Run Time Stats

Client Side Rendered Tests

Methodology: Client Side Rendered Tests.

Some frameworks have been moved off their golden path to make client side tests fair when comparing. See the methodology link above for the full details.

Framework	First Paint	FCP	INP
Astro	121.2ms	121.19ms	3.17ms
Next.js	356ms	356.16ms	18.88ms
Nuxt	169.4ms	169.33ms	14.57ms
React Router	200ms	200.05ms	19.07ms
SolidStart	252.6ms	252.43ms	19.32ms
SvelteKit	195.2ms	195.18ms	15.42ms
TanStack Start	181.8ms	181.6ms	28.34ms

First Paint (ms)

First Paint (ms) data
Framework	Milliseconds
Astro	121.20 ms
Nuxt	169.40 ms
TanStack Start	181.80 ms
SvelteKit	195.20 ms
React Router	200.00 ms
SolidStart	252.60 ms
Next.js	356.00 ms

The chart includes a dotted median reference line calculated from the visible framework values.

First Contentful Paint (ms)

First Contentful Paint (ms) data
Framework	Milliseconds
Astro	121.19 ms
Nuxt	169.33 ms
TanStack Start	181.60 ms
SvelteKit	195.18 ms
React Router	200.05 ms
SolidStart	252.43 ms
Next.js	356.16 ms

The chart includes a dotted median reference line calculated from the visible framework values.

Interaction to Next Paint (ms)

Interaction to Next Paint (ms) data
Framework	Milliseconds
Astro	3.17 ms
Nuxt	14.57 ms
SvelteKit	15.42 ms
Next.js	18.88 ms
React Router	19.07 ms
SolidStart	19.32 ms
TanStack Start	28.34 ms

The chart includes a dotted median reference line calculated from the visible framework values.

Server Side Rendered Tests

Methodology: Server Side Rendered Tests.

Framework	First Paint	FCP	INP
Astro	89.4ms	89.07ms	1.26ms
Next.js	179.2ms	178.88ms	19.58ms
Nuxt	107.2ms	107.39ms	12.19ms
React Router	141.8ms	142.14ms	17ms
SolidStart	110.6ms	110.61ms	16.84ms
SvelteKit	118ms	118.14ms	15.46ms
TanStack Start	165ms	165.04ms	28.62ms

First Paint (ms)

First Paint (ms) data
Framework	Milliseconds
Astro	89.40 ms
Nuxt	107.20 ms
SolidStart	110.60 ms
SvelteKit	118.00 ms
React Router	141.80 ms
TanStack Start	165.00 ms
Next.js	179.20 ms

The chart includes a dotted median reference line calculated from the visible framework values.

First Contentful Paint (ms)

First Contentful Paint (ms) data
Framework	Milliseconds
Astro	89.07 ms
Nuxt	107.39 ms
SolidStart	110.61 ms
SvelteKit	118.14 ms
React Router	142.14 ms
TanStack Start	165.04 ms
Next.js	178.88 ms

The chart includes a dotted median reference line calculated from the visible framework values.

Interaction to Next Paint (ms)

Interaction to Next Paint (ms) data
Framework	Milliseconds
Astro	1.26 ms
Nuxt	12.19 ms
SvelteKit	15.46 ms
SolidStart	16.84 ms
React Router	17.00 ms
Next.js	19.58 ms
TanStack Start	28.62 ms

The chart includes a dotted median reference line calculated from the visible framework values.

Server Side Throughput Tests

Methodology: Server Side Throughput Tests.

Framework	Ops/sec	Median Latency	Body Size	Duplication
Baseline HTML	764	1.307ms	96.83kb	1x
Astro	553	1.739ms	99.82kb	1x
Mastro	515	1.912ms	181.95kb	1x
Next.js	224	4.678ms	199.57kb	2x
Nuxt	360	2.708ms	201.27kb	2x
React Router	327	3.009ms	211.63kb	2x
SolidStart	390	2.514ms	230.24kb	2x
SvelteKit	437	2.218ms	183.53kb	2x
TanStack Start	306	3.231ms	193.62kb	2x

Ops/sec

Ops/sec data
Framework	Operations per second
Baseline HTML	764
Astro	553
Mastro	515
SvelteKit	437
SolidStart	390
Nuxt	360
React Router	327
TanStack Start	306
Next.js	224

The chart includes a dotted median reference line calculated from the visible framework values.

Body Size

Body Size data
Framework	Kilobytes
Baseline HTML	96.83 KB
Astro	99.82 KB
Mastro	181.95 KB
SvelteKit	183.53 KB
TanStack Start	193.62 KB
Next.js	199.57 KB
Nuxt	201.27 KB
React Router	211.63 KB
SolidStart	230.24 KB

The chart includes a dotted median reference line calculated from the visible framework values.

Median Latency

Median Latency data
Framework	Milliseconds
Baseline HTML	1.31 ms
Astro	1.74 ms
Mastro	1.91 ms
SvelteKit	2.22 ms
SolidStart	2.51 ms
Nuxt	2.71 ms
React Router	3.01 ms
TanStack Start	3.23 ms
Next.js	4.68 ms

The chart includes a dotted median reference line calculated from the visible framework values.

Server Side Load Test

Methodology: Server Side Load Test.

Framework	Peak req/s	Peak Connections	P99 @ 25	P99 @ 50	P99 @ 100	Total Req.
Baseline HTML	1,622.4	100	20ms	45ms	106ms	48,428
Astro	713	25	61ms	94ms	1485ms	22,527
Next.js	37.4	5	2165ms	4688ms	4808ms	1,032
Nuxt	64.6	10	2125ms	4321ms	4356ms	2,044
React Router	163.81	100	417ms	1843ms	3898ms	5,356
SolidStart	61.2	10	3285ms	4224ms	4213ms	2,002
SvelteKit	486.8	25	78ms	502ms	2449ms	15,395
TanStack Start	44.4	5	3895ms	4037ms	4492ms	1,370

P99 Latency

P99 Latency at 25 Connections

P99 Latency at 25 Connections data
Framework	Milliseconds
Baseline HTML	20.00 ms
Astro	61.00 ms
SvelteKit	78.00 ms
React Router	417.00 ms
Nuxt	2125.00 ms
Next.js	2165.00 ms
SolidStart	3285.00 ms
TanStack Start	3895.00 ms

The chart includes a dotted median reference line calculated from the visible framework values.

P99 Latency at 50 Connections

P99 Latency at 50 Connections data
Framework	Milliseconds
Baseline HTML	45.00 ms
Astro	94.00 ms
SvelteKit	502.00 ms
React Router	1843.00 ms
TanStack Start	4037.00 ms
SolidStart	4224.00 ms
Nuxt	4321.00 ms
Next.js	4688.00 ms

The chart includes a dotted median reference line calculated from the visible framework values.

P99 Latency at 100 Connections

P99 Latency at 100 Connections data
Framework	Milliseconds
Baseline HTML	106.00 ms
Astro	1485.00 ms
SvelteKit	2449.00 ms
React Router	3898.00 ms
SolidStart	4213.00 ms
Nuxt	4356.00 ms
TanStack Start	4492.00 ms
Next.js	4808.00 ms

The chart includes a dotted median reference line calculated from the visible framework values.

P90 Latency

P90 Latency at 25 Connections

P90 Latency at 25 Connections data
Framework	Milliseconds
Baseline HTML	17.00 ms
Astro	37.00 ms
SvelteKit	60.00 ms
React Router	172.00 ms
Nuxt	388.00 ms
SolidStart	597.00 ms
Next.js	761.00 ms
TanStack Start	762.00 ms

The chart includes a dotted median reference line calculated from the visible framework values.

P90 Latency at 50 Connections

P90 Latency at 50 Connections data
Framework	Milliseconds
Baseline HTML	32.00 ms
Astro	71.00 ms
SvelteKit	143.00 ms
React Router	339.00 ms
Nuxt	481.00 ms
SolidStart	552.00 ms
TanStack Start	847.00 ms
Next.js	2442.00 ms

The chart includes a dotted median reference line calculated from the visible framework values.

P90 Latency at 100 Connections

P90 Latency at 100 Connections data
Framework	Milliseconds
Baseline HTML	72.00 ms
Astro	143.00 ms
SvelteKit	198.00 ms
React Router	425.00 ms
SolidStart	635.00 ms
Nuxt	658.00 ms
TanStack Start	1317.00 ms
Next.js	2965.00 ms

The chart includes a dotted median reference line calculated from the visible framework values.

P75 Latency

P75 Latency at 25 Connections

P75 Latency at 25 Connections data
Framework	Milliseconds
Baseline HTML	17.00 ms
Astro	35.00 ms
SvelteKit	55.00 ms
React Router	159.00 ms
SolidStart	353.00 ms
Nuxt	383.00 ms
TanStack Start	502.00 ms
Next.js	732.00 ms

The chart includes a dotted median reference line calculated from the visible framework values.

P75 Latency at 50 Connections

P75 Latency at 50 Connections data
Framework	Milliseconds
Baseline HTML	32.00 ms
Astro	69.00 ms
SvelteKit	118.00 ms
React Router	305.00 ms
SolidStart	346.00 ms
Nuxt	467.00 ms
TanStack Start	507.00 ms
Next.js	1133.00 ms

The chart includes a dotted median reference line calculated from the visible framework values.

P75 Latency at 100 Connections

P75 Latency at 100 Connections data
Framework	Milliseconds
Baseline HTML	63.00 ms
Astro	139.00 ms
SvelteKit	167.00 ms
SolidStart	322.00 ms
React Router	362.00 ms
Nuxt	484.00 ms
TanStack Start	494.00 ms
Next.js	1168.00 ms

The chart includes a dotted median reference line calculated from the visible framework values.

Core Web Vitals

CWV Desktop

Framework	LCP%	CLS%	FCP%	TTFB%	INP%
Astro	91	87	91	82	97
SolidStart	91	66	91	83	100
SvelteKit	79	77	78	71	94
Next.js	72	69	76	67	94
React Router	61	62	66	70	90
Nuxt.js	65	57	67	59	95

Good Largest Contentful Paint

Measures how fast a page's main content loads. To provide a good user experience, the LCP should be 2.5 seconds or less.

Good Largest Contentful Paint data
Framework	%
Astro	91
SolidStart	91
SvelteKit	79
Next.js	72
Nuxt.js	65
React Router	61

The chart includes a dotted median reference line calculated from the visible framework values.

Good Cumulative Layout Shift

Measures how much and how far content unexpectedly moves on a page. To provide a good user experience, sites should maintain a CLS score of 0.1 or less for at least 75% of page visits.

Good Cumulative Layout Shift data
Framework	%
Astro	87
SvelteKit	77
Next.js	69
SolidStart	66
React Router	62
Nuxt.js	57

The chart includes a dotted median reference line calculated from the visible framework values.

Good First Contentful Paint

Measures initial loading speed. To provide a good user experience, the FCP should be 1.8 seconds or less.

Good Time To First Byte

Measures the time between the request for a resource and when the first byte of a response begins to arrive. A good TTFB is less than or equal to 800ms.

Good Time To First Byte data
Framework	%
SolidStart	83
Astro	82
SvelteKit	71
React Router	70
Next.js	67
Nuxt.js	59

Good Interaction to Next Paint

Measures overall page responsiveness to user actions. To provide a good user experience, the INP should be 200ms or less.

Good Interaction to Next Paint data
Framework	%
SolidStart	100
Astro	97
Nuxt.js	95
SvelteKit	94
Next.js	94
React Router	90

The chart includes a dotted median reference line calculated from the visible framework values.

CWV Mobile

Framework	LCP%	CLS%	FCP%	TTFB%	INP%
Astro	77	92	71	60	86
SolidStart	90	63	90	81	100
SvelteKit	67	81	60	58	75
Next.js	51	69	50	47	58
Nuxt.js	45	58	43	45	65
React Router	41	64	41	53	56

Good Largest Contentful Paint

Measures how fast a page's main content loads. To provide a good user experience, the LCP should be 2.5 seconds or less.

Good Largest Contentful Paint data
Framework	%
SolidStart	90
Astro	77
SvelteKit	67
Next.js	51
Nuxt.js	45
React Router	41

The chart includes a dotted median reference line calculated from the visible framework values.

Good Cumulative Layout Shift

Measures how much and how far content unexpectedly moves on a page. To provide a good user experience, sites should maintain a CLS score of 0.1 or less for at least 75% of page visits.

Good Cumulative Layout Shift data
Framework	%
Astro	92
SvelteKit	81
Next.js	69
React Router	64
SolidStart	63
Nuxt.js	58

The chart includes a dotted median reference line calculated from the visible framework values.

Good First Contentful Paint

Measures initial loading speed. To provide a good user experience, the FCP should be 1.8 seconds or less.

Good Time To First Byte

Measures the time between the request for a resource and when the first byte of a response begins to arrive. A good TTFB is less than or equal to 800ms.

Good Time To First Byte data
Framework	%
SolidStart	81
Astro	60
SvelteKit	58
React Router	53
Next.js	47
Nuxt.js	45

Good Interaction to Next Paint

Measures overall page responsiveness to user actions. To provide a good user experience, the INP should be 200ms or less.

Good Interaction to Next Paint data
Framework	%
SolidStart	100
Astro	86
SvelteKit	75
Nuxt.js	65
Next.js	58
React Router	56

The chart includes a dotted median reference line calculated from the visible framework values.

Methodology: Core Web Vitals.