formswim.com website review

A phone's processor spends 4.3 s on main-thread work while loading, 2.0 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

Your mobile performance score is 66. Pages that score under 90 lose visitors before the first paint.

8 third-party services load with your homepage (Google Tag Manager, Klaviyo and rechargecdn.com and others), adding 963 KiB and 755 ms of main-thread time.

5 files block the first paint until they finish downloading. Deferring or inlining them could save about 800 ms.

About 474 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 150 ms faster on a phone.

10 long tasks block the main thread while loading, the longest for 279 ms. During a long task the page ignores taps.

Klaviyo costs a phone 196 ms of main-thread work and 318 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.

The page has 1,840 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

10 files are served with short cache lifetimes, so returning visitors download them again (39 KiB).

Polyfills for old browsers add 19 KiB JavaScript that modern phones do not need.

3 images could be 15 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 16.2 s. Good is under 3.8 s.

Your largest element takes 6.3 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 105 ms to 129 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors wait 831 ms for your server to start answering (75th percentile). Good is under 800 ms.

Visually, the page fills in at 5.3 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 282 ms in total while the page loads. Good is under 200 ms.

The first text or image appears after 2.1 s on a phone. Good is under 1.8 s.

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

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 1.9 s to 1.9 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 3.0 MB in 224 requests on a phone: scripts 1.1 MB (89), images 739 KiB (33) and other files 648 KiB (77). Under 2 MB keeps phones on slow connections fast.

Swim_System_Home_Mobile.png 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).

3 images further down the page (70 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 0.84 g of CO₂e: 100.9 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

7 images have no alt text, which hurts accessibility and image search.

All page content should be contained by landmarks: 3 elements on the page fail this check, rated moderate by axe-core.

Headings skip levels (h1 → h4, h2 → h4 and h2 → h4), which makes the page harder to scan with a screen reader.

Elements with visible text labels do not have matching accessible names. (5 elements).

The homepage links to 67 pages on formswim.com and 27 external pages.

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.

/pages/swim-system and /pages/compare-goggles use the same meta description. A description written for each page earns more clicks.

/pages/store-locator took over 3 s to send its HTML from our server.

We fetched 15 pages linked from your homepage (of 29 found) and read each the way a search engine does.

1 image is displayed at the wrong aspect ratio, so it looks stretched or squashed.

HSTS is set, but max-age is 91 days; one year is the recommended minimum.

No Referrer-Policy header, so full URLs can leak to the sites you link to.

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

X-XSS-Protection is set to “1; mode=block”; the header is deprecated and can introduce bugs. Use 0 or remove it.

There is no /.well-known/security.txt telling researchers how to report a security problem to you.

formswim.com's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.

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.

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.

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 560 words of visible text.

Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Klaviyo and Meta Pixel and 3 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 27 cookies, 1 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.