centercode.com website review

A phone's processor spends 4.5 s on main-thread work while loading, 2.5 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

8 third-party services load with your homepage (hsappstatic.net, Google CDN and Google Tag Manager and others), adding 2.6 MB and 1.7 s of main-thread time.

About 1.1 MB of JavaScript is downloaded but never used on this page.

Your mobile performance score is 52 (desktop: 90). Pages that score under 90 lose visitors before the first paint.

hsappstatic.net costs a phone 610 ms of main-thread work and 783 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 400 ms of main-thread work and 740 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.

2 files block the first paint until they finish downloading. Deferring or inlining them could save about 450 ms.

37 files are served with short cache lifetimes, so returning visitors download them again (390 KiB).

16 long tasks block the main thread while loading, the longest for 354 ms. During a long task the page ignores taps.

Hubspot costs a phone 243 ms of main-thread work and 361 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.

website-files.com costs a phone 81 ms of main-thread work and 445 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 170 KiB of CSS is downloaded but never applied on this page.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 150 ms).

Polyfills for old browsers add 23 KiB JavaScript that modern phones do not need.

Desktop scores 90 but mobile only 52. A gap that wide usually means heavy scripts and images that hit phones hardest.

9 KiB could be saved by minifying CSS.

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 20.8 s. Good is under 3.8 s.

Scripts block taps and scrolling for 989 ms in total while the page loads. Good is under 200 ms.

For real visitors the layout shifts by 0.24 (75th percentile). Good is under 0.1.

Visually, the page fills in at 5.5 s (Speed Index). Good is under 3.4 s.

Your largest element takes 3.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Trusted by the World's Top-Performing Companies”.

The layout shifts by 0.196 while loading, so content jumps under the reader's thumb. Good is under 0.1.

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

The first text or image appears after 2.3 s on a phone. Good is under 1.8 s.

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' tap response (inp) went from 111 ms to 108 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 3.5 MB in 152 requests on a phone: scripts 2.4 MB (59), other files 403 KiB (26) and fonts 289 KiB (8). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 0.99 g of CO₂e: 119.3 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 dropdown has no label.

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

<html> element must have a lang attribute: 1 element on the page fails this check, rated serious by axe-core.

All page content should be contained by landmarks: 33 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.

2 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.

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

Your meta description is 164 characters; Google truncates after about 160, so the end of your pitch is cut.

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

The homepage links to 135 pages on centercode.com and 31 external pages.

/services/managed-testing, /services/centercode-admin and /demo are marked noindex but linked from your homepage. If they are meant to be found, remove the noindex.

We fetched 15 pages linked from your homepage (of 59 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.

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

Large scripts ship without source maps.

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

X-Content-Type-Options: nosniff is missing, so browsers may guess file types.

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.

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

centercode.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.

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.

Social proof on the homepage: 4 trust badges. Pairing it with named testimonials or customer logos makes it far more convincing.

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 432 words of visible text.

Your SPF record doesn't end in -all or ~all, so it doesn't stop other servers sending as you: “v=spf1 redirect=_cspf.centercode.com”.

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, HubSpot and LinkedIn Insight (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 10 cookies (measured from a US location before any click).

Loading the homepage contacts 44 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.