ansp.org website review

About 1,009 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 5.8 s faster on a phone.

14 images could be 2.3 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 4.3 s faster on a phone.

22 files are served with short cache lifetimes, so returning visitors download them again (890 KiB).

Google Tag Manager costs a phone 1.8 s of main-thread work and 1.3 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 39 (desktop: 38). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

A phone's processor spends 5.5 s on main-thread work while loading, 3.2 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

8 third-party services load with your homepage (Google Tag Manager, Facebook and reddit and others), adding 2.0 MB and 2.9 s of main-thread time.

About 58 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 750 ms faster on a phone.

1 file blocks the first paint until they finish downloading. Deferring or inlining it could save about 450 ms.

125 KiB could be saved by minifying JavaScript.

Facebook costs a phone 377 ms of main-thread work and 335 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.

19 long tasks block the main thread while loading, the longest for 330 ms. During a long task the page ignores taps.

reddit costs a phone 306 ms of main-thread work and 27 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.

Polyfills for old browsers add 48 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 200 ms faster on a phone.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 200 ms).

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 32.0 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Three different shell specimens on display at the Academy o…”.

The page becomes fully interactive after 34.7 s. Good is under 3.8 s.

Visually, the page fills in at 11.9 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 1.3 s in total while the page loads. Good is under 200 ms.

Real visitors wait 3.6 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' tap response (inp) went from 146 ms to 197 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' largest content (lcp) went from 1.7 s to 2.5 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors wait 1.0 s for your server to start answering (75th percentile). Good is under 800 ms.

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

The first text or image appears after 2.0 s on a phone. Good is under 1.8 s.

Your homepage downloads 5.6 MB in 145 requests on a phone: images 2.7 MB (25), scripts 2.5 MB (37) and HTML 117 KiB (15). Under 2 MB keeps phones on slow connections fast.

13 images (1,011 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.

11 images further down the page (635 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

1 image is downloaded at several times the size a phone draws it, for example malacology-01_16x9.jpg at 1,600 px wide, shown at 390 px. Resized copies would save about 85 KiB.

By the Sustainable Web Design model, a visit to your homepage emits about 1.58 g of CO₂e: 189.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

2 elements hidden from screen readers can still receive keyboard focus.

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

The page has no <main> landmark, so screen-reader users cannot jump straight to the content.

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

1 form field has no label, so screen readers announce an empty box and autofill guesses.

Headings should not be empty: 2 elements on the page fail this check, rated minor by axe-core.

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

There are 3 <h1> headlines (“Search the Site”, “Primary Menu” and “”). One clear main headline is easier for people and search engines.

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

The homepage links to 80 pages on ansp.org and 13 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://ansp.org/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 35 found) and read each the way a search engine does.

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

4 errors were logged to the browser console while the page loaded, for example “c is not a function”.

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

Large scripts ship without source maps.

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

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.

Social proof on the homepage: 1 customer or partner logo. 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.

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

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 632 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Hotjar and Meta Pixel and 5 mores (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 24 cookies, 2 of them by other companies (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 36 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.