romerlabs.com website review

14 files block the first paint until they finish downloading. Deferring or inlining them could save about 3.3 s.

15 files are served with short cache lifetimes, so returning visitors download them again (403 KiB).

A phone's processor spends 4.8 s on main-thread work while loading, 2.8 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

8 third-party services load with your homepage (Google Tag Manager, Google CDN and Hubspot and others), adding 1.8 MB and 1.6 s of main-thread time.

About 687 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 450 ms faster on a phone.

Your mobile performance score is 56. Pages that score under 90 lose visitors before the first paint.

3 images could be 740 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Google Tag Manager costs a phone 576 ms of main-thread work and 514 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.

Google CDN costs a phone 405 ms of main-thread work and 742 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 132 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.

15 long tasks block the main thread while loading, the longest for 317 ms. During a long task the page ignores taps.

Hubspot costs a phone 203 ms of main-thread work and 317 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.

12 KiB could be saved by minifying JavaScript.

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.

The page becomes fully interactive after 26.3 s. Good is under 3.8 s.

Scripts block taps and scrolling for 939 ms in total while the page loads. Good is under 200 ms.

The first text or image appears after 3.6 s on a phone. Good is under 1.8 s.

Visually, the page fills in at 6.7 s (Speed Index). Good is under 3.4 s.

Your largest element takes 3.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Webinar From Risk Management to Innovation: Lessons from 25…”.

Chrome's UX Report (opens in a new tab) has too little real-visitor traffic for this site, so the figures here are lab measurements from Google's test phone on a throttled 4G connection.

Your homepage downloads 5.9 MB in 299 requests on a phone: images 2.7 MB (25), scripts 2.2 MB (213) and fonts 439 KiB (6). Under 2 MB keeps phones on slow connections fast.

1 image is downloaded at several times the size a phone draws it, for example banner_gmowebinar2026.png at 1,888 px wide, shown at 390 px. Resized copies would save about 281 KiB.

By the Sustainable Web Design model, a visit to your homepage emits about 1.67 g of CO₂e: 200.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

3 elements have a tabindex above 0, which scrambles the keyboard order.

ARIA commands must have an accessible name: 1 element on the page fails this check, rated serious by axe-core.

<svg> elements with an img or image role must have alternative text: 1 element on the page fails this check, rated serious by axe-core.

6 form fields have no label, so screen readers announce an empty box and autofill guesses.

Structured data found (Organization, WebPage and WebSite) but with 2 problems, for example “WebSite: missing name”.

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

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

The homepage links to 61 pages on romerlabs.com and 5 external pages.

Your Organization JSON-LD is missing name, sameAs (social profiles) and description. These are the facts AI assistants use to describe a business and to tell it apart from others with a similar name.

There is no https://www.romerlabs.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.

Your homepage links to https://www.romerlabs.com/us_en/mycotoxin-test-kits, which answers with an error. Visitors hit a dead end and search engines drop it.

https://www.romerlabs.com/us_en/data-manager has no meta description, so Google writes the search snippet from whatever text it finds.

https://www.romerlabs.com/us_en/industries/food-beverage and https://www.romerlabs.com/us_en/industries/animal-feed took over 3 s to send their HTML from our server.

We fetched 15 pages linked from your homepage (of 48 found) and read each the way a search engine does.

2 images failed to load on a phone, for example https://www.romerlabs.com/us_en/elasticsuite/tracker/hit/image/h.png?page[store_id]=5&page[cms][identifier]=home&page[cms][title]=Romer%20Labs%20%7C%20Shop&page[type][identifier]=cms_index_index&page[.

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

Chrome logged issues while loading the page (“Content security policy”).

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.

A local customer looking to call finds no phone number on the homepage. Add one, ideally as a tap-to-call link.

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 328 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Hotjar and HubSpot and 3 mores (measured from a US location before any click). A consent tool (HubSpot cookie banner) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 16 cookies (measured from a US location before any click).

Loading the homepage contacts 34 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.