summitpartners.com website review

2 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.0 s.

11 files are served with short cache lifetimes, so returning visitors download them again (10.6 MB).

8 third-party services load with your homepage (website-files.com, Google Tag Manager and cookiepro.com and others), adding 12.1 MB and 421 ms of main-thread time.

website-files.com costs a phone 187 ms of main-thread work and 11.7 MB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

8 images could be 302 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 750 ms faster on a phone.

Your mobile performance score is 67 (desktop: 90). Pages that score under 90 lose visitors before the first paint.

About 191 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 300 ms faster on a phone.

About 69 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 300 ms faster on a phone.

3 long tasks block the main thread while loading, the longest for 78 ms. During a long task the page ignores taps.

Polyfills for old browsers add 9 KiB JavaScript that modern phones do not need.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

Real Chrome users on phones do not pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)). Google uses this in ranking.

Your largest element takes 5.3 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the element shown below.

For real visitors the layout shifts by 0.12 (75th percentile). Good is under 0.1.

The page becomes fully interactive after 6.9 s. Good is under 3.8 s.

The layout shifts by 0.222 while loading, so content jumps under the reader's thumb. Good is under 0.1.

The first text or image appears after 2.2 s on a phone. Good is under 1.8 s.

9 images have no width and height attributes, so the layout jumps as each one loads.

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' tap response (inp) went from 91 ms to 96 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 12.2 MB in 48 requests on a phone: media 10.5 MB (2), images 1.1 MB (22) and scripts 482 KiB (12). Under 2 MB keeps phones on slow connections fast.

1 image (42 KiB) is JPEG, PNG or GIF. The same pictures as WebP or AVIF are usually much smaller at the same quality, and every current browser shows them.

1 image further down the page (108 KiB) download before anyone scrolls to it. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 3.46 g of CO₂e: 414.8 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Document should not have more than one banner landmark: 1 element on the page fails this check, rated moderate by axe-core.

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 1 element on the page fails this check, rated moderate by axe-core.

All page content should be contained by landmarks: 1 element on the page fails this check, rated moderate by axe-core.

1 visible link has no text or label, so screen readers cannot say where it goes.

Elements with visible text labels do not have matching accessible names. (1 element).

3 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.

The homepage links to 58 pages on summitpartners.com and 6 external pages.

We fetched 15 pages linked from your homepage (of 36 found) and read each the way a search engine does.

7 images failed to load on a phone, for example https://www.summitpartners.com/.

2 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

There is no form on the homepage, so every lead has to click through to another page first.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

The homepage carries about 540 words of visible text.

Before a visitor clicks anything, the page loads Google Tag Manager (measured from a US location before any click). A consent tool (OneTrust) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 2 cookies (measured from a US location before any click).

Loading the homepage contacts 10 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.