colind.com website review

3 images could be 509 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 1.6 s faster on a phone.

About 281 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.5 s faster on a phone.

15 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.7 s.

Your mobile performance score is 67. Pages that score under 90 lose visitors before the first paint.

Google Tag Manager costs a phone 146 ms of main-thread work and 296 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.

5 third-party services load with your homepage (Google Tag Manager, Pardot and cdn-cookieyes.com and others), adding 475 KiB and 210 ms of main-thread time.

2 long tasks block the main thread while loading, the longest for 101 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).

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

2 KiB could be saved by minifying JavaScript.

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

The page becomes fully interactive after 10.0 s. Good is under 3.8 s.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 1.9 s to 2.4 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors see the first content after 2.8 s (75th percentile). Good is under 1.8 s.

Visually, the page fills in at 5.5 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 2.6 s on a phone. Good is under 1.8 s.

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

By the Sustainable Web Design model, a visit to your homepage emits about 0.41 g of CO₂e: 49.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

The page has no <main> landmark, so screen-reader users cannot jump straight to the content.

Page should contain a level-one heading: 1 element on the page fails this check, rated moderate by axe-core.

Users should be able to zoom and scale the text up to 500%: 1 element on the page fails this check, rated minor by axe-core.

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

Your title is only 26 characters: “Home - Columbus Industries”. Between 30 and 65 characters leaves room to say what you do and for whom.

Your meta description is 252 characters; Google truncates after about 160, so the end of your pitch is cut.

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

1 link has no real href, so search engines can't follow it.

The homepage links to 86 pages on colind.com and 9 external pages.

Your Organization JSON-LD is missing sameAs (social profiles), description and contact details. These are the facts AI assistants use to describe a business and to tell it apart from others with a similar name.

/contact-us has no <h1> headline, so visitors and search engines get no clear main topic.

/solutions/hand-dryers and /solutions/restoration took over 3 s to send their HTML from our server.

We fetched 15 pages linked from your homepage (of 31 found) and read each the way a search engine does.

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

1 link go through two or more redirects, for example https://www.columbusindustries.com/products/1-furnace-filters/.

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.

columbusindustries.com 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.

columbusindustries.com's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.

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

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

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 348 words of visible text.

DMARC is set to p=none, so mail pretending to be colind.com is still delivered. Reports are on, so moving to quarantine is the next step.

We found no DKIM key on the selectors the big email providers use. If you send through one of them, turning on DKIM signing improves delivery.

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.

Opening the homepage sets 2 cookies (measured from a US location before any click).

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