longi.com website review

1 image could be 625 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 1.6 s faster on a phone.

Your mobile performance score is 48. Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

About 180 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 900 ms faster on a phone.

3 long tasks block the main thread while loading, the longest for 944 ms. During a long task the page ignores taps.

8 files are served with short cache lifetimes, so returning visitors download them again (46 KiB).

A phone's processor spends 3.2 s on main-thread work while loading, 2.1 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

Polyfills for old browsers add 23 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

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

Your largest element takes 7.4 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Activity image”.

Scripts block taps and scrolling for 1.3 s in total while the page loads. Good is under 200 ms.

The page becomes fully interactive after 7.4 s. Good is under 3.8 s.

Real visitors wait 1.2 s for your server to start answering (75th percentile). Good is under 800 ms.

Visually, the page fills in at 4.9 s (Speed Index). Good is under 3.4 s.

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

Untitled_Design_55_454db4bcac.png weighs 686 KiB. On a phone connection a single image that size takes seconds.

1 image (686 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 0.33 g of CO₂e: 39.1 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

ARIA tab nodes must have an accessible name: 3 elements on the page fail this check, rated serious by axe-core.

All page content should be contained by landmarks: 24 elements on the page fail this check, rated moderate by axe-core.

Document should not have more than one contentinfo landmark: 1 element on the page fails this check, rated moderate by axe-core.

The page has no <main> landmark, so screen-reader users cannot jump straight to the content.

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 1 element on the page fails this check, rated moderate by axe-core.

Page should contain a level-one heading: 1 element on the page fails this check, rated moderate by axe-core.

Headings should not be empty: 1 element on the page fails this check, rated minor by axe-core.

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.

20 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.

The homepage links to 118 pages on longi.com and 8 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.longi.com/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.longi.com/us/products/modules, https://www.longi.com/us/products/modules/hi-mo-5-monofacial and https://www.longi.com/us/products/modules/hi-mo-5-bifacial have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 78 found) and read each the way a search engine does.

Large scripts ship without source maps.

Social proof on the homepage: 2 trust badges. 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.

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 516 words of visible text.

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.