66degrees.com website review

39 files are served with short cache lifetimes, so returning visitors download them again (2.7 MB).

8 third-party services load with your homepage (Google Tag Manager, website-files.com and Google CDN and others), adding 4.2 MB and 958 ms of main-thread time.

Your mobile performance score is 84. Pages that score under 90 lose visitors before the first paint.

About 679 KiB of JavaScript is downloaded but never used on this page.

12 files block the first paint until they finish downloading. Deferring or inlining them could save about 600 ms.

website-files.com costs a phone 160 ms of main-thread work and 3.1 MB 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.

Google Tag Manager costs a phone 345 ms of main-thread work and 435 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 3.2 s on main-thread work while loading, 1.4 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

The page has 1,813 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Google CDN costs a phone 135 ms of main-thread work and 349 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.

10 long tasks block the main thread while loading, the longest for 194 ms. During a long task the page ignores taps.

5 images could be 163 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

About 53 KiB of CSS is downloaded but never applied on this page.

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

Polyfills for old browsers add 19 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.

The page becomes fully interactive after 16.0 s. Good is under 3.8 s.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 90 ms to 119 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors see the first content after 2.5 s (75th percentile). Good is under 1.8 s.

Real visitors wait 930 ms for your server to start answering (75th percentile). Good is under 800 ms.

Scripts block taps and scrolling for 427 ms in total while the page loads. Good is under 200 ms.

The first text or image appears after 2.2 s on a phone. Good is under 1.8 s.

Visually, the page fills in at 4.1 s (Speed Index). Good is under 3.4 s.

Your homepage downloads 4.9 MB in 125 requests on a phone: media 2.6 MB (2), scripts 1.5 MB (63) and other files 316 KiB (31). Under 2 MB keeps phones on slow connections fast.

1 image is downloaded at several times the size a phone draws it, for example 6a85d181b46e28ec853324a1_Screenshot 2026-08-19 at 11.51.51 A at 390 px wide, shown at 117 px. Resized copies would save about 13 KiB.

1 image (67 KiB) is 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 1.40 g of CO₂e: 168.1 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

Certain ARIA roles must be contained by particular parents: 3 elements on the page fail this check, rated critical by axe-core.

7 tap targets are too small or too close together to hit reliably with a finger.

Interactive controls must not be nested: 6 elements on the page fail this check, rated serious by axe-core.

The skip-link target should exist and be focusable: 1 element on the page fails this check, rated moderate by axe-core.

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

Headings skip levels (h1 → h5, h3 → h5 and h3 → h5), which makes the page harder to scan with a screen reader.

Your robots.txt disallows the whole site for every crawler, so search engines are told to stay out.

Your meta description is 265 characters; Google truncates after about 160, so the end of your pitch is cut.

Structured data found (Organization) but with 1 problem, for example “Organization: url points at a different host (https://cdn.prod.website-files.com)”.

The homepage links to 111 pages on 66degrees.com and 6 external pages.

Your robots.txt shuts out ChatGPT search (OAI-SearchBot), ChatGPT (ChatGPT-User), Claude search (Claude-SearchBot), Claude (Claude-User), Perplexity (PerplexityBot) and Perplexity (Perplexity-User). These fetch pages to answer people's questions and cite the source, so your site can't be quoted or linked in those answers.

There is no https://www.66degrees.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.

robots.txt blocks GPTBot, ClaudeBot, Applebot-Extended and CCBot, which collect pages to train models. That's a legitimate choice and doesn't by itself stop the site appearing in AI answers.

We fetched 15 pages linked from your homepage (of 48 found) and read each the way a search engine does.

1 error was logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

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.

Social proof on the homepage: 8 customer or partner logos. Pairing it with named testimonials or customer logos makes it far more convincing.

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 722 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, LinkedIn Insight and Microsoft Clarity (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 11 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 30 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.