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	182ms	181.85ms	0ms
Next.js	388.4ms	388.41ms	0ms
Nuxt	250.8ms	250.87ms	0ms
React Router	219.8ms	219.58ms	0ms
SolidStart	212ms	211.97ms	0ms
SvelteKit	162ms	162.15ms	0ms
TanStack Start	211.8ms	211.68ms	0ms

First Paint (ms)

First Paint (ms) data
Framework	Milliseconds
SvelteKit	162.00 ms
Astro	182.00 ms
TanStack Start	211.80 ms
SolidStart	212.00 ms
React Router	219.80 ms
Nuxt	250.80 ms
Next.js	388.40 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
SvelteKit	162.15 ms
Astro	181.85 ms
TanStack Start	211.68 ms
SolidStart	211.97 ms
React Router	219.58 ms
Nuxt	250.87 ms
Next.js	388.41 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	131ms	131.21ms	0ms
Mastro	160.2ms	160.41ms	0ms
Next.js	180.8ms	180.67ms	0ms
Nuxt	161.8ms	161.73ms	0ms
React Router	163ms	162.98ms	0ms
SolidStart	122.6ms	122.66ms	0ms
SvelteKit	130.4ms	130.55ms	0ms
TanStack Start	173.4ms	173.23ms	0ms

First Paint (ms)

First Paint (ms) data
Framework	Milliseconds
SolidStart	122.60 ms
SvelteKit	130.40 ms
Astro	131.00 ms
Mastro	160.20 ms
Nuxt	161.80 ms
React Router	163.00 ms
TanStack Start	173.40 ms
Next.js	180.80 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	122.66 ms
SvelteKit	130.55 ms
Astro	131.21 ms
Mastro	160.41 ms
Nuxt	161.73 ms
React Router	162.98 ms
TanStack Start	173.23 ms
Next.js	180.67 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	833	1.207ms	96.83kb	1x
Astro	673	1.431ms	96.89kb	1x
Mastro	277	3.545ms	327.46kb	1.5x
Next.js	234	4.503ms	199.57kb	2x
Nuxt	367	2.646ms	201.27kb	2x
React Router	349	2.831ms	211.63kb	2x
SolidStart	411	2.412ms	230.24kb	2x
SvelteKit	442	2.19ms	183.53kb	2x
TanStack Start	330	3.006ms	193.62kb	2x

Ops/sec

Ops/sec data
Framework	Operations per second
Baseline HTML	833
Astro	673
SvelteKit	442
SolidStart	411
Nuxt	367
React Router	349
TanStack Start	330
Mastro	277
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	230.24 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	1.21 ms
Astro	1.43 ms
SvelteKit	2.19 ms
SolidStart	2.41 ms
Nuxt	2.65 ms
React Router	2.83 ms
TanStack Start	3.01 ms
Mastro	3.54 ms
Next.js	4.50 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	1,556.4	100	20ms	47ms	114ms	45,943
Astro	1,175	50	40ms	68ms	402ms	34,638
Mastro	583.21	25	45ms	136ms	1152ms	18,487
Next.js	37.8	5	2194ms	4640ms	4695ms	1,037
Nuxt	56.2	25	2578ms	4351ms	4407ms	1,749
React Router	170.6	10	310ms	1606ms	3904ms	5,616
SolidStart	62.8	10	3350ms	3703ms	4038ms	2,032
SvelteKit	500.2	25	83ms	366ms	2569ms	15,980
TanStack Start	43.4	5	3707ms	4300ms	4528ms	1,319

P99 Latency

P99 Latency at 25 Connections

P99 Latency at 25 Connections data
Framework	Milliseconds
Baseline HTML	20.00 ms
Astro	40.00 ms
Mastro	45.00 ms
SvelteKit	83.00 ms
React Router	310.00 ms
Next.js	2194.00 ms
Nuxt	2578.00 ms
SolidStart	3350.00 ms
TanStack Start	3707.00 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	47.00 ms
Astro	68.00 ms
Mastro	136.00 ms
SvelteKit	366.00 ms
React Router	1606.00 ms
SolidStart	3703.00 ms
TanStack Start	4300.00 ms
Nuxt	4351.00 ms
Next.js	4640.00 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	114.00 ms
Astro	402.00 ms
Mastro	1152.00 ms
SvelteKit	2569.00 ms
React Router	3904.00 ms
SolidStart	4038.00 ms
Nuxt	4407.00 ms
TanStack Start	4528.00 ms
Next.js	4695.00 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	18.00 ms
Astro	23.00 ms
Mastro	44.00 ms
SvelteKit	57.00 ms
React Router	156.00 ms
Nuxt	445.00 ms
SolidStart	574.00 ms
Next.js	743.00 ms
TanStack Start	829.00 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	34.00 ms
Astro	43.00 ms
Mastro	91.00 ms
SvelteKit	133.00 ms
React Router	298.00 ms
SolidStart	501.00 ms
Nuxt	617.00 ms
TanStack Start	851.00 ms
Next.js	2415.00 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	84.00 ms
Astro	88.00 ms
Mastro	186.00 ms
SvelteKit	249.00 ms
React Router	406.00 ms
SolidStart	595.00 ms
Nuxt	1016.00 ms
TanStack Start	1412.00 ms
Next.js	2876.00 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	18.00 ms
Astro	22.00 ms
Mastro	43.00 ms
SvelteKit	53.00 ms
React Router	143.00 ms
SolidStart	349.00 ms
Nuxt	437.00 ms
TanStack Start	535.00 ms
Next.js	727.00 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	33.00 ms
Astro	42.00 ms
Mastro	86.00 ms
SvelteKit	110.00 ms
React Router	284.00 ms
SolidStart	366.00 ms
Nuxt	502.00 ms
TanStack Start	582.00 ms
Next.js	1139.00 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	67.00 ms
Astro	84.00 ms
SvelteKit	167.00 ms
Mastro	173.00 ms
SolidStart	341.00 ms
React Router	369.00 ms
Nuxt	494.00 ms
TanStack Start	529.00 ms
Next.js	1096.00 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.