fullstack.com website review

About 531 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 2.9 s faster on a phone.

About 109 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 1.4 s faster on a phone.

24 files are served with short cache lifetimes, so returning visitors download them again (242 KiB).

Your mobile performance score is 57. Pages that score under 90 lose visitors before the first paint.

8 third-party services load with your homepage (Google Tag Manager, website-files.com and Hubspot and others), adding 1.8 MB and 667 ms of main-thread time.

1 file blocks the first paint until they finish downloading. Deferring or inlining it could save about 600 ms.

Google Tag Manager costs a phone 240 ms of main-thread work and 535 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 198 ms of main-thread work and 922 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 1,995 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Polyfills for old browsers add 33 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

7 long tasks block the main thread while loading, the longest for 100 ms. During a long task the page ignores taps.

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

The first text or image appears after 6.6 s on a phone. Good is under 1.8 s.

The page becomes fully interactive after 15.2 s. Good is under 3.8 s.

Visually, the page fills in at 8.0 s (Speed Index). Good is under 3.4 s.

Real visitors wait 2.8 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors wait 236 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 129 ms to 231 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 2.6 s to 3.1 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors see the first content after 2.6 s (75th percentile). Good is under 1.8 s.

By the Sustainable Web Design model, a visit to your homepage emits about 0.56 g of CO₂e: 67.7 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

All page content should be contained by landmarks: 1 element on the page fails this check, rated moderate by axe-core.

Elements with visible text labels do not have matching accessible names. (7 elements).

2 links have no real href, so search engines can't follow them.

The homepage links to 88 pages on fullstack.com and 1 external page.

We fetched 15 pages linked from your homepage (of 41 found) and read each the way a search engine does.

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.

fullstack.com has no CAA record, so any certificate authority may issue a certificate for it. A CAA record naming your provider (for example letsencrypt.org) closes that door.

fullstack.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 phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

The homepage carries about 747 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 Tag Manager, HubSpot, LinkedIn Insight and Microsoft Clarity (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 11 cookies (measured from a US location before any click).

Loading the homepage contacts 37 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.