expander.pl website review

4 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.4 s.

A phone's processor spends 2.2 s on main-thread work while loading, 789 ms of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

The page has 2,116 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

About 142 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 180 ms faster on a phone.

2 third-party services load with your homepage (cookiebot.eu and Amazon Web Services), adding 198 KiB and 90 ms of main-thread time.

6 images could be 95 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

2 long tasks block the main thread while loading, the longest for 86 ms. During a long task the page ignores taps.

About 74 KiB of JavaScript is downloaded but never used on this page.

Polyfills for old browsers add 18 KiB JavaScript that modern phones do not need.

1 file is served with short cache lifetimes, so returning visitors download them again (8 KiB).

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.

4 KiB could be saved by minifying JavaScript.

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 978 ms for your server to start answering (75th percentile). Good is under 800 ms.

The page becomes fully interactive after 5.2 s. Good is under 3.8 s.

Your largest element takes 3.0 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Porównaj oferty kredytów lub wyszukaj nieruchomości Porówna…”.

Visually, the page fills in at 4.0 s (Speed Index). Good is under 3.4 s.

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 118 ms to 118 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' largest content (lcp) went from 1.4 s to 1.4 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

By the Sustainable Web Design model, a visit to your homepage emits about 0.31 g of CO₂e: 37.2 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

2 tap targets are too small or too close together to hit reliably with a finger.

Interactive controls must not be nested: 1 element on the page fails this check, rated serious by axe-core.

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

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

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

The homepage links to 195 pages on expander.pl and 13 external pages.

There is no Organization (or LocalBusiness) JSON-LD, so search engines and AI assistants have no machine-readable facts about who runs the site: its name, logo, profiles and contact details.

/kredyty, /kredyty/hipoteczne, /kredyty-gotowkowe, /kredyt-bez-wkladu-wlasnego-rkm, /nieruchomosci/dla-klienta and /nieruchomosci/dla-dewelopera and 7 others have no meta description, so Google writes the search snippet from whatever text it finds.

Your homepage links to 1 page by a URL that isn't its canonical one, for example /kredyty/hipoteczne, whose canonical is /porownywarka. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

We fetched 15 pages linked from your homepage (of 61 found) and read each the way a search engine does.

2 errors were logged to the browser console while the page loaded, for example “Failed to load resource: the server responded with a status of 403 ()”.

1 link from your homepage to your own site is broken, for example https://expander.pl/czym-roznia-sie-kredyty-hipoteczne-04-2022-sg/ (404).

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

HSTS is set, but max-age is 186 days; one year is the recommended minimum.

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.

expander.pl 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.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

We found no call-to-action buttons or links (such as “Book a demo” or “Get a quote”) anywhere on the homepage.

No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

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 794 words of visible text.

DMARC is set to p=none, so mail pretending to be expander.pl is still delivered. Reports are on, so moving to quarantine is the next step.

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 1 cookie (measured from a US location before any click).

Loading the homepage contacts 3 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.