fast.co website review

About 669 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 5.1 s faster on a phone.

14 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.1 s.

Your mobile performance score is 64. Pages that score under 90 lose visitors before the first paint.

4 third-party services load with your homepage (Google CDN, Other Google APIs/SDKs and cdn-cookieyes.com and others), adding 1.1 MB and 609 ms of main-thread time.

Google CDN costs a phone 566 ms of main-thread work and 1.1 MB 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 81 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 450 ms faster on a phone.

Polyfills for old browsers add 37 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 300 ms faster on a phone.

6 long tasks block the main thread while loading, the longest for 158 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.

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.

Real visitors wait 7.2 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors see the first content after 6.6 s (75th percentile). Good is under 1.8 s.

Real visitors wait 5.2 s for your server to start answering (75th percentile). Good is under 800 ms.

Your largest element takes 14.1 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “We use cookies to enhance your browsing experience, serve p…”.

The page becomes fully interactive after 14.5 s. Good is under 3.8 s.

Real visitors wait 328 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Visually, the page fills in at 4.6 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 336 ms in total while the page loads. Good is under 200 ms.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 304 ms to 286 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 5.3 s to 5.8 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 2.7 MB in 74 requests on a phone: scripts 1.3 MB (33), fonts 758 KiB (9) and other files 363 KiB (6). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 0.76 g of CO₂e: 91.1 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: 3 elements on the page fail this check, rated moderate by axe-core.

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

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

No meta description, so Google writes its own snippet from whatever text it finds.

Your title is only 28 characters: “Domain Inquiry | Markmonitor”. Between 30 and 65 characters leaves room to say what you do and for whom.

The homepage links to 28 pages on fast.co and 9 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.

/category/blog, /category/datasheet, /category/news, /category/report and /category/webinar have no meta description, so Google writes the search snippet from whatever text it finds.

We fetched 15 pages linked from your homepage (of 24 found) and read each the way a search engine does.

14 of 21 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

1 error was logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

No Content-Security-Policy header, the main browser-side defence against injected scripts.

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.

markmonitor.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 longest form asks for 13 fields (11 required). Every extra field lowers completion.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

The homepage has only about 91 words of visible text; thin pages give Google and first-time buyers little to go on.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

fast.co has no DMARC record, so nothing tells receivers what to do with mail that fails SPF or DKIM. Gmail and Yahoo require DMARC from bulk senders.

fast.co has no SPF record, so mail servers can't tell which servers may send email as you. Your mail lands in spam more often, and anyone can send mail pretending to be you.

We found no DKIM key on the selectors the big email providers use. If you send through one of them, turning on DKIM signing improves delivery.

fast.co has no MX record, so it receives no email. SPF -all and DMARC reject still matter: they stop others sending mail as you.

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.

Opening the homepage sets 2 cookies (measured from a US location before any click).

Loading the homepage contacts 10 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.