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	185.2ms	185.27ms	0ms
Next.js	392.4ms	392.38ms	0ms
Nuxt	239.4ms	239.28ms	0ms
React Router	223ms	222.9ms	0ms
SolidStart	163.8ms	163.92ms	0ms
SvelteKit	190.8ms	190.67ms	0ms
TanStack Start	210.8ms	210.83ms	0ms

First Paint (ms)

First Paint (ms) data
Framework	Milliseconds
SolidStart	163.80 ms
Astro	185.20 ms
SvelteKit	190.80 ms
TanStack Start	210.80 ms
React Router	223.00 ms
Nuxt	239.40 ms
Next.js	392.40 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
SolidStart	163.92 ms
Astro	185.27 ms
SvelteKit	190.67 ms
TanStack Start	210.83 ms
React Router	222.90 ms
Nuxt	239.28 ms
Next.js	392.38 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	0.00 ms
Next.js	0.00 ms
Nuxt	0.00 ms
React Router	0.00 ms
SolidStart	0.00 ms
SvelteKit	0.00 ms
TanStack Start	0.00 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	120.2ms	120.2ms	0ms
Mastro	118.6ms	118.61ms	0ms
Next.js	201.2ms	201.06ms	0ms
Nuxt	144ms	144.11ms	0ms
React Router	169ms	169.03ms	0ms
SolidStart	181.2ms	181.21ms	0ms
SvelteKit	136.8ms	136.75ms	0ms
TanStack Start	157.8ms	158.01ms	0ms

First Paint (ms)

First Paint (ms) data
Framework	Milliseconds
Mastro	118.60 ms
Astro	120.20 ms
SvelteKit	136.80 ms
Nuxt	144.00 ms
TanStack Start	157.80 ms
React Router	169.00 ms
SolidStart	181.20 ms
Next.js	201.20 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
Mastro	118.61 ms
Astro	120.20 ms
SvelteKit	136.75 ms
Nuxt	144.11 ms
TanStack Start	158.01 ms
React Router	169.03 ms
SolidStart	181.21 ms
Next.js	201.06 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	0.00 ms
Mastro	0.00 ms
Next.js	0.00 ms
Nuxt	0.00 ms
React Router	0.00 ms
SolidStart	0.00 ms
SvelteKit	0.00 ms
TanStack Start	0.00 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	851	1.199ms	96.83kb	1x
Astro	673	1.424ms	96.89kb	1x
Mastro	345	2.872ms	327.46kb	1.5x
Next.js	234	4.49ms	199.57kb	2x
Nuxt	364	2.661ms	201.27kb	2x
React Router	350	2.825ms	211.63kb	2x
SolidStart	429	2.256ms	224.17kb	2x
SvelteKit	453	2.136ms	183.53kb	2x
TanStack Start	332	2.997ms	193.62kb	2x

Ops/sec

Ops/sec data
Framework	Operations per second
Baseline HTML	851
Astro	673
SvelteKit	453
SolidStart	429
Nuxt	364
React Router	350
Mastro	345
TanStack Start	332
Next.js	234

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	96.89 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	224.17 KB
Mastro	327.46 KB

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

Median Latency

Median Latency data
Framework	Milliseconds
Baseline HTML	1.20 ms
Astro	1.42 ms
SvelteKit	2.14 ms
SolidStart	2.26 ms
Nuxt	2.66 ms
React Router	2.83 ms
Mastro	2.87 ms
TanStack Start	3.00 ms
Next.js	4.49 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	1,615.8	200	19ms	44ms	109ms	47,872
Astro	1,230	100	35ms	67ms	209ms	36,795
Mastro	580	25	45ms	137ms	1381ms	18,305
Next.js	36	5	2228ms	4661ms	4628ms	997
Nuxt	64	5	2227ms	4397ms	4416ms	2,012
React Router	148.4	25	374ms	2179ms	3930ms	4,879
SolidStart	58.8	10	3448ms	4231ms	4031ms	1,806
SvelteKit	481.6	10	87ms	425ms	2546ms	15,480
TanStack Start	44	5	3705ms	4347ms	4636ms	1,349

P99 Latency

P99 Latency at 25 Connections

P99 Latency at 25 Connections data
Framework	Milliseconds
Baseline HTML	19.00 ms
Astro	35.00 ms
Mastro	45.00 ms
SvelteKit	87.00 ms
React Router	374.00 ms
Nuxt	2227.00 ms
Next.js	2228.00 ms
SolidStart	3448.00 ms
TanStack Start	3705.00 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	44.00 ms
Astro	67.00 ms
Mastro	137.00 ms
SvelteKit	425.00 ms
React Router	2179.00 ms
SolidStart	4231.00 ms
TanStack Start	4347.00 ms
Nuxt	4397.00 ms
Next.js	4661.00 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	109.00 ms
Astro	209.00 ms
Mastro	1381.00 ms
SvelteKit	2546.00 ms
React Router	3930.00 ms
SolidStart	4031.00 ms
Nuxt	4416.00 ms
Next.js	4628.00 ms
TanStack Start	4636.00 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	23.00 ms
Mastro	44.00 ms
SvelteKit	61.00 ms
React Router	173.00 ms
Nuxt	418.00 ms
SolidStart	641.00 ms
Next.js	785.00 ms
TanStack Start	808.00 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	33.00 ms
Astro	41.00 ms
Mastro	89.00 ms
SvelteKit	148.00 ms
React Router	351.00 ms
Nuxt	512.00 ms
SolidStart	649.00 ms
TanStack Start	847.00 ms
Next.js	2582.00 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	75.00 ms
Astro	81.00 ms
Mastro	189.00 ms
SvelteKit	233.00 ms
React Router	419.00 ms
Nuxt	751.00 ms
SolidStart	845.00 ms
TanStack Start	1458.00 ms
Next.js	2807.00 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	16.00 ms
Astro	21.00 ms
Mastro	43.00 ms
SvelteKit	55.00 ms
React Router	166.00 ms
SolidStart	388.00 ms
Nuxt	397.00 ms
TanStack Start	510.00 ms
Next.js	765.00 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	40.00 ms
Mastro	86.00 ms
SvelteKit	114.00 ms
React Router	334.00 ms
SolidStart	387.00 ms
Nuxt	468.00 ms
TanStack Start	573.00 ms
Next.js	1110.00 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	65.00 ms
Astro	79.00 ms
SvelteKit	156.00 ms
Mastro	174.00 ms
React Router	389.00 ms
SolidStart	419.00 ms
Nuxt	460.00 ms
TanStack Start	562.00 ms
Next.js	1132.00 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.