preactjs.com

Ranks Overall #627 Developer Tooling #9 Frameworks and Libraries #1

Data from Oct 7, 2026, 10:55 PM UTC 4d old, older than this category's 3 days freshness target Measured every 2 days · 19 runs since Aug 27, 2026

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

This data is 4d old.

Sites are measured on a rolling schedule, so figures here are the newest successful measurement rather than a reading taken just now. Comparisons against other sites may span different points in time.

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 Vite

Uses Preact

Hosted by Netlify

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 3.00 s. Compare this filmstrip against another site.

375 ms
750 ms
1.13 s
1.50 s
1.88 s
2.25 s
2.63 s
3.00 s

Lighthouse Scores LAB Simulated

Performance

↓ -1 (-1%)

100

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 (2026-09-08 → 2026-10-05), url-level.

Metric	Lab Simulated	Field
LCP CWV Largest Contentful Paint	1.59 s good	↓ -84 ms (-5%) 1.15 s – 1.89 s	1.32 s good	93.4% 4% 2.6%
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—	128 ms good	87.2% 11.6% 1.3%
CLS CWV Cumulative Layout Shift	0 good	→ no change 0 – 0	0 good	98% 1.3% 0.7%
TBT Total Blocking Time	21 ms good	↓ -16 ms (-43.2%) significant 2 ms – 37 ms	n/a	—
FCP First Contentful Paint	1.43 s good	↑ +356 ms (+33.2%) 1.06 s – 1.51 s	1.37 s good	84.3% 12% 3.8%
Speed Index	1.43 s good	↑ +356 ms (+33.2%) 1.06 s – 1.51 s	n/a	—
TTFB Time to First Byte	488 ms good	↓ -133 ms (-21.4%) 461 ms – 632 ms	772 ms good	76.9% 18.7% 4.5%

Metric

Lab Simulated

Field

Value

Change / range

Trend

p75

Distribution

LCP CWV Largest Contentful Paint

1.59 s good

↓ -84 ms (-5%) 1.15 s – 1.89 s

1.32 s good

93.4% 4% 2.6%

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

n/a

—

128 ms good

87.2% 11.6% 1.3%

CLS CWV Cumulative Layout Shift

0 good

→ no change 0 – 0

0 good

98% 1.3% 0.7%

TBT Total Blocking Time

21 ms good

↓ -16 ms (-43.2%) significant 2 ms – 37 ms

n/a

—

FCP First Contentful Paint

1.43 s good

↑ +356 ms (+33.2%) 1.06 s – 1.51 s

1.37 s good

84.3% 12% 3.8%

Speed Index

1.43 s good

↑ +356 ms (+33.2%) 1.06 s – 1.51 s

n/a

—

TTFB Time to First Byte

488 ms good

↓ -133 ms (-21.4%) 461 ms – 632 ms

772 ms good

76.9% 18.7% 4.5%

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.

element render delay 821 ms

time to first byte 638 ms

LCP LAB Simulated vs LCP FIELD

Lab 1.59 s

Field p75 1.32 s

The lab LCP is 1.21× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric	Value	Change / range
Page Weight	102 kB	↓ -164 B (-0.2%) 102 kB – 103 kB
Requests	17	→ no change 17 – 18
Third-party Weight	20.9 kB	→ no change 20.9 kB – 20.9 kB
Third-party CPU	11 ms	↑ +2 ms (+23.6%) significant 8 ms – 12 ms
Unused JS	0 B	→ no change 0 B – 0 B
Unused CSS	0 B	→ no change 0 B – 0 B

Metric

Value

Change / range

Trend

Page Weight

102 kB

↓ -164 B (-0.2%) 102 kB – 103 kB

Requests

→ no change 17 – 18

Third-party Weight

20.9 kB

→ no change 20.9 kB – 20.9 kB

Third-party CPU

11 ms

↑ +2 ms (+23.6%) significant 8 ms – 12 ms

Unused JS

0 B

→ no change 0 B – 0 B

Unused CSS

0 B

→ no change 0 B – 0 B

By resource type

Type	Share	Size	Requests
script	48%	47.4 kB	2
other	17.9%	17.7 kB	5
document	13.7%	13.5 kB	1
image	10.4%	10.3 kB	6
stylesheet	10.1%	9.9 kB	1
Total		102 kB	17

Third parties 1 entities

Entity	Transfer	Size	Main thread Simulated
Google Analytics	script	20.9 kB	11 ms
Total		20.9 kB	11 ms

Entity

Transfer

Size

Main thread Simulated

Google Analytics

script

20.9 kB

11 ms

Total

20.9 kB

11 ms

Without JavaScript

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

0% of pixels differ — they are identical. 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	577 ms	↑ +32 ms (+5.8%) 428 ms – 579 ms
Long Tasks	2	↓ -1 (-33.3%) significant 2 – 3
DOM Elements	862	→ no change 839 – 862
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	4	→ no change 4 – 4
A11y Failures	0	→ no change 0 – 0
A11y Failing Nodes	0	→ no change 0 – 0

Metric

Value

Change / range

Trend

Main Thread Work

577 ms

↑ +32 ms (+5.8%) 428 ms – 579 ms

Long Tasks

↓ -1 (-33.3%) significant 2 – 3

DOM Elements

862

→ no change 839 – 862

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

→ no change 4 – 4

A11y Failures

→ no change 0 – 0

A11y Failing Nodes

→ no change 0 – 0

Main thread work

Task	Share	Duration Simulated
script evaluation	35%	202 ms
other	29%	166 ms
style layout	27%	154 ms
paint composite render	4%	26 ms
parse HTML	4%	24 ms
script parse compile	1%	6 ms
Total		577 ms

Task

Time

Duration Simulated

script evaluation

35%

202 ms

other

29%

166 ms

style layout

27%

154 ms

paint composite render

26 ms

parse HTML

24 ms

script parse compile

6 ms

Total

577 ms

Axe violations axe-core 4.13.0, full rule set

4 violating nodes across 1 rule, 1129 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

serious scrollable-region-focusable — Scrollable region must have keyboard access 4 nodes
Offending elements
1. .markup > .highlight-container > pre
```
<pre class="highlight">
```
2. .home-split:nth-child(12) > div:nth-child(1) > .highlight-container > pre
```
<pre class="highlight">
```
3. .home-split:nth-child(13) > div:nth-child(1) > .highlight-container > pre
```
<pre class="highlight">
```
4. .home-split:nth-child(13) > div:nth-child(2) > .highlight-container > pre[repl="false"]
```
<pre repl="false" class="highlight">
```

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h3

Measurement log

Field history 25 weeks

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

Week ending	LCP	INP	FCP	TTFB
2026-10-03	1.37 s	138 ms	1.37 s	772 ms
2026-09-26	1.21 s	155 ms	1.19 s	620 ms
2026-09-19	1.24 s	163 ms	1.21 s	628 ms
2026-09-12	1.28 s	157 ms	1.28 s	646 ms
2026-09-05	1.33 s	147 ms	1.33 s	710 ms
2026-08-29	1.37 s	137 ms	1.37 s	776 ms
2026-08-22	1.33 s	145 ms	1.33 s	710 ms
2026-08-15	1.32 s	146 ms	1.32 s	710 ms
2026-08-08	1.32 s	146 ms	1.32 s	746 ms
2026-08-01	1.31 s	163 ms	1.29 s	711 ms
2026-07-25	1.26 s	139 ms	1.29 s	708 ms
2026-07-18	1.31 s	139 ms	1.32 s	715 ms

Week ending

LCP

INP

CLS

FCP

TTFB

2026-10-03

1.37 s

138 ms

1.37 s

772 ms

2026-09-26

1.21 s

155 ms

1.19 s

620 ms

2026-09-19

1.24 s

163 ms

1.21 s

628 ms

2026-09-12

1.28 s

157 ms

1.28 s

646 ms

2026-09-05

1.33 s

147 ms

1.33 s

710 ms

2026-08-29

1.37 s

137 ms

1.37 s

776 ms

2026-08-22

1.33 s

145 ms

1.33 s

710 ms

2026-08-15

1.32 s

146 ms

1.32 s

710 ms

2026-08-08

1.32 s

146 ms

1.32 s

746 ms

2026-08-01

1.31 s

163 ms

1.29 s

711 ms

2026-07-25

1.26 s

139 ms

1.29 s

708 ms

2026-07-18

1.31 s

139 ms

1.32 s

715 ms

Runs

Every stored run for this URL, newest first.

When	Perf	LCP	TBT	Weight	Runs	Spread	Bench	Took	Archive
Oct 7, 2026, 10:55 PM UTC	99	1.59 s	21 ms	102 kB	3/3	±0	2,418 -3%	44.4s	Wayback
Oct 5, 2026, 6:10 PM UTC	100	1.68 s	37 ms	102 kB	3/3	±2	2,506 +1%	44.4s	Wayback
Oct 1, 2026, 6:54 AM UTC	100	1.67 s	15 ms	102 kB	3/3	±0	2,300 -8%	41.8s	Wayback
Sep 29, 2026, 4:29 AM UTC	99	1.83 s	9 ms	102 kB	3/3	±5	2,476 0%	45.4s	Wayback
Sep 25, 2026, 4:57 PM UTC	100	1.67 s	19 ms	103 kB	3/3	±0	2,299 -8%	42.5s	Wayback
Sep 23, 2026, 11:00 AM UTC	99	1.55 s	3 ms	103 kB	3/3	±2	3,449 +39%	42.2s	Wayback
Sep 21, 2026, 7:49 AM UTC	100	1.21 s	4 ms	103 kB	3/3	±0	2,498 0%	42.5s	Wayback
Sep 18, 2026, 5:43 PM UTC	100	1.15 s	4 ms	103 kB	3/3	±1	2,895 +16%	41.5s	Wayback
Sep 16, 2026, 2:38 PM UTC	99	1.58 s	20 ms	103 kB	3/3	±25	2,485 0%	45.8s	Wayback
Sep 14, 2026, 12:02 PM UTC	99	1.75 s	5 ms	103 kB	3/3	±0	2,393 -4%	42.8s	Wayback
Sep 12, 2026, 6:59 AM UTC	100	1.15 s	5 ms	102 kB	3/3	±1	2,371 -5%	43.2s	Wayback
Sep 9, 2026, 10:58 PM UTC	99	1.55 s	12 ms	102 kB	3/3	±1	2,254 -9%	23.8s	Wayback
Sep 7, 2026, 10:32 PM UTC	100	1.16 s	5 ms	102 kB	3/3	±6	2,503 +1%	24.5s	Wayback
Sep 5, 2026, 8:04 PM UTC	99	1.74 s	13 ms	103 kB	3/3	±2	2,566 +3%	27.1s	Wayback
Sep 4, 2026, 6:12 PM UTC	100	1.67 s	26 ms	102 kB	3/3	±2	2,342 -6%	24.1s	Wayback
Sep 3, 2026, 6:56 AM UTC	99	1.89 s	11 ms	103 kB	3/3	±1	2,451 -1%	23.7s	Wayback
Sep 2, 2026, 3:06 AM UTC	99	1.67 s	9 ms	103 kB	3/3	±2	2,492 0%	23.6s	Wayback
Aug 31, 2026, 10:20 PM UTC	99	1.69 s	7 ms	103 kB	3/3	±0	2,458 -1%	24.1s	Wayback
Aug 27, 2026, 6:59 PM UTC	100	1.70 s	2 ms	102 kB	3/3	±6	3,066 +23%	22.5s	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 1 entities

Without JavaScript

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

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