tellabs.com website review

2 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.0 s.

Your mobile performance score is 73. Pages that score under 90 lose visitors before the first paint.

About 82 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 580 ms faster on a phone.

assetcdn.net costs a phone 63 ms of main-thread work and 318 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 161 KiB of CSS is downloaded but never applied on this page.

4 images could be 124 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

1 third-party service load with your homepage (assetcdn.net), adding 318 KiB and 63 ms of main-thread time.

7 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.

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 5.1 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “News Releases”. Most of its time is element render delay (2.7 s).

The first text or image appears after 3.4 s on a phone. Good is under 1.8 s.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 1.6 s to 2.5 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors see the first content after 2.3 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 page becomes fully interactive after 5.2 s. Good is under 3.8 s.

Visually, the page fills in at 4.3 s (Speed Index). Good is under 3.4 s.

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

1 image further down the page (22 KiB) download before anyone scrolls to it. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 0.26 g of CO₂e: 31.4 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

4 elements hidden from screen readers can still receive keyboard focus.

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

Form elements should have a visible label: 1 element on the page fails this check, rated serious by axe-core.

All page content should be contained by landmarks: 6 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.

Headings skip levels (h2 → h4, h1 → h4 and h2 → h4), which makes the page harder to scan with a screen reader.

Your title is only 14 characters: “Home - Tellabs”. Between 30 and 65 characters leaves room to say what you do and for whom.

No canonical URL, so duplicate versions of the homepage (with or without www, with tracking parameters) can split ranking signals.

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

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

The homepage links to 56 pages on tellabs.com and 13 external pages.

There is no https://tellabs.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://tellabs.com/solutions/pon/innovations took over 3 s to send its HTML from our server.

We fetched 15 pages linked from your homepage (of 46 found) and read each the way a search engine does.

2 of 8 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

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

Social proof on the homepage: 3 trust badges. Pairing it with named testimonials or customer logos makes it far more convincing.

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 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.

Loading the homepage contacts 1 host run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.