nelsonlabs.com website review

38 files block the first paint until they finish downloading. Deferring or inlining them could save about 3.8 s.

formstack.com costs a phone 1.3 s of main-thread work and 1.0 MB of downloads while your page loads. That alone is enough to make taps feel slow. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

Your mobile performance score is 42. Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

A phone's processor spends 4.6 s on main-thread work while loading, 2.7 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

The page has 3,124 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

8 third-party services load with your homepage (formstack.com, Google CDN and Other Google APIs/SDKs and others), adding 2.1 MB and 2.0 s of main-thread time.

About 1.2 MB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 720 ms faster on a phone.

8 files are served with short cache lifetimes, so returning visitors download them again (919 KiB).

18 long tasks block the main thread while loading, the longest for 949 ms. During a long task the page ignores taps.

Google CDN costs a phone 489 ms of main-thread work and 760 KiB 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.

About 78 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.

13 KiB could be saved by minifying CSS.

13 KiB could be saved by minifying JavaScript.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 50 ms).

Polyfills for old browsers add 48 KiB JavaScript that modern phones do not need.

3 images could be 19 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

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.

The page becomes fully interactive after 17.7 s. Good is under 3.8 s.

Scripts block taps and scrolling for 1.8 s in total while the page loads. Good is under 200 ms.

Visually, the page fills in at 8.7 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 4.3 s on a phone. Good is under 1.8 s.

Your largest element takes 4.3 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “As a leading global provider of microbiological and analyti…”. Most of its time is element render delay (2.3 s).

Real visitors wait 3.1 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 98 ms to 124 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors see the first content after 2.7 s (75th percentile). Good is under 1.8 s.

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

Your homepage downloads 3.2 MB in 86 requests on a phone: scripts 1.9 MB (32), other files 479 KiB (13) and fonts 323 KiB (8). Under 2 MB keeps phones on slow connections fast.

1 image (215 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.

By the Sustainable Web Design model, a visit to your homepage emits about 0.90 g of CO₂e: 107.6 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

16 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.

All page content should be contained by landmarks: 18 elements on the page fail this check, rated moderate by axe-core.

The viewport tag blocks pinch-zoom, which low-vision visitors rely on.

5 visible links have no text or label, so screen readers cannot say where they go.

Headings skip levels (h2 → h4), which makes the page harder to scan with a screen reader.

No Open Graph image, so links shared on LinkedIn, Slack or Facebook show no preview picture.

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

2 links have no real href, so search engines can't follow them.

The homepage links to 105 pages on nelsonlabs.com and 15 external pages.

We fetched 15 pages linked from your homepage (of 28 found) and read each the way a search engine does.

7 of 22 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

3 errors were logged to the browser console while the page loaded, for example “sWOTrackPage is not defined”.

Your homepage shows a street address but no LocalBusiness JSON-LD, so Google and AI assistants have to guess your address, hours and phone from the page text.

Social proof on the homepage: 1 testimonial or review block. Pairing it with named testimonials or customer logos makes it far more convincing.

The homepage shows no opening hours. If customers visit or call, show when.

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

There is no link to Google or Apple Maps. A directions link is one tap for a phone visitor.

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 527 words of visible text.

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

Opening the homepage sets 5 cookies (measured from a US location before any click).

Loading the homepage contacts 14 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.