tsmcorp.com website review

33 files are served with short cache lifetimes, so returning visitors download them again (3.6 MB).

12 images could be 1.5 MB 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.

5 files block the first paint until they finish downloading. Deferring or inlining them could save about 2.5 s.

About 393 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.8 s faster on a phone.

Your mobile performance score is 43 (desktop: 71). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

5 third-party services load with your homepage (Google Tag Manager, Google CDN and Other Google APIs/SDKs and others), adding 719 KiB and 922 ms of main-thread time.

Google Tag Manager costs a phone 587 ms of main-thread work and 311 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.

11 long tasks block the main thread while loading, the longest for 448 ms. During a long task the page ignores taps.

A phone's processor spends 3.7 s on main-thread work while loading, 1.6 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

Google CDN costs a phone 334 ms of main-thread work and 348 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 27 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 150 ms faster on a phone.

8 KiB could be saved by minifying CSS.

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

Desktop scores 71 but mobile only 43. 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.

Your largest element takes 11.2 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “TSM is a full-service manufacturer of custom components for…”.

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 11.4 s. Good is under 3.8 s.

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

Visually, the page fills in at 4.5 s (Speed Index). Good is under 3.4 s.

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

Chrome's UX Report (opens in a new tab) has too little real-visitor traffic for this site, so the figures here are lab measurements from Google's test phone on a throttled 4G connection.

Your homepage downloads 11.2 MB in 43 requests on a phone: media 7.2 MB (1), images 3.0 MB (26) and scripts 811 KiB (5). Under 2 MB keeps phones on slow connections fast.

iStock-665481590-edit-TSMemployee.png weighs 691 KiB. On a phone connection a single image that size takes seconds.

3 images (948 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 3.17 g of CO₂e: 380.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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: 2 elements on the page fail this check, rated moderate by axe-core.

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.

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.

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

No twitter:card tag. X falls back to Open Graph, which is set, so this is minor.

The homepage links to 36 pages on tsmcorp.com and 1 external page.

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.tsmcorp.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.tsmcorp.com/News has no <title>, so Google invents the link text in results.

https://www.tsmcorp.com/News has no meta description, so Google writes the search snippet from whatever text it finds.

https://www.tsmcorp.com/News and https://www.tsmcorp.com/sitemap have under 150 words in the HTML. Thin pages rarely rank; if the text loads with JavaScript, crawlers that don't run it see even less.

We fetched 14 pages linked from your homepage and read each the way a search engine does.

3 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

Large scripts ship without source maps.

Social proof on the homepage: 12 customer or partner logos. Pairing it with named testimonials or customer logos makes it far more convincing.

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 353 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics and Google Tag Manager (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 2 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 7 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.