vuejs.org

Ranks Overall #1,612 Developer Tooling #63 Frameworks and Libraries #12

Data from Oct 9, 2026, 10:10 AM UTC 3d old, older than this category's 3 days freshness target Measured every 2 days · 20 runs since Aug 27, 2026

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

This data is 3d 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 VitePress 2.0.0

Uses Vue 3.5.42

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

no change

Accessibility

no change

100

Best Practices

no change

100

SEO

no change

Metrics LAB FIELD

Core Web Vitals: failing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-10 → 2026-10-07), url-level.

Metric	Lab Simulated	Field
LCP CWV Largest Contentful Paint	2.74 s needs work	↓ -37 ms (-1.3%) 2.41 s – 5.18 s	1.77 s good	86.5% 8% 5.5%
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—	190 ms good	77.6% 18.9% 3.6%
CLS CWV Cumulative Layout Shift	0.175 needs work	→ no change 0 – 0.176	0.120 needs work	37.6% 60% 2.4%
TBT Total Blocking Time	52 ms good	↑ +1 ms (+2%) 11 ms – 89 ms	n/a	—
FCP First Contentful Paint	1.86 s needs work	↓ -35 ms (-1.8%) 1.83 s – 3.61 s	1.76 s good	76% 14.3% 9.7%
Speed Index	1.86 s good	↓ -35 ms (-1.8%) 1.83 s – 3.61 s	n/a	—
TTFB Time to First Byte	641 ms good	↓ -37 ms (-5.5%) significant 603 ms – 754 ms	677 ms good	80.2% 13.4% 6.4%

Metric

Lab Simulated

Field

Value

Change / range

Trend

p75

Distribution

LCP CWV Largest Contentful Paint

2.74 s needs work

↓ -37 ms (-1.3%) 2.41 s – 5.18 s

1.77 s good

86.5% 8% 5.5%

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

n/a

—

190 ms good

77.6% 18.9% 3.6%

CLS CWV Cumulative Layout Shift

0.175 needs work

→ no change 0 – 0.176

0.120 needs work

37.6% 60% 2.4%

TBT Total Blocking Time

52 ms good

↑ +1 ms (+2%) 11 ms – 89 ms

n/a

—

FCP First Contentful Paint

1.86 s needs work

↓ -35 ms (-1.8%) 1.83 s – 3.61 s

1.76 s good

76% 14.3% 9.7%

Speed Index

1.86 s good

↓ -35 ms (-1.8%) 1.83 s – 3.61 s

n/a

—

TTFB Time to First Byte

641 ms good

↓ -37 ms (-5.5%) significant 603 ms – 754 ms

677 ms good

80.2% 13.4% 6.4%

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 2.08 s

time to first byte 577 ms

LCP LAB Simulated vs LCP FIELD

Lab 2.74 s

Field p75 1.77 s

The lab LCP is 1.54× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric	Value	Change / range
Page Weight	220 kB	↓ -73 B 218 kB – 310 kB
Requests	25	→ no change 25 – 32
Third-party Weight	11.6 kB	↑ +336 B (+3%) 10.5 kB – 12.7 kB
Third-party CPU	8 ms	↑ +0 ms (+1.3%) 5 ms – 10 ms
Unused JS	0 B	→ no change 0 B – 0 B
Unused CSS	34.7 kB	↓ -219 B (-0.6%) 34.7 kB – 35.0 kB

Metric

Value

Change / range

Trend

Page Weight

220 kB

↓ -73 B 218 kB – 310 kB

Requests

→ no change 25 – 32

Third-party Weight

11.6 kB

↑ +336 B (+3%) 10.5 kB – 12.7 kB

Third-party CPU

8 ms

↑ +0 ms (+1.3%) 5 ms – 10 ms

Unused JS

0 B

→ no change 0 B – 0 B

Unused CSS

34.7 kB

↓ -219 B (-0.6%) 34.7 kB – 35.0 kB

By resource type

Type	Share	Size	Requests
script	35.1%	77.2 kB	13
font	32.7%	71.8 kB	1
stylesheet	17.8%	39.2 kB	3
other	8.5%	18.7 kB	6
document	5.6%	12.3 kB	1
image	0.2%	434 B	1
Total		220 kB	25

Third parties 3 entities

Entity	Transfer	Size	Main thread Simulated
bitterbrains.com	script	7.6 kB	7 ms
Fathom Analytics	script	3.2 kB	1 ms
Google Fonts		822 B	0 ms
Total		11.6 kB	8 ms

Entity

Transfer

Size

Main thread Simulated

bitterbrains.com

script

7.6 kB

7 ms

Fathom Analytics

script

3.2 kB

1 ms

Google Fonts

822 B

0 ms

Total

11.6 kB

8 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	565 ms	↓ -15 ms (-2.6%) 324 ms – 716 ms
Long Tasks	2	→ no change 1 – 4
DOM Elements	565	→ no change 564 – 565
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	13	→ no change 13 – 21
A11y Failures	3	→ no change 3 – 4
A11y Failing Nodes	12	→ no change 12 – 13

Metric

Value

Change / range

Trend

Main Thread Work

565 ms

↓ -15 ms (-2.6%) 324 ms – 716 ms

Long Tasks

→ no change 1 – 4

DOM Elements

565

→ no change 564 – 565

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

→ no change 13 – 21

A11y Failures

→ no change 3 – 4

A11y Failing Nodes

→ no change 12 – 13

Main thread work

Task	Share	Duration Simulated
script evaluation	38%	214 ms
other	32%	180 ms
style layout	21%	117 ms
parse HTML	5%	28 ms
paint composite render	3%	18 ms
script parse compile	2%	9 ms
Total		565 ms

Task

Time

Duration Simulated

script evaluation

38%

214 ms

other

32%

180 ms

style layout

21%

117 ms

parse HTML

28 ms

paint composite render

18 ms

script parse compile

9 ms

Total

565 ms

Axe violations axe-core 4.13.0, full rule set

13 violating nodes across 4 rules, 473 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 10 nodes

Offending elements (5 of 10)

.description

<p class="description" data-v-7d4b747f=""> An approachable, performant and versatile framework for building web user interfaces. </p>

#vuemastery-action

<a id="vuemastery-action" class="why-vue" href="javascript:;" data-v-bf2d099b="">

a[href$="sponsor/#tier-benefits"]

<a href="/sponsor/#tier-benefits" data-v-7d4b747f=""> Special Sponsor slot is now vacant - Inquire now </a>

.vt-box[data-v-7d4b747f=""]:nth-child(1) > p

<p data-v-7d4b747f=""> A rich, incrementally adoptable ecosystem that scales between a library and a full-featured framework. </p>

.vt-box[data-v-7d4b747f=""]:nth-child(2) > p

<p data-v-7d4b747f=""> Builds on top of standard HTML, CSS and JavaScript with intuitive API and world-class documentation. </p>

moderate heading-order — Heading levels should only increase by one 1 node
Offending element
1. .sitemap-col:nth-child(1) > h4
```
<h4>Docs</h4>
```

serious link-in-text-block — Links must be distinguishable without relying on color 1 node

Offending element

a[data-v-2feeab56=""][rel="noopener noreferrer"][target="_blank"]

<a class="vt-link link link" href="https://opensource.org/licenses/MIT" target="_blank" rel="noopener noreferrer" data-v-2feeab56=""><!--[-->MIT License<!--]--><!----><!----></a>

moderate region — All page content should be contained by landmarks 1 node
Offending element
1. .VPFooter
```
<div class="VPFooter" data-v-2feeab56="">
```

Accessibility failures 3 of 26 audits

color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 10 nodes
heading-order — Heading elements are not in a sequentially-descending order 1 node
link-in-text-block — Links rely on color to be distinguishable. 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	CLS	FCP	TTFB
2026-10-03	1.80 s	186 ms	0.130	1.78 s	682 ms
2026-09-26	1.83 s	187 ms	0.140	1.80 s	690 ms
2026-09-19	1.87 s	180 ms	0.170	1.84 s	710 ms
2026-09-12	1.84 s	181 ms	0.180	1.82 s	686 ms
2026-09-05	1.87 s	188 ms	0.180	1.84 s	697 ms
2026-08-29	1.79 s	186 ms	0.180	1.75 s	650 ms
2026-08-22	1.78 s	186 ms	0.180	1.74 s	655 ms
2026-08-15	1.79 s	184 ms	0.180	1.74 s	661 ms
2026-08-08	1.79 s	181 ms	0.180	1.76 s	672 ms
2026-08-01	1.87 s	184 ms	0.130	1.85 s	716 ms
2026-07-25	1.89 s	186 ms	0.100	1.89 s	726 ms
2026-07-18	1.90 s	184 ms	0.100	1.88 s	712 ms

Week ending

LCP

INP

CLS

FCP

TTFB

2026-10-03

1.80 s

186 ms

0.130

1.78 s

682 ms

2026-09-26

1.83 s

187 ms

0.140

1.80 s

690 ms

2026-09-19

1.87 s

180 ms

0.170

1.84 s

710 ms

2026-09-12

1.84 s

181 ms

0.180

1.82 s

686 ms

2026-09-05

1.87 s

188 ms

0.180

1.84 s

697 ms

2026-08-29

1.79 s

186 ms

0.180

1.75 s

650 ms

2026-08-22

1.78 s

186 ms

0.180

1.74 s

655 ms

2026-08-15

1.79 s

184 ms

0.180

1.74 s

661 ms

2026-08-08

1.79 s

181 ms

0.180

1.76 s

672 ms

2026-08-01

1.87 s

184 ms

0.130

1.85 s

716 ms

2026-07-25

1.89 s

186 ms

0.100

1.89 s

726 ms

2026-07-18

1.90 s

184 ms

0.100

1.88 s

712 ms

Runs

Every stored run for this URL, newest first.

When	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took	Archive
Oct 9, 2026, 10:10 AM UTC	87	2.74 s	0.175	52 ms	220 kB	3/3	±2	2,376 -4%	43.2s	Wayback
Oct 7, 2026, 2:09 AM UTC	87	2.78 s	0.175	51 ms	220 kB	3/3	±1	2,450 -1%	44.4s	Wayback
Oct 3, 2026, 11:39 PM UTC	71	5.18 s	0.087	66 ms	310 kB	3/3	±13	3,109 +25%	79.4s	Wayback
Oct 1, 2026, 2:19 PM UTC	87	2.75 s	0.175	20 ms	310 kB	3/3	±1	2,989 +20%	51.3s	Wayback
Sep 29, 2026, 11:26 AM UTC	88	2.59 s	0.175	19 ms	309 kB	3/3	±1	2,756 +11%	46.4s	Wayback
Sep 25, 2026, 4:44 PM UTC	88	2.58 s	0.175	22 ms	310 kB	3/3	±12	2,904 +17%	47.4s	Wayback
Sep 23, 2026, 11:01 AM UTC	89	2.41 s	0.175	51 ms	310 kB	3/3	±0	2,421 -3%	47s	Wayback
Sep 21, 2026, 7:50 AM UTC	87	2.73 s	0.176	46 ms	309 kB	3/3	±3	2,468 -1%	47.9s	Wayback
Sep 18, 2026, 1:47 PM UTC	89	2.42 s	0.176	52 ms	309 kB	3/3	±3	2,467 -1%	58.1s	Wayback
Sep 16, 2026, 9:19 AM UTC	87	2.72 s	0.175	11 ms	219 kB	3/3	±0	4,215 +69%	41.6s	Wayback
Sep 14, 2026, 6:05 AM UTC	87	2.74 s	0.175	42 ms	219 kB	3/3	±0	2,452 -1%	45.5s	Wayback
Sep 11, 2026, 11:22 PM UTC	89	2.43 s	0.175	57 ms	219 kB	3/3	±1	2,487 0%	74.7s	Wayback
Sep 9, 2026, 10:58 PM UTC	88	3.67 s	0	89 ms	220 kB	3/3	±1	2,192 -12%	55.4s	Wayback
Sep 7, 2026, 10:32 PM UTC	87	2.74 s	0.175	26 ms	219 kB	3/3	±0	3,014 +21%	53.1s	Wayback
Sep 5, 2026, 3:55 PM UTC	88	2.59 s	0.175	20 ms	218 kB	3/3	±2	3,286 +32%	23.7s	Wayback
Sep 4, 2026, 10:55 AM UTC	86	3.93 s	0	74 ms	219 kB	3/3	±1	2,566 +3%	27.1s	Wayback
Sep 3, 2026, 1:14 AM UTC	89	2.41 s	0.175	53 ms	219 kB	3/3	±1	2,485 0%	24.2s	Wayback
Sep 1, 2026, 11:26 PM UTC	87	2.67 s	0.175	20 ms	310 kB	3/3	±14	3,340 +34%	27.1s	Wayback
Aug 31, 2026, 10:31 PM UTC	88	2.42 s	0.176	44 ms	310 kB	3/3	±2	2,013 -19%	55.8s	Wayback
Aug 27, 2026, 6:59 PM UTC	87	2.75 s	0.176	33 ms	308 kB	3/3	±15	2,311 -7%	27.6s	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 3 entities

Without JavaScript

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 3 of 26 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