upsinverter.com website review

194 files are served with short cache lifetimes, so returning visitors download them again (11.6 MB).

17 images could be 3.6 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 15.8 s faster on a phone.

52 files block the first paint until they finish downloading. Deferring or inlining them could save about 6.1 s.

About 1.0 MB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 4.3 s faster on a phone.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 2.0 s).

About 217 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 1.1 s faster on a phone.

Your mobile performance score is 10 (desktop: 37). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

A phone's processor spends 5.8 s on main-thread work while loading, 2.0 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

The page has 3,049 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

8 third-party services load with your homepage (Google Tag Manager, Facebook and Google Maps and others), adding 1.8 MB and 1.3 s of main-thread time.

Google Tag Manager costs a phone 859 ms of main-thread work and 1.1 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.

18 long tasks block the main thread while loading, the longest for 578 ms. During a long task the page ignores taps.

Facebook costs a phone 332 ms of main-thread work and 256 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.

16 KiB could be saved by minifying CSS.

Polyfills for old browsers add 67 KiB JavaScript that modern phones do not need.

Desktop scores 37 but mobile only 10. A gap that wide usually means heavy scripts and images that hit phones hardest.

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

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

For real visitors the layout shifts by 0.53 (75th percentile). Good is under 0.1.

Real visitors see the first content after 3.1 s (75th percentile). Good is under 1.8 s.

Real visitors wait 1.9 s for your server to start answering (75th percentile). Good is under 800 ms.

Your largest element takes 54.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “1kw dadri innaguration”.

The page becomes fully interactive after 56.3 s. Good is under 3.8 s.

Visually, the page fills in at 14.0 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 5.1 s on a phone. Good is under 1.8 s.

Scripts block taps and scrolling for 1.7 s in total while the page loads. Good is under 200 ms.

The layout shifts by 0.42 while loading, so content jumps under the reader's thumb. Good is under 0.1.

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 203 ms to 275 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

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

Your homepage downloads 13.1 MB in 233 requests on a phone: images 10.1 MB (98), scripts 2.1 MB (69) and fonts 599 KiB (13). Under 2 MB keeps phones on slow connections fast.

2 images weigh 1.3 MB together. On a phone connection a single image that size takes seconds.

14 images are downloaded at several times the size a phone draws them, for example certificate1.png at 1,278 px wide, shown at 290 px. Resized copies would save about 1.4 MB.

40 images (8.0 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.

10 images further down the page (2.2 MB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

1kw-dadri-innaguration.jpeg 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).

By the Sustainable Web Design model, a visit to your homepage emits about 3.72 g of CO₂e: 446.1 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 button has no accessible name, so screen readers announce just “button”.

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

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

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

All page content should be contained by landmarks: 111 elements on the page fail this check, rated moderate by axe-core.

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

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

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

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

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

Headings skip levels (h2 → h5 and h2 → h4), 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.

1 link use generic text like “click here” or “learn more”, which tells Google nothing about the page behind it.

The homepage links to 235 pages on upsinverter.com and 26 external pages.

There is no https://www.upsinverter.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.

robots.txt blocks GPTBot, ClaudeBot, Google-Extended, Applebot-Extended and CCBot, which collect pages to train models. That's a legitimate choice and doesn't by itself stop the site appearing in AI answers, which the crawlers above handle.

https://www.upsinverter.com/solar-pcu and https://www.upsinverter.com/utl/solar-inverter all use the title “Buy Solar Inverter at Best Price | Ongrid, Offgrid, & Hybrid”. Search engines can't tell which page to show for a search, so each competes with the others.

https://www.upsinverter.com/on-grid-pcu has no meta description, so Google writes the search snippet from whatever text it finds.

https://www.upsinverter.com/solar-pcu and https://www.upsinverter.com/utl/solar-inverter use the same meta description. A description written for each page earns more clicks.

Your homepage links to 4 pages by a URL that isn't their canonical one, for example https://www.upsinverter.com/solar-pcu, whose canonical is https://www.upsinverter.com/utl/solar-inverter. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

We fetched 15 pages linked from your homepage (of 76 found) and read each the way a search engine does.

4 of 12 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

The page uses 1 deprecated browser API that will stop working in future browsers (“Unload event listeners are deprecated and will be removed.”).

3 images are served at too low a resolution for sharp phone screens.

Large scripts ship without source maps.

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

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.

The homepage carries about 1,124 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager and Meta Pixel (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 5 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 14 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.