senko.com website review

About 385 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 2.3 s faster on a phone.

27 files block the first paint until they finish downloading. Deferring or inlining them could save about 2.3 s.

About 207 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.

The page has 3,591 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

11 images could be 1.3 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Your mobile performance score is 57. Pages that score under 90 lose visitors before the first paint.

48 KiB could be saved by minifying JavaScript.

6 third-party services load with your homepage (Cookiebot, Google Tag Manager and FontAwesome CDN and others), adding 741 KiB and 337 ms of main-thread time.

17 KiB could be saved by minifying CSS.

5 long tasks block the main thread while loading, the longest for 147 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).

Polyfills for old browsers add 46 KiB JavaScript that modern phones do not need.

4 files are served with short cache lifetimes, so returning visitors download them again (34 KiB).

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

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

The page becomes fully interactive after 28.6 s. Good is under 3.8 s.

Visually, the page fills in at 9.9 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 4.4 s on a phone. Good is under 1.8 s.

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

Real visitors wait 1.0 s for your server to start answering (75th percentile). Good is under 800 ms.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 3.1 s to 3.7 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 7.5 MB in 160 requests on a phone: images 5.3 MB (64), scripts 1.2 MB (59) and fonts 824 KiB (9). Under 2 MB keeps phones on slow connections fast.

36 images (3.4 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.

3 images further down the page (191 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 2.14 g of CO₂e: 256.3 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”.

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

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

Elements with visible text labels do not have matching accessible names. (3 elements).

Your title is 75 characters, so Google will cut it off around 60: “SENKO Advanced Components, Inc. » Innovative Optical Interconnect Solutions”.

There are 2 <h1> headlines (“Bringing AI to LifeOne Connection at a Time” and “Your Source for Optical Interconnects”). One clear main headline is easier for people and search engines.

Your meta description is 354 characters; Google truncates after about 160, so the end of your pitch is cut.

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

The homepage links to 597 pages on senko.com and 16 external pages.

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.

/all-events is marked noindex but linked from your homepage. If it is meant to be found, remove the noindex.

/careers-culture, /newsletter and /blog have no meta description, so Google writes the search snippet from whatever text it finds.

Your homepage links to 1 page by a URL that isn't its canonical one, for example /blog, whose canonical is /resources/blog. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

/newsletter has no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 199 found) and read each the way a search engine does.

2 of 10 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

3 errors were logged to the browser console while the page loaded, for example “Access to XMLHttpRequest at 'https://use.fontawesome.com/releases/v6.7.2/css/all.css' from origin 'https://www.senko.co…”.

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.

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

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

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 420 words of visible text.

Before a visitor clicks anything, the page loads Google Tag Manager (measured from a US location before any click). A consent tool (Cookiebot) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 1 cookie (measured from a US location before any click).

Loading the homepage contacts 8 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.