vallen.com.mx website review

19 images could be 2.5 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 4.8 s faster on a phone.

About 956 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 5.2 s faster on a phone.

7 files block the first paint until they finish downloading. Deferring or inlining them could save about 2.9 s.

25 files are served with short cache lifetimes, so returning visitors download them again (436 KiB).

Your mobile performance score is 25 (desktop: 44). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

8 third-party services load with your homepage (Google Tag Manager, YouTube and Facebook and others), adding 1.9 MB and 1.1 s of main-thread time.

About 157 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.

YouTube costs a phone 366 ms of main-thread work and 967 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.

Google Tag Manager costs a phone 409 ms of main-thread work and 532 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.

A phone's processor spends 2.4 s on main-thread work while loading, 1.4 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

Polyfills for old browsers add 24 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 200 ms faster on a phone.

12 long tasks block the main thread while loading, the longest for 161 ms. During a long task the page ignores taps.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 50 ms).

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

3 KiB could be saved by minifying CSS.

3 KiB could be saved by minifying JavaScript.

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.

For real visitors the layout shifts by 0.39 (75th percentile). Good is under 0.1.

The first text or image appears after 10.4 s on a phone. Good is under 1.8 s.

Your largest element takes 29.1 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

The page becomes fully interactive after 29.5 s. Good is under 3.8 s.

Visually, the page fills in at 12.0 s (Speed Index). Good is under 3.4 s.

The layout shifts by 0.502 while loading, so content jumps under the reader's thumb. Good is under 0.1.

Real visitors wait 2.6 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Scripts block taps and scrolling for 410 ms in total while the page loads. Good is under 200 ms.

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

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 160 ms to 175 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' largest content (lcp) went from 1.4 s to 1.7 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 5.8 MB in 138 requests on a phone: images 3.2 MB (42), scripts 2.0 MB (47) and fonts 280 KiB (8). Under 2 MB keeps phones on slow connections fast.

B2C_Web_Com_1440x555.png weighs 621 KiB. On a phone connection a single image that size takes seconds.

12 images (2.1 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.

6 images are downloaded at several times the size a phone draws them, for example B2C_Web_Com_1440x555.png at 1,440 px wide, shown at 390 px. Resized copies would save about 453 KiB.

7 images further down the page (558 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 1.63 g of CO₂e: 195.7 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

ARIA dialog and alertdialog nodes should have an accessible name: 2 elements on the page fail this check, rated serious by axe-core.

1 frame has no title, so screen-reader users cannot tell what it contains.

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

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

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

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 canonical URL, so duplicate versions of the homepage (with or without www, with tracking parameters) can split ranking signals.

Your meta description is 162 characters; Google truncates after about 160, so the end of your pitch is cut.

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

No XML sitemap at https://www.vallen.com.mx/sitemap.xml, so Google discovers your pages only by following links.

1 link has no real href, so search engines can't follow it.

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

The homepage links to 155 pages on vallen.com.mx and 7 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.

We fetched 15 pages linked from your homepage (of 89 found) and read each the way a search engine does.

On a 390 px-wide phone the page scrolls sideways, a sign that something is wider than the screen.

8 of 34 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

5 third-party cookies are set on load; browsers are restricting these, so whatever relies on them breaks.

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

Chrome logged issues while loading the page (“Cookie”).

No Strict-Transport-Security header, so browsers may still try plain http first on a return visit.

No Referrer-Policy header, so full URLs can leak to the sites you link to.

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

There is no /.well-known/security.txt telling researchers how to report a security problem to you.

vallen.com.mx 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.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

The homepage has only about 168 words of visible text; thin pages give Google and first-time buyers little to go on.

Your phone number appears as text but isn't a tel: link, so phone visitors can't tap to call.

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

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, Google Analytics, Google Tag Manager, LinkedIn Insight and Meta Pixel 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 29 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 35 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.