nippondata.com website review

46 files block the first paint until they finish downloading. Deferring or inlining them could save about 4.5 s.

About 840 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.3 s faster on a phone.

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

A phone's processor spends 5.2 s on main-thread work while loading, 3.0 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

8 third-party services load with your homepage (Google CDN, Google Tag Manager and Facebook and others), adding 2.2 MB and 1.6 s of main-thread time.

84 files are served with short cache lifetimes, so returning visitors download them again (708 KiB).

8 images could be 597 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 150 ms faster on a phone.

Google CDN costs a phone 619 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.

Google Tag Manager costs a phone 577 ms of main-thread work and 505 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.

About 124 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 450 ms faster on a phone.

Reduce initial server response time. Google estimates savings of 559 ms on a phone.

The HTML itself could arrive about 550 ms sooner: redirects, a slow server response or missing compression delay everything after it.

The page has 2,305 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Your server takes 659 ms to send the HTML. Google recommends under 600 ms; everything else waits for it.

20 long tasks block the main thread while loading, the longest for 234 ms. During a long task the page ignores taps.

Polyfills for old browsers add 13 KiB JavaScript that modern phones do not need.

6 KiB could be saved by minifying JavaScript.

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.

Your largest element takes 9.2 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the element shown below. Most of its time is resource load delay (3.8 s).

The page becomes fully interactive after 22.8 s. Good is under 3.8 s.

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

Scripts block taps and scrolling for 1.2 s in total while the page loads. Good is under 200 ms.

Real visitors wait 2.9 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' tap response (inp) went from 159 ms to 198 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors see the first content after 2.2 s (75th percentile). Good is under 1.8 s.

Real visitors wait 1.3 s for your server to start answering (75th percentile). Good is under 800 ms.

The first text or image appears after 2.9 s on a phone. Good is under 1.8 s.

Your homepage downloads 6.6 MB in 189 requests on a phone: images 3.1 MB (60), scripts 2.0 MB (53) and fonts 730 KiB (10). Under 2 MB keeps phones on slow connections fast.

2 images (682 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.

By the Sustainable Web Design model, a visit to your homepage emits about 1.88 g of CO₂e: 225.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Certain ARIA roles must contain particular children: 1 element on the page fails this check, rated critical by axe-core.

1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.

All page content should be contained by landmarks: 30 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.

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.

The skip-link target should exist and be focusable: 1 element on the page fails this check, rated moderate by axe-core.

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

1 visible link has no text or label, so screen readers cannot say where it goes.

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

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

No Open Graph image, so links shared on LinkedIn, Slack or Facebook show no preview picture.

The homepage links to 179 pages on nippondata.com and 5 external pages.

There is no https://nippondata.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.

We fetched 15 pages linked from your homepage (of 74 found) and read each the way a search engine does.

2 images are displayed at the wrong aspect ratio, so they look stretched or squashed.

Your longest form asks for 9 fields (6 required). Every extra field lowers completion.

The homepage shows no opening hours. If customers visit or call, show when.

There is no link to Google or Apple Maps. A directions link is one tap for a phone visitor.

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 1,238 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Meta Pixel and Microsoft Clarity (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 7 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 17 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.