www.flashbots.net speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 14:37 UTC. Grade A (96/100), with the screenshots, the timings and the fixes that matter.

https://www.flashbots.net/

20 October 2026 at 14:37 UTC · Free test · report pt_5bc139c99754
Grade
A
96/100
Performance95/100
Structure98/100

15 audit(s) passed, 1 need work

First byte (TTFB)399 msmeasured from this server
Fully loaded1.47 sfirst byte + slowest asset
Requests19document + assets
Page weight284.4 KBcompressed transfer
HTML document31.9 KBbr
ProtocolHTTP/3Vercel

Where the first byte went

  • DNS lookup 70 ms 18%
  • TCP connect 37 ms 9%
  • Server wait 292 ms 73%

Measured on the connection that fetched the HTML. Every other request on the page waits for the end of this bar before it can start.

How this page compares

First bytefaster than 57% of 4,999 pages tested here399 ms against a median of 449 ms
Page weightlighter than 73% of 4,999 pages tested here284.4 KB against a median of 650.5 KB
Fully loadedfaster than 72% of 4,999 pages tested here1.47 s against a median of 1.84 s
Requestssends fewer requests than 80% of 4,999 pages tested here19 against a median of 26

Every report published here is in this comparison, so it is a reference population of pages tested from one server - not a benchmark of the whole web.

What these numbers mean

  • The first byte arrived in 399 ms. That is workable, and the cheapest win left is caching or a warmer connection.
  • The page transfers 284.4 KB over 19 request(s). Javascript files are 74% of it, so defer what is not needed for the first screen, and drop tags nobody uses.
  • The HTML itself arrives br-compressed.
  • It runs over HTTP/3, so the assets share a connection instead of opening one each.
  • The largest element painted at 808 ms, inside the 2.5 s Google calls good.
  • Layout stayed still (CLS 0.012), so nothing jumps under the reader's cursor.

Fix first: Avoid extra redirects - Link to the canonical URL (and make sure http, the apex domain and www all point at it) so no visitor pays a redirect first.

Read on one shared server, not a visitor's phone: use it to compare pages against each other, not as a promise about every connection. We fix what these tests find.

Screenshot

What the page looks like

Loaded in headless Chromium on this server. Click an image to open it full size.

Mobile screenshot of www.flashbots.net
Mobile 390 × 844 · 45.5 KB · page is 6000 px tall

Browser render

The same URL loaded in a real browser, so these are the readings curl cannot produce. The grade above is still built from the server measurements.

Largest contentful paint808 msgood is under 2.5 s
Cumulative layout shift0.012under 0.1 is stable
Total blocking timenone over 50 mslong tasks during load
First contentful paint740 msfirst content on screen
Browser page weight600.7 KB20 request(s), scripts included
Largest contentful paint808 ms
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.012
Goodgood under 0.1, poor over 0.25
Total blocking timenone over 50 ms
Goodgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Javascript 12 requests
210.3 KB 74%
Images 3 requests
22.1 KB 8%
Css 2 requests
19.7 KB 7%
Other 1 request
475 B 0%

Transfer size, compressed as sent. 19 request(s) in total, 284.4 KB across all of them.

Top issues

Avoid extra redirects

medium impact

1 redirect hop(s) before the page load started, each one a full round trip before the first byte.

Fix: Link to the canonical URL (and make sure http, the apex domain and www all point at it) so no visitor pays a redirect first.

Waterfall

Slowest requests

JAVASCRIPTwww.flashbots.net/_next/static/chunks/737-7db331f49e9917…
1.07 s
JAVASCRIPTwww.flashbots.net/_next/static/chunks/pages/_app-0c74bde…
952 ms
JAVASCRIPTwww.flashbots.net/_next/static/chunks/9803-c558b0e2cf2a0…
928 ms
IMAGESwww.flashbots.net/badge.svg
848 ms
JAVASCRIPTwww.flashbots.net/_next/static/jasa8lEIXqhSSrrGHJR7x/_bu…
821 ms
JAVASCRIPTwww.flashbots.net/_next/static/chunks/5333-1f3e11007dfa6…
815 ms
CSSwww.flashbots.net/_next/static/css/8876806089e17ed7.css
808 ms
JAVASCRIPTwww.flashbots.net/_next/static/chunks/pages/index-16881b…
804 ms
IMAGESwww.flashbots.net/favicon.png
794 ms
OTHERwww.flashbots.net/manifest.json
794 ms

Each bar is one request's own response time, scaled to the slowest. Assets were fetched in parallel, so the bars overlap in real time rather than stacking. first party third party

RequestTypeStatusTimeSize
https://www.flashbots.net/_next/static/chunks/737-7db331f49e9917c9.jsjavascript2001.07 s3.7 KB
https://www.flashbots.net/_next/static/chunks/pages/_app-0c74bde55a46d37b.jsjavascript200952 ms48.1 KB
https://www.flashbots.net/_next/static/chunks/9803-c558b0e2cf2a035e.jsjavascript200928 ms12.0 KB
https://www.flashbots.net/badge.svgimages200848 ms15.5 KB
https://www.flashbots.net/_next/static/jasa8lEIXqhSSrrGHJR7x/_buildManifest.jsjavascript200821 ms524 B
https://www.flashbots.net/_next/static/chunks/5333-1f3e11007dfa651b.jsjavascript200815 ms4.9 KB
https://www.flashbots.net/_next/static/css/8876806089e17ed7.csscss200808 ms3.4 KB
https://www.flashbots.net/_next/static/chunks/pages/index-16881b90c0dcd351.jsjavascript200804 ms490 B
https://www.flashbots.net/favicon.pngimages200794 ms2.6 KB
https://www.flashbots.net/manifest.jsonother200794 ms475 B
https://www.flashbots.net/favicon.icoimages200783 ms3.9 KB
https://www.flashbots.net/_next/static/chunks/2098-9045cd159a6517ba.jsjavascript200782 ms27.6 KB
https://www.flashbots.net/_next/static/chunks/webpack-4983eb93f5db9996.jsjavascript200780 ms2.8 KB
https://www.flashbots.net/_next/static/jasa8lEIXqhSSrrGHJR7x/_ssgManifest.jsjavascript200771 ms118 B
https://www.flashbots.net/_next/static/chunks/main-a3f443a876747d13.jsjavascript200758 ms32.4 KB
https://www.flashbots.net/_next/static/chunks/framework-d51ece3d757c7ed2.jsjavascript200756 ms45.6 KB
https://www.flashbots.net/_next/static/chunks/polyfills-c67a75d1b6f99dc8.jsjavascript200756 ms31.9 KB
https://www.flashbots.net/_next/static/css/9520cfab9e593b39.csscss200726 ms16.3 KB
Report this page

The page is removed when the owner agrees. Sending this removes nothing by itself.

Run this test on your own site

The same engine, free, with the screenshots and the fixes. No account needed.