cel.eng.br website review

62 files block the first paint until they finish downloading. Deferring or inlining them could save about 6.2 s.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 2.5 s).

About 209 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.2 s faster on a phone.

Your mobile performance score is 33 (desktop: 87). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

7 images could be 436 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 450 ms faster on a phone.

About 113 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 610 ms faster on a phone.

20 KiB could be saved by minifying CSS.

Polyfills for old browsers add 24 KiB JavaScript that modern phones do not need.

Desktop scores 87 but mobile only 33. A gap that wide usually means heavy scripts and images that hit phones hardest.

8 KiB could be saved by minifying JavaScript.

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

1 third-party service load with your homepage (Google Fonts), adding 46 KiB and 0 ms of main-thread time.

Your largest element takes 13.4 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Um novo caminho Oferecendo energia para a vida”.

Visually, the page fills in at 15.6 s (Speed Index). Good is under 3.4 s.

The layout shifts by 1.044 while loading, so content jumps under the reader's thumb. Good is under 0.1.

The page becomes fully interactive after 13.7 s. Good is under 3.8 s.

The first text or image appears after 4.1 s on a phone. Good is under 1.8 s.

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

Chrome's UX Report (opens in a new tab) has too little real-visitor traffic for this site, so the figures here are lab measurements from Google's test phone on a throttled 4G connection.

Your homepage downloads 2.8 MB in 131 requests on a phone: images 1.9 MB (13), scripts 536 KiB (69) and stylesheets 209 KiB (42). Under 2 MB keeps phones on slow connections fast.

6 images (885 KiB) 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.

2 images further down the page (224 KiB) 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 0.79 g of CO₂e: 95.3 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

All page content should be contained by landmarks: 2 elements on the page fail this check, rated moderate by axe-core.

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

7 visible links have no text or label, so screen readers cannot say where they go.

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

Headings skip levels (h2 → h4 and h2 → 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.

There is no <h1>, so neither visitors nor Google get a clear main headline.

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

No Open Graph image (also missing: og:title, og:description), so links shared on LinkedIn, Slack or Facebook show no preview picture.

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

No twitter:card tag. X falls back to Open Graph, which is incomplete here.

The homepage links to 37 pages on cel.eng.br and 0 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 https://www.cel.eng.br/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.

https://www.cel.eng.br/contato, https://www.cel.eng.br/en/cel-page-ingles, https://www.cel.eng.br/portfolio-item/instalacoes, https://www.cel.eng.br/portfolio-item/subestacoes, https://www.cel.eng.br/portfolio-item/cos-centro-de-operacao-de-sistema-eletrico and https://www.cel.eng.br/portfolio-item/servicos-concessionaria and 4 others have no meta description, so Google writes the search snippet from whatever text it finds.

https://www.cel.eng.br/en/cel-page-ingles has no <h1> headline, so visitors and search engines get no clear main topic.

https://www.cel.eng.br/contato, https://www.cel.eng.br/en/cel-page-ingles, https://www.cel.eng.br/portfolio-item/instalacoes, https://www.cel.eng.br/portfolio-item/subestacoes, https://www.cel.eng.br/portfolio-item/cos-centro-de-operacao-de-sistema-eletrico and https://www.cel.eng.br/portfolio-item/servicos-concessionaria took over 3 s to send their HTML from our server.

We fetched 10 pages linked from your homepage and read each the way a search engine does.

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: 3 testimonial or review blocks. Pairing it with named testimonials or customer logos makes it far more convincing.

No analytics or tag manager detected in the HTML, so you can't measure whether any of these fixes work.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach 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 395 words of visible text.

The page uses urgency cues (a countdown or limited-time wording).

Opening the homepage sets 2 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 2 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.