surmodics.com website review

7 files block the first paint until they finish downloading. Deferring or inlining them could save about 2.7 s.

Google CDN costs a phone 1.3 s of main-thread work and 1.9 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: 64). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

A phone's processor spends 5.9 s on main-thread work while loading, 3.6 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

8 third-party services load with your homepage (Google CDN, website-files.com and Google Tag Manager and others), adding 3.7 MB and 2.2 s of main-thread time.

About 1.9 MB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 600 ms faster on a phone.

website-files.com costs a phone 498 ms of main-thread work and 874 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.

20 long tasks block the main thread while loading, the longest for 400 ms. During a long task the page ignores taps.

Google Tag Manager costs a phone 199 ms of main-thread work and 494 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 Fonts costs a phone 0 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.

About 40 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 150 ms faster on a phone.

7 images could be 67 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

4 files are served with short cache lifetimes, so returning visitors download them again (12 KiB).

Desktop scores 64 but mobile only 39. 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.

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 27.5 s. Good is under 3.8 s.

Your largest element takes 7.1 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “One Surmodics. One Team. Proven Performance. Performance Co…”.

Scripts block taps and scrolling for 1.5 s in total while the page loads. Good is under 200 ms.

The first text or image appears after 3.5 s on a phone. Good is under 1.8 s.

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' largest content (lcp) went from 1.2 s to 2.1 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors see the first content after 1.9 s (75th percentile). Good is under 1.8 s.

Visually, the page fills in at 5.1 s (Speed Index). Good is under 3.4 s.

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

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' tap response (inp) went from 74 ms to 71 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 5.1 MB in 91 requests on a phone: scripts 3.4 MB (25), other files 726 KiB (24) and images 433 KiB (16). Under 2 MB keeps phones on slow connections fast.

6a44665c8776f4a00925767f_Surmodics_Logo_Diamond_Hrz_trimmed_ 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 1.45 g of CO₂e: 173.6 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

Links must have discernible text: 1 element on the page fails this check, rated serious by axe-core.

All page content should be contained by landmarks: 14 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.

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

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

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

1 link use generic text like “click here” or “learn more”, which tells Google nothing about the page behind it.

The homepage links to 37 pages on surmodics.com and 1 external page.

Your homepage links to https://www.surmodics.com/about-us, which answers with an error. Visitors hit a dead end and search engines drop it.

We fetched 15 pages linked from your homepage (of 17 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.

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.

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 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 702 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager and LinkedIn Insight (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 6 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 15 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.