sanfer.com.mx website review

7 images could be 1.7 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 6.0 s faster on a phone.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 1.1 s).

Your mobile performance score is 74 (desktop: 64). Pages that score under 90 lose visitors before the first paint.

7 files block the first paint until they finish downloading. Deferring or inlining them could save about 250 ms.

2 third-party services load with your homepage (Google Analytics and b-cdn.net), adding 26 KiB and 27 ms of main-thread time.

1 file is served with short cache lifetimes, so returning visitors download them again (16 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.

Your largest element takes 14.2 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “67abf1da11350”.

The page becomes fully interactive after 14.2 s. Good is under 3.8 s.

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' largest content (lcp) went from 1.5 s to 2.1 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

16 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 78 ms to 79 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

67abf1da11350.webp weighs 1.2 MB. On a phone connection a single image that size takes seconds.

Your homepage downloads 3.7 MB in 34 requests on a phone: images 2.0 MB (18), fonts 1.6 MB (3) and scripts 28 KiB (5). Under 2 MB keeps phones on slow connections fast.

3 images (602 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.

4 images further down the page (440 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

1 image is downloaded at several times the size a phone draws it, for example 64de2c8cb16c3.webp at 1,172 px wide, shown at 316 px. Resized copies would save about 28 KiB.

By the Sustainable Web Design model, a visit to your homepage emits about 1.04 g of CO₂e: 125.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

36 elements have a tabindex above 0, which scrambles the keyboard order.

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

Headings skip levels (h3 → h5, h3 → h5 and h3 → h5), which makes the page harder to scan with a screen reader.

Your title is only 15 characters: “Inicio | Sanfer”. 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 243 characters; Google truncates after about 160, so the end of your pitch is cut.

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

The homepage links to 8 pages on sanfer.com.mx and 12 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://sanfer.com.mx/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://sanfer.com.mx/legales/aviso-de-privacidad and https://sanfer.com.mx/page/site-map have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 3 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 (Not Found)”.

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 phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

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.

The homepage carries about 349 words of visible text.

Before a visitor clicks anything, the page loads 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 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 2 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.