cotc.edu website review

About 644 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 4.0 s faster on a phone.

11 files block the first paint until they finish downloading. Deferring or inlining them could save about 2.8 s.

15 files are served with short cache lifetimes, so returning visitors download them again (434 KiB).

About 81 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.

Your mobile performance score is 40 (desktop: 47). 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, Facebook and hcaptcha.com and others), adding 1.4 MB and 1.2 s of main-thread time.

Google Tag Manager costs a phone 673 ms of main-thread work and 649 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.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 350 ms).

36 KiB could be saved by minifying JavaScript.

A phone's processor spends 3.0 s on main-thread work while loading, 1.7 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

13 long tasks block the main thread while loading, the longest for 258 ms. During a long task the page ignores taps.

Polyfills for old browsers add 35 KiB JavaScript that modern phones do not need.

1 image could be 6 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

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 21.2 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the element shown below.

The first text or image appears after 6.9 s on a phone. Good is under 1.8 s.

The page becomes fully interactive after 21.4 s. Good is under 3.8 s.

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

Scripts block taps and scrolling for 672 ms in total while the page loads. Good is under 200 ms.

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

1 image 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 133 ms to 140 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 2.1 s to 2.0 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 2.9 MB in 117 requests on a phone: scripts 1.6 MB (35), images 900 KiB (25) and fonts 217 KiB (8). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 0.82 g of CO₂e: 98.7 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Banner landmark should not be contained in another landmark: 6 elements on the page fail this check, rated moderate by axe-core.

All page content should be contained by landmarks: 2 elements on the page fail this check, rated moderate by axe-core.

Document should not have more than one banner landmark: 1 element on the page fails 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.

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

Headings should not be empty: 1 element on the page fails this check, rated minor by axe-core.

Your title is only 4 characters: “COTC”. Between 30 and 65 characters leaves room to say what you do and for whom.

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

There are 2 <h1> headlines (“COTC” and “Home”). One clear main headline is easier for people and search engines.

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

The homepage links to 114 pages on cotc.edu and 24 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 /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 72 found) and read each the way a search engine does.

The page uses 2 deprecated browser APIs that will stop working in future browsers (“Unload event listeners are deprecated and will be removed.”).

2 errors were logged to the browser console while the page loaded, for example “Access to XMLHttpRequest at 'https://webbot.admithub.com/static/css/webchat.css' from origin 'https://www.cotc.edu' has…”.

1 link to other sites is dead, for example https://cotc.elluciancrmrecruit.com/Apply/Account/Create?f=f8034119-d98c-4c92-a8ad-118e4d99c857&o=0be81549-97b9-4c7a-8103-0e749eacf40a&s=ee32e131-0aa5-ea11-a970-edf1808230b8https%3A%2F%2Fform.jotform.com%2F83543828398169&IsInquiry=True (404).

No Content-Security-Policy header, the main browser-side defence against injected scripts.

Neither X-Frame-Options nor a CSP frame-ancestors policy is set, so any site can embed yours in a frame.

3 links go through two or more redirects, for example https://my.cotc.edu/.

No Referrer-Policy header, so full URLs can leak to the sites you link to.

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

There is no /.well-known/security.txt telling researchers how to report a security problem to you.

cotc.edu has no CAA record, so any certificate authority may issue a certificate for it. A CAA record naming your provider (for example letsencrypt.org) closes that door.

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

Your homepage shows a street address but no LocalBusiness JSON-LD, so Google and AI assistants have to guess your address, hours and phone from the page text.

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

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 421 words of visible text.

Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Meta Pixel and Microsoft Clarity and 2 mores (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 16 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 38 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.