okbase.cz website review

40 files are served with short cache lifetimes, so returning visitors download them again (776 KiB).

About 221 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.4 s faster on a phone.

10 images could be 2.1 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 750 ms faster on a phone.

Your mobile performance score is 73. Pages that score under 90 lose visitors before the first paint.

5 third-party services load with your homepage (Google Tag Manager, seznam.cz and Bing Ads and others), adding 2.6 MB and 374 ms of main-thread time.

Google Tag Manager costs a phone 269 ms of main-thread work and 341 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.

oksystem.com costs a phone 12 ms of main-thread work and 2.2 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.

32 KiB JavaScript is shipped twice across bundles. Google estimates it would make the page about 150 ms faster on a phone.

About 16 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.

5 long tasks block the main thread while loading, the longest for 133 ms. During a long task the page ignores taps.

Polyfills for old browsers add 8 KiB JavaScript that modern phones do not need.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

Your largest element takes 8.8 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “HR budoucnosti Jeden systém pro mzdy, personalistiku a doch…”.

The page becomes fully interactive after 10.9 s. Good is under 3.8 s.

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' tap response (inp) went from 153 ms to 194 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

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

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 2026-11-07, real Chrome visitors' largest content (lcp) went from 1.4 s to 1.6 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

AdobeStock_333573938 (1).jpg weighs 1.6 MB. On a phone connection a single image that size takes seconds.

3 images are downloaded at several times the size a phone draws them, for example AdobeStock_333573938 (1).jpg at 9,504 px wide, shown at 306 px. Resized copies would save about 1.8 MB.

Your homepage downloads 3.2 MB in 58 requests on a phone: images 2.5 MB (39), scripts 515 KiB (8) and fonts 93 KiB (4). Under 2 MB keeps phones on slow connections fast.

4 images (2.2 MB) are JPEG, PNG or GIF. The same pictures as WebP or AVIF are usually much smaller at the same quality, and every current browser shows them.

3 images further down the page (2.0 MB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 0.90 g of CO₂e: 108.2 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

18 images have no alt text, which hurts accessibility and image search.

All page content should be contained by landmarks: 32 elements on the page fail this check, rated moderate by axe-core.

Document should not have more than one contentinfo landmark: 1 element on the page fails this check, rated moderate by axe-core.

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 1 element on the page fails this check, rated moderate by axe-core.

The viewport tag blocks pinch-zoom, which low-vision visitors rely on.

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

Your title is only 23 characters: “OKbase - HR budoucnosti”. Between 30 and 65 characters leaves room to say what you do and for whom.

No structured data (JSON-LD), so Google can't show rich results such as your logo, ratings or FAQs.

Your meta description is 226 characters; Google truncates after about 160, so the end of your pitch is cut.

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

No twitter:card tag. X falls back to Open Graph, which is set, so this is minor.

The homepage links to 89 pages on okbase.cz and 17 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.

https://www.okbase.cz/cs/zivot-s-okbase, https://www.okbase.cz/cs/caste-dotazy, https://www.okbase.cz/cs/aktuality and https://www.okbase.cz/cs/tipy-a-navody took over 3 s to send their HTML from our server.

We fetched 15 pages linked from your homepage (of 39 found) and read each the way a search engine does.

1 image failed to load on a phone, for example https://bat.bing.com/action/0?ti=343182547&tm=gtm002&Ver=2&mid=25c9acba-36a8-4cb9-bc3f-947036df9c14&bo=1&sid=a663e320dca711f1bbd6693f461ce42e&vid=a663f3d0dca711f1b232619cf7cc878f&vids=1&msclkid=N&pi=9.

1 error was logged to the browser console while the page loaded, for example “Unrecognized Content-Security-Policy directive 'frame-ancestor'.”.

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

1 image is served at too low a resolution for sharp phone screens.

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.

Social proof on the homepage: 5 customer or partner logos. Pairing it with named testimonials or customer logos makes it far more convincing.

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 655 words of visible text.

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