collectius.com website review

Google Tag Manager costs a phone 344 ms of main-thread work and 298 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.

6 long tasks block the main thread while loading, the longest for 257 ms. During a long task the page ignores taps.

3 third-party services load with your homepage (Google Tag Manager, Azure Web Services and Google Analytics), adding 302 KiB and 345 ms of main-thread time.

About 181 KiB of JavaScript is downloaded but never used on this page.

About 70 KiB of CSS is downloaded but never applied on this page.

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.

3 files are served with short cache lifetimes, so returning visitors download them again (4 KiB).

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.

Real visitors wait 1.1 s for your server to start answering (75th percentile). Good is under 800 ms.

The page becomes fully interactive after 5.9 s. Good is under 3.8 s.

Visually, the page fills in at 4.0 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 258 ms in total while the page loads. Good is under 200 ms.

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 139 ms to 167 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 1.5 s to 1.7 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

about-us-illustration.webp is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

By the Sustainable Web Design model, a visit to your homepage emits about 0.42 g of CO₂e: 50.9 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

6 tap targets are too small or too close together to hit reliably with a finger.

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

ARIA dialog and alertdialog nodes should have an accessible name: 1 element on the page fails this check, rated serious by axe-core.

All page content should be contained by landmarks: 19 elements on the page fail this check, rated moderate by axe-core.

The <html> element has no lang attribute, so screen readers may read the page in the wrong voice and accent.

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

Your page has no <title>, so Google has to invent the blue link in search results.

No meta description, so Google writes its own snippet from whatever text it finds.

There is no <h1>, so neither visitors nor Google get a clear main headline.

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

No canonical URL, so duplicate versions of the homepage (with or without www, with tracking parameters) can split ranking signals.

No Open Graph image (also missing: og:title, og:description), so links shared on LinkedIn, Slack or Facebook show no preview picture.

There is no robots.txt at collectius.com/robots.txt, the first file search crawlers ask for.

The homepage links to only 1 page on your own site, so visitors and crawlers find few routes into the rest of it.

1 link has no real href, so search engines can't follow it.

No twitter:card tag. X falls back to Open Graph, which is incomplete here.

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 /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.

/contact-us has no meta description, so Google writes the search snippet from whatever text it finds.

/contact-us has under 150 words in the HTML. Thin pages rarely rank; if the text loads with JavaScript, crawlers that don't run it see even less.

We fetched 1 page linked from your homepage and read each the way a search engine does.

2 errors were logged to the browser console while the page loaded, for example “Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use …”.

Social proof on the homepage: “7m+ Satisfied Customers”. Pairing it with named testimonials or customer logos makes it far more convincing.

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

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 398 words of visible text.

Before a visitor clicks anything, the page loads Google Analytics and Google Tag Manager (measured from a US location before any click). No consent tool was detected. Visitors from the EU, UK and several US states must be asked first.

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

No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.

Loading the homepage contacts 3 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.