www.datto.com speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 13:07 UTC. Grade B (89/100), with the screenshots, the timings and the fixes that matter.

https://www.datto.com/

20 October 2026 at 13:07 UTC · Free test · report pt_61c5d3fd59ab

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Grade

89/100

Performance94/100

Structure82/100

12 audit(s) passed, 4 need work

First byte (TTFB)324 msmeasured from this server

Fully loaded1.41 sfirst byte + slowest asset

Requests26document + assets

Page weight1.26 MBcompressed transfer

HTML document38.8 KBbr

ProtocolHTTP/3cloudflare

Where the first byte went

DNS lookup 70 ms 22%
TCP connect 53 ms 16%
Server wait 201 ms 62%

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 70% of 4,999 pages tested here324 ms against a median of 449 ms

Page weightheavier than 70% of 4,999 pages tested here1.26 MB against a median of 650.3 KB

Fully loadedfaster than 76% of 4,999 pages tested here1.41 s against a median of 1.84 s

Requestssends more requests than 100% of 4,999 pages tested here26 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 324 ms. That is workable, and the cheapest win left is caching or a warmer connection.
The page transfers 1.26 MB over 26 request(s). Images files are 97% of it, so resize and recompress the largest images before anything else.
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 684 ms, inside the 2.5 s Google calls good.
The main thread was blocked for 53 ms in total, which is not enough to feel.

Fix first: Render-blocking resources - Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.

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.datto.com — **Mobile** 390 × 844 · 161.6 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 paint684 msgood is under 2.5 s

Cumulative layout shift0.000under 0.1 is stable

Total blocking time53 mslong tasks during load

First contentful paint684 msfirst content on screen

Browser page weight1.53 MB53 request(s), scripts included

Largest contentful paint684 ms

Goodgood under 2.5 s, poor over 4 s

Cumulative layout shift0.000

Goodgood under 0.1, poor over 0.25

Total blocking time53 ms

Goodgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Images 24 requests

1.22 MB 97%

Transfer size, compressed as sent. 26 request(s) in total, 1.26 MB across all of them.

Top issues

Render-blocking resources

high impact

7 render-blocking resource(s) in the document head (2 script(s), 5 stylesheet(s)). The page cannot paint until each one arrives.

Fix: Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.

Image delivery and format

medium impact

0 image(s) over 200 KB and 5 large image(s) still served as JPEG or PNG.

Fix: Serve WebP or AVIF with a JPEG fallback, size images to the space they occupy, and lazy-load anything below the fold. Images are usually more than half of a slow page.

Total page weight

medium impact

The page transfers 1.26 MB across 26 request(s), with the document itself at 38.8 KB.

Fix: Work through the heaviest assets first: images, then fonts, then third-party scripts.

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.