08-29	1.28 s	106 ms	1.13 s	703 ms
2026-08-22	1.25 s	104 ms	1.09 s	676 ms
2026-08-15	1.32 s	109 ms	1.14 s	711 ms
2026-08-08	1.40 s	119 ms	1.18 s	749 ms
2026-08-01	1.34 s	140 ms	1.14 s	778 ms
2026-07-25	1.38 s	153 ms	1.16 s	778 ms
2026-07-18	1.15 s	136 ms	1.00 s	665 ms
2026-07-11	1.02 s	127 ms	915 ms	597 ms

Week ending

LCP

INP

CLS

FCP

TTFB

2026-09-26

1.24 s

105 ms

1.08 s

740 ms

2026-09-19

1.28 s

104 ms

1.15 s

760 ms

2026-09-12

1.22 s

108 ms

1.08 s

742 ms

2026-09-05

1.21 s

106 ms

1.07 s

721 ms

2026-08-29

1.28 s

106 ms

1.13 s

703 ms

2026-08-22

1.25 s

104 ms

1.09 s

676 ms

2026-08-15

1.32 s

109 ms

1.14 s

711 ms

2026-08-08

1.40 s

119 ms

1.18 s

749 ms

2026-08-01

1.34 s

140 ms

1.14 s

778 ms

2026-07-25

1.38 s

153 ms

1.16 s

778 ms

2026-07-18

1.15 s

136 ms

1.00 s

665 ms

2026-07-11

1.02 s

127 ms

915 ms

597 ms

Runs

Every stored run for this URL, newest first.

When	Scores	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took	Archive
Oct 2, 2026, 6:47 AM UTC		67	8.52 s	0	265 ms	1.78 MB	3/3	±0	2,457 -1%	79.6s	Wayback

When

Scores

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Stack

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB FIELD

LCP Subparts LAB 🐇 Unthrottled

LCP LAB 🤖 Simulated vs LCP FIELD

Page weight

By resource type

Third parties 2 entities

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 1 of 27 audits

Hygiene

Measurement log

Field history 25 weeks

Runs

Lighthouse Scores LAB Simulated

LCP Subparts LAB Unthrottled

LCP LAB Simulated vs LCP FIELD