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	160.4ms	160.26ms	2.52ms
Next.js	342.8ms	342.88ms	19.23ms
Nuxt	166.6ms	166.43ms	11.38ms
React Router	156.4ms	156.51ms	21.88ms
SolidStart	117.2ms	117.13ms	20.7ms
SvelteKit	132.4ms	132.35ms	13.7ms
TanStack Start	168.6ms	168.6ms	30.36ms

First Paint (ms)

First Paint (ms) chart

First Contentful Paint (ms)

First Contentful Paint (ms) chart

Interaction to Next Paint (ms)

Interaction to Next Paint (ms) chart

Server Side Rendered Tests

Methodology: Server Side Rendered Tests.

Framework	First Paint	FCP	INP
Astro	85.8ms	85.99ms	2.12ms
Next.js	153ms	152.84ms	22.32ms
Nuxt	109.2ms	109.16ms	9.68ms
React Router	107.4ms	107.48ms	19.36ms
SolidStart	127.2ms	127.24ms	14.15ms
SvelteKit	142.4ms	142.53ms	12.21ms
TanStack Start	133.2ms	133.12ms	30.7ms

First Paint (ms)

First Paint (ms) chart

First Contentful Paint (ms)

First Contentful Paint (ms) chart

Interaction to Next Paint (ms)

Interaction to Next Paint (ms) chart

Server Side Throughput Tests

Methodology: Server Side Throughput Tests.

Framework	Ops/sec	Median Latency	Body Size	Duplication
Baseline HTML	840	1.201ms	96.83kb	1x
Astro	524	1.83ms	99.82kb	1x
Mastro	515	1.912ms	181.95kb	1x
Next.js	227	4.654ms	199.57kb	2x
Nuxt	355	2.735ms	201.27kb	2x
React Router	342	2.874ms	211.63kb	2x
SolidStart	394	2.592ms	230.24kb	2x
SvelteKit	429	2.26ms	183.49kb	2x
TanStack Start	307	3.238ms	193.62kb	2x

Ops/sec

Ops/sec chart

Body Size

Body Size chart

Median Latency

Median Latency chart

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	1,637.2	200	21ms	46ms	115ms	48,156
Astro	726.2	25	54ms	100ms	1449ms	22,644
Next.js	35.4	1	2156ms	4730ms	4727ms	991
Nuxt	66.8	10	2088ms	4077ms	4305ms	2,090
React Router	163.6	50	401ms	1739ms	4119ms	5,235
SolidStart	59.2	10	3859ms	4119ms	4081ms	1,906
SvelteKit	479	10	92ms	409ms	3447ms	15,278
TanStack Start	40.21	10	3988ms	4599ms	4593ms	1,235

P99 Latency

P99 Latency at 25 Connections

P99 Latency at 25 Connections chart

P99 Latency at 50 Connections

P99 Latency at 50 Connections chart

P99 Latency at 100 Connections

P99 Latency at 100 Connections chart

P90 Latency

P90 Latency at 25 Connections

P90 Latency at 25 Connections chart

P90 Latency at 50 Connections

P90 Latency at 50 Connections chart

P90 Latency at 100 Connections

P90 Latency at 100 Connections chart

P75 Latency

P75 Latency at 25 Connections

P75 Latency at 25 Connections chart

P75 Latency at 50 Connections

P75 Latency at 50 Connections chart

P75 Latency at 100 Connections

P75 Latency at 100 Connections chart

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 chart

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 chart

Good First Contentful Paint

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

Good First Contentful Paint chart

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 chart

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 chart

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 chart

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 chart

Good First Contentful Paint

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

Good First Contentful Paint chart

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 chart

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 chart

Methodology: Core Web Vitals.