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	129.4ms	129.16ms	4.13ms
Next.js	376.6ms	376.49ms	19.04ms
Nuxt	216.4ms	216.58ms	13.68ms
React Router	232.2ms	232.09ms	21.41ms
SolidStart	200.4ms	200.35ms	21.17ms
SvelteKit	203.4ms	203.54ms	15.02ms
TanStack Start	167ms	166.93ms	30.09ms

First Paint (ms)

First Paint (ms) data
Framework	Milliseconds
Astro	129.40 ms
TanStack Start	167.00 ms
SolidStart	200.40 ms
SvelteKit	203.40 ms
Nuxt	216.40 ms
React Router	232.20 ms
Next.js	376.60 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	129.16 ms
TanStack Start	166.93 ms
SolidStart	200.35 ms
SvelteKit	203.54 ms
Nuxt	216.58 ms
React Router	232.09 ms
Next.js	376.49 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	4.13 ms
Nuxt	13.68 ms
SvelteKit	15.02 ms
Next.js	19.04 ms
SolidStart	21.17 ms
React Router	21.41 ms
TanStack Start	30.09 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	123ms	123ms	1.49ms
Next.js	193.8ms	193.82ms	22.34ms
Nuxt	148.6ms	148.61ms	8.93ms
React Router	119ms	119.1ms	13.88ms
SolidStart	172.2ms	172.27ms	17.22ms
SvelteKit	136.6ms	136.55ms	18.03ms
TanStack Start	144.2ms	144.29ms	27.77ms

First Paint (ms)

First Paint (ms) data
Framework	Milliseconds
React Router	119.00 ms
Astro	123.00 ms
SvelteKit	136.60 ms
TanStack Start	144.20 ms
Nuxt	148.60 ms
SolidStart	172.20 ms
Next.js	193.80 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
React Router	119.10 ms
Astro	123.00 ms
SvelteKit	136.55 ms
TanStack Start	144.29 ms
Nuxt	148.61 ms
SolidStart	172.27 ms
Next.js	193.82 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	1.49 ms
Nuxt	8.93 ms
React Router	13.88 ms
SolidStart	17.22 ms
SvelteKit	18.03 ms
Next.js	22.34 ms
TanStack Start	27.77 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	854	1.197ms	96.83kb	1x
Astro	543	1.77ms	99.82kb	1x
Mastro	515	1.912ms	181.95kb	1x
Next.js	216	4.712ms	199.57kb	2x
Nuxt	354	2.749ms	201.27kb	2x
React Router	351	2.822ms	211.63kb	2x
SolidStart	391	2.569ms	230.24kb	2x
SvelteKit	436	2.226ms	183.53kb	2x
TanStack Start	312	3.176ms	193.62kb	2x

Ops/sec

Ops/sec data
Framework	Operations per second
Baseline HTML	854
Astro	543
Mastro	515
SvelteKit	436
SolidStart	391
Nuxt	354
React Router	351
TanStack Start	312
Next.js	216

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	1.20 ms
Astro	1.77 ms
Mastro	1.91 ms
SvelteKit	2.23 ms
SolidStart	2.57 ms
Nuxt	2.75 ms
React Router	2.82 ms
TanStack Start	3.18 ms
Next.js	4.71 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	1,650.6	50	19ms	42ms	98ms	49,261
Astro	751.6	25	50ms	93ms	1425ms	23,131
Next.js	35.4	1	2297ms	4660ms	4701ms	977
Nuxt	66	10	2078ms	4065ms	4293ms	2,098
React Router	171.6	10	276ms	1793ms	3954ms	5,646
SolidStart	62.4	10	3428ms	4106ms	4125ms	2,007
SvelteKit	455.6	25	91ms	540ms	2618ms	14,417
TanStack Start	44	5	3684ms	4454ms	4359ms	1,344

P99 Latency

P99 Latency at 25 Connections

P99 Latency at 25 Connections data
Framework	Milliseconds
Baseline HTML	19.00 ms
Astro	50.00 ms
SvelteKit	91.00 ms
React Router	276.00 ms
Nuxt	2078.00 ms
Next.js	2297.00 ms
SolidStart	3428.00 ms
TanStack Start	3684.00 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	42.00 ms
Astro	93.00 ms
SvelteKit	540.00 ms
React Router	1793.00 ms
Nuxt	4065.00 ms
SolidStart	4106.00 ms
TanStack Start	4454.00 ms
Next.js	4660.00 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	98.00 ms
Astro	1425.00 ms
SvelteKit	2618.00 ms
React Router	3954.00 ms
SolidStart	4125.00 ms
Nuxt	4293.00 ms
TanStack Start	4359.00 ms
Next.js	4701.00 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	35.00 ms
SvelteKit	65.00 ms
React Router	150.00 ms
Nuxt	393.00 ms
SolidStart	599.00 ms
TanStack Start	682.00 ms
Next.js	824.00 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	31.00 ms
Astro	69.00 ms
SvelteKit	146.00 ms
React Router	315.00 ms
Nuxt	495.00 ms
SolidStart	568.00 ms
TanStack Start	968.00 ms
Next.js	2539.00 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	137.00 ms
SvelteKit	229.00 ms
React Router	404.00 ms
SolidStart	598.00 ms
Nuxt	639.00 ms
TanStack Start	1305.00 ms
Next.js	2863.00 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	33.00 ms
SvelteKit	59.00 ms
React Router	145.00 ms
SolidStart	344.00 ms
Nuxt	382.00 ms
TanStack Start	557.00 ms
Next.js	760.00 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	31.00 ms
Astro	68.00 ms
SvelteKit	120.00 ms
React Router	287.00 ms
SolidStart	354.00 ms
Nuxt	448.00 ms
TanStack Start	542.00 ms
Next.js	1161.00 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	62.00 ms
Astro	135.00 ms
SvelteKit	182.00 ms
SolidStart	328.00 ms
React Router	368.00 ms
Nuxt	441.00 ms
TanStack Start	647.00 ms
Next.js	1148.00 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.