colcci.com website review

3 images could be 1.5 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 1.1 s faster on a phone.

8 third-party services load with your homepage (cloudfront.net, RD Station and Google Analytics and others), adding 2.1 MB and 276 ms of main-thread time.

24 files are served with short cache lifetimes, so returning visitors download them again (295 KiB).

cloudfront.net costs a phone 164 ms of main-thread work and 1.9 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 127 KiB of JavaScript is downloaded but never used on this page.

About 22 KiB of CSS is downloaded but never applied on this page.

11 KiB could be saved by minifying JavaScript.

Polyfills for old browsers add 6 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.

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 3.1 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors wait 307 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 215 ms to 297 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors see the first content after 2.4 s (75th percentile). Good is under 1.8 s.

Real visitors wait 1.5 s for your server to start answering (75th percentile). Good is under 800 ms.

Your largest element takes 3.3 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

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

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 2.1 s to 2.5 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

1560_banner639289650314277882.webp weighs 1.2 MB. On a phone connection a single image that size takes seconds.

Your homepage downloads 2.2 MB in 40 requests on a phone: images 1.6 MB (8), scripts 369 KiB (17) and fonts 125 KiB (4). Under 2 MB keeps phones on slow connections fast.

1560_banner639289650314277882.webp is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

1 image is downloaded at several times the size a phone draws it, for example grupo-vip-Colcci.png at 600 px wide, shown at 80 px. Resized copies would save about 50 KiB.

1 image (60 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 0.62 g of CO₂e: 74.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

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

All page content should be contained by landmarks: 22 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.

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

Alternative text of images should not be repeated as text: 5 elements on the page fail this check, rated minor by axe-core.

Headings skip levels (h1 → h3), which makes the page harder to scan with a screen reader.

Structured data found (ClothingStore, Organization and VideoObject) but with 1 problem, for example “VideoObject: contentUrl is not an absolute URL ("https://d22bdoztbv0mbd.cloudfront.net/Custom/Conte…”.

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

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

The homepage links to 58 pages on colcci.com and 12 external pages.

We fetched 15 pages linked from your homepage (of 22 found) and read each the way a search engine does.

1 link from your homepage to your own site is broken, for example https://www.colcci.com.br/conteudo/politica-de-privacidade (404).

X-Content-Type-Options: nosniff is missing, so browsers may guess file types.

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.

colcci.com.br 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.

colcci.com.br'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.

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 trust badges. Pairing it with named testimonials or customer logos makes it far more convincing.

The homepage has only about 120 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.

colcci.com 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.

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.

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.

Before a visitor clicks anything, the page loads Google Ads and Google Analytics (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 8 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 12 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.