tessco.com website review

About 551 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 3.1 s faster on a phone.

32 files are served with short cache lifetimes, so returning visitors download them again (250 KiB).

9 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.1 s.

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

8 third-party services load with your homepage (Google Tag Manager, Intercom and Hubspot and others), adding 1.4 MB and 1.1 s of main-thread time.

8 images could be 983 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.

About 108 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 600 ms faster on a phone.

Google Tag Manager costs a phone 524 ms of main-thread work and 534 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.

A phone's processor spends 2.7 s on main-thread work while loading, 1.6 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

FontAwesome CDN costs a phone 83 ms of main-thread work and 423 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 224 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 21 KiB JavaScript that modern phones do not need.

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.

For real visitors the layout shifts by 0.61 (75th percentile). Good is under 0.1.

Your largest element takes 19.3 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “webhdr_UtilFleetMonth_Widescreen_092623.jpg”.

The page becomes fully interactive after 19.5 s. Good is under 3.8 s.

Visually, the page fills in at 8.2 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 3.8 s on a phone. Good is under 1.8 s.

Scripts block taps and scrolling for 677 ms in total while the page loads. Good is under 200 ms.

Real visitors wait 2.8 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors see the first content after 2.0 s (75th percentile). Good is under 1.8 s.

Real visitors wait 932 ms for your server to start answering (75th percentile). Good is under 800 ms.

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

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 95 ms to 112 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' largest content (lcp) went from 1.7 s to 1.7 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

about-tessco-bg-480W.png weighs 875 KiB. On a phone connection a single image that size takes seconds.

Your homepage downloads 3.4 MB in 114 requests on a phone: images 1.4 MB (44), scripts 1.3 MB (31) and fonts 460 KiB (7). Under 2 MB keeps phones on slow connections fast.

8 images (1.2 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.

5 images further down the page (1.0 MB) 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 0.96 g of CO₂e: 114.8 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

2 buttons have no accessible name, so screen readers announce just “button”.

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

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

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

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

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

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

No meta description, so Google writes its own snippet from whatever text it finds.

Your title is 67 characters, so Google will cut it off around 60: “Wireless Infrastructure Products & Services | Tessco LLC | Homepage”.

No structured data (JSON-LD), so Google can't show rich results such as your logo, ratings or FAQs.

There are 9 <h1> headlines (“Utility Fleet Solutions”, “Reliable Test Equipment for Utility Networks” and “Capitalize on Federal Government End-of-Year Funds”). One clear main headline is easier for people and search engines.

No Open Graph image (also missing: og:title, og:description), so links shared on LinkedIn, Slack or Facebook show no preview picture.

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

No twitter:card tag. X falls back to Open Graph, which is incomplete here.

The homepage links to 224 pages on tessco.com and 6 external pages.

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.tessco.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.tessco.com/trackYourOrder and https://www.tessco.com/quick-order have no meta description, so Google writes the search snippet from whatever text it finds.

Your homepage links to 13 pages by a URL that isn't their canonical one, for example https://www.tessco.com/c/10001, whose canonical is https://www.tessco.com/catalog/Antennas/c/10001. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

https://www.tessco.com/trackYourOrder has no <h1> headline, so visitors and search engines get no clear main topic.

https://www.tessco.com/c/20009, https://www.tessco.com/c/20010 and https://www.tessco.com/c/20011 took over 3 s to send their HTML from our server.

We fetched 15 pages linked from your homepage (of 170 found) and read each the way a search engine does.

On a 390 px-wide phone the page scrolls sideways, a sign that something is wider than the screen.

2 errors were logged to the browser console while the page loaded, for example “Access to XMLHttpRequest at 'https://www.w3schools.com/w3css/4/w3.css' from origin 'https://www.tessco.com' has been bl…”.

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

1 image is served at too low a resolution for sharp phone screens.

Large scripts ship without source maps.

Social proof on the homepage: 2 trust badges. Pairing it with named testimonials or customer logos makes it far more convincing.

The homepage has only about 247 words of visible text; thin pages give Google and first-time buyers little to go on.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

The page uses urgency cues (a countdown or limited-time wording).

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Hotjar and HubSpot and 1 more (measured from a US location before any click). A consent tool (HubSpot cookie banner) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 23 cookies (measured from a US location before any click).

Loading the homepage contacts 44 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.