protolabs.com website review

4 files block the first paint until they finish downloading. Deferring or inlining them could save about 3.6 s.

About 552 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 2.7 s faster on a phone.

34 files are served with short cache lifetimes, so returning visitors download them again (367 KiB).

Your mobile performance score is 41 (desktop: 70). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

The page has 3,008 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

8 third-party services load with your homepage (Google Tag Manager, Wistia and Facebook and others), adding 1.5 MB and 1.3 s of main-thread time.

Google Tag Manager costs a phone 682 ms of main-thread work and 733 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 57 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 450 ms faster on a phone.

Wistia costs a phone 342 ms of main-thread work and 425 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.

10 KiB could be saved by minifying CSS.

A phone's processor spends 2.8 s on main-thread work while loading, 1.8 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

9 long tasks block the main thread while loading, the longest for 240 ms. During a long task the page ignores taps.

Polyfills for old browsers add 32 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

6 images could be 156 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

4 KiB could be saved by minifying JavaScript.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 100 ms).

Desktop scores 70 but mobile only 41. A gap that wide usually means heavy scripts and images that hit phones hardest.

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 first text or image appears after 9.1 s on a phone. Good is under 1.8 s.

Your largest element takes 18.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

The page becomes fully interactive after 18.7 s. Good is under 3.8 s.

Visually, the page fills in at 9.9 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 601 ms in total while the page loads. Good is under 200 ms.

For real visitors the layout shifts by 0.15 (75th percentile). Good is under 0.1.

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

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 113 ms to 129 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' largest content (lcp) went from 1.8 s to 1.8 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 2.4 MB in 97 requests on a phone: scripts 1.5 MB (34), fonts 415 KiB (3) and images 351 KiB (22). Under 2 MB keeps phones on slow connections fast.

2 images (143 KiB) are 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.

2 images further down the page (143 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 0.68 g of CO₂e: 81.1 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

<svg> elements with an img or image role must have alternative text: 5 elements on the page fail this check, rated serious 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 form field has no label, so screen readers announce an empty box and autofill guesses.

Headings should not be empty: 9 elements on the page fail this check, rated minor by axe-core.

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

No structured data (JSON-LD), so Google can't show rich results such as your logo, ratings or FAQs.

Your meta description is 176 characters; Google truncates after about 160, so the end of your pitch is cut.

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

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

The homepage links to 176 pages on protolabs.com and 18 external pages.

There is no Organization (or LocalBusiness) JSON-LD, so search engines and AI assistants have no machine-readable facts about who runs the site: its name, logo, profiles and contact details.

There is no https://www.protolabs.com/llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.

We fetched 15 pages linked from your homepage (of 103 found) and read each the way a search engine does.

1 image failed to load on a phone, for example https://bat.bing.com/action/0?ti=5105261&tm=gtm002&Ver=2&mid=162038ac-a7e9-452d-806d-f47515cc1a8f&bo=1&sid=f9f88a00d2fc11f1bbf83d5ab06fce1e&vid=f9f88310d2fc11f1a1ac2141f3169b6d&vids=1&msclkid=N&pi=918.

1 third-party cookie is set on load; browsers are restricting these, so whatever relies on them breaks.

Chrome logged issues while loading the page (“Cookie”).

No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

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.

Your longest form asks for 12 fields (11 required). Every extra field lowers completion.

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

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 1,642 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Hotjar and LinkedIn Insight and 3 mores (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 3 cookies (measured from a US location before any click).

Loading the homepage contacts 30 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.