compassmining.io website review

2 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.4 s.

Your mobile performance score is 48 (desktop: 65). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

7 images could be 2.8 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

43 files are served with short cache lifetimes, so returning visitors download them again (2.8 MB).

Google Tag Manager costs a phone 412 ms of main-thread work and 525 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 349 KiB of JavaScript is downloaded but never used on this page.

A phone's processor spends 3.4 s on main-thread work while loading, 2.1 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

14 long tasks block the main thread while loading, the longest for 322 ms. During a long task the page ignores taps.

8 third-party services load with your homepage (Google Tag Manager, reddit and Twitter Online Conversion Tracking and others), adding 662 KiB and 490 ms of main-thread time.

About 17 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 80 ms faster on a phone.

Polyfills for old browsers add 62 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.

2 KiB JavaScript is shipped twice across bundles.

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 10.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “We are a Bitcoin-first company on a mission to support the …”.

The page becomes fully interactive after 24.8 s. Good is under 3.8 s.

Visually, the page fills in at 9.7 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 3.2 s on a phone. Good is under 1.8 s.

Real visitors wait 3.0 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors see the first content after 2.1 s (75th percentile). Good is under 1.8 s.

Real visitors wait 1.4 s for your server to start answering (75th percentile). Good is under 800 ms.

Scripts block taps and scrolling for 496 ms in total while the page loads. Good is under 200 ms.

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

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' tap response (inp) went from 203 ms to 196 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' largest content (lcp) went from 3.5 s to 3.8 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 8.5 MB in 120 requests on a phone: images 4.9 MB (43), media 2.0 MB (1) and scripts 1.2 MB (38). Under 2 MB keeps phones on slow connections fast.

9 images (811 KiB) 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.

4 images further down the page (229 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 2.41 g of CO₂e: 288.7 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

All page content should be contained by landmarks: 14 elements on the page fail 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.

2 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 and h2 → h4), which makes the page harder to scan with a screen reader.

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

7 links have no real href, so search engines can't follow them.

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

The homepage links to 43 pages on compassmining.io and 20 external pages.

Your robots.txt shuts out ChatGPT (ChatGPT-User) and Perplexity (PerplexityBot). 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 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.

The HTML your server sends has 707 of the 1,393 words a browser shows. AI crawlers don't run JavaScript, so they miss the rest.

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.

robots.txt blocks GPTBot, Google-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.

Your homepage links to /hosting-orders, which answers with an error. Visitors hit a dead end and search engines drop it.

/ and /education/tag/facility-update all use the title “Bitcoin Mining Hardware and Hosting | Compass Mining”. Search engines can't tell which page to show for a search, so each competes with the others.

/autopay and /prepaid-credits use the same meta description. A description written for each page earns more clicks.

/hardware, /marketplace, /repairs, /miners-upgrade, /autopay and /prepaid-credits and 3 others have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 25 found) and read each the way a search engine does.

2 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

4 links from your homepage to your own site are broken, for example https://compassmining.io/hosting-orders (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.

X-Content-Type-Options: nosniff is missing, so browsers may guess file types.

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.

compassmining.io 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.

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.

A local customer looking to call finds no phone number on the homepage. Add one, ideally as a tap-to-call link.

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

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

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

There is no form on the homepage, so every lead has to click through to another page first.

There is no link to Google or Apple Maps. A directions link is one tap for a phone visitor.

The homepage carries about 1,393 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 Amazon Ads, Google Ads, Google Analytics, Google Tag Manager and Reddit Pixel and 1 more (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 9 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 24 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.