ubook.com website review

The page goes through 1 redirect before it starts loading, costing about 8.9 s. Link and advertise the final URL directly.

About 406 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.9 s faster on a phone.

Your mobile performance score is 57 (desktop: 76). Pages that score under 90 lose visitors before the first paint.

1 long task block the main thread while loading, the longest for 82 ms. During a long task the page ignores taps.

5 third-party services load with your homepage (Google Analytics, Facebook and Cloudflare and others), adding 281 KiB and 19 ms of main-thread time.

Your largest element takes 17.9 s to render on a phone. Google's threshold for “good” is 2.5 s.

The page becomes fully interactive after 17.9 s. Good is under 3.8 s.

The first text or image appears after 5.9 s on a phone. Good is under 1.8 s.

Visually, the page fills in at 8.1 s (Speed Index). Good is under 3.4 s.

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

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' tap response (inp) went from 178 ms to 194 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' largest content (lcp) went from 1.8 s to 1.9 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 2.6 MB in 76 requests on a phone: images 1.5 MB (21), scripts 889 KiB (28) and fonts 140 KiB (6). Under 2 MB keeps phones on slow connections fast.

1 image (116 KiB) is 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.

By the Sustainable Web Design model, a visit to your homepage emits about 0.73 g of CO₂e: 88.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 button has no accessible name, so screen readers announce just “button”.

Images must have alternative text: 1 element on the page fails this check, rated critical by axe-core.

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

All page content should be contained by landmarks: 18 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.

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.

Headings skip levels (h2 → h5), which makes the page harder to scan with a screen reader.

Your title is 88 characters, so Google will cut it off around 60: “Ubook oferece milhares de audiolivros, ebooks, revistas em áudio, podcasts e muito mais.”.

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

Your meta description is 211 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 13 pages on ubook.com and 2 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.

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.

Your homepage links to 4 pages by a URL that isn't their canonical one, for example /privacidade, whose canonical is /privacidade/index. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

/home, /subscription and /get have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 5 pages linked from your homepage and read each the way a search engine does.

1 error was logged to the browser console while the page loaded, for example “Failed to load resource: the server responded with a status of 404 ()”.

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: 1 trust badge. Pairing it with named testimonials or customer logos makes it far more convincing.

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 248 words of visible text; thin pages give Google and first-time buyers little to go on.

There is no form on the homepage, so every lead has to click through to another page first.

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

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Meta Pixel and Microsoft Clarity and 1 more (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 16 cookies, 1 of them by other companies (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 26 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.