certmag.com website review

38 files are served with short cache lifetimes, so returning visitors download them again (1.2 MB).

The page has 3,148 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

About 886 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 600 ms faster on a phone.

Your mobile performance score is 50. Pages that score under 90 lose visitors before the first paint.

8 third-party services load with your homepage (Facebook, netomi.com and ContentSquare and others), adding 1.4 MB and 772 ms of main-thread time.

2 files block the first paint until they finish downloading. Deferring or inlining them could save about 500 ms.

A phone's processor spends 3.5 s on main-thread work while loading, 2.3 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

15 long tasks block the main thread while loading, the longest for 293 ms. During a long task the page ignores taps.

netomi.com costs a phone 126 ms of main-thread work and 424 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 41 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 150 ms faster on a phone.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 150 ms).

2 images could be 49 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Polyfills for old browsers add 34 KiB JavaScript that modern phones do not need.

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 21.0 s. Good is under 3.8 s.

Your largest element takes 6.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “CompTIA Security+ Certification Plus Series logo badge”.

Visually, the page fills in at 6.7 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 725 ms in total while the page loads. Good is under 200 ms.

Real visitors wait 208 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

The layout shifts by 0.108 while loading, so content jumps under the reader's thumb. Good is under 0.1.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 260 ms to 293 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 3.0 MB in 132 requests on a phone: scripts 2.2 MB (56), fonts 450 KiB (1) and other files 147 KiB (54). Under 2 MB keeps phones on slow connections fast.

image is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

By the Sustainable Web Design model, a visit to your homepage emits about 0.86 g of CO₂e: 102.9 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 button has no accessible name, so screen readers announce just “button”.

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

Elements with role="dialog" or role="alertdialog" do not have accessible names. (1 element).

Your title is 68 characters, so Google will cut it off around 60: “Information Technology (IT) Certifications & Tech Training | CompTIA”.

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

The homepage links to 61 pages on certmag.com and 8 external pages.

/en-us/nonprofit has no meta description, so Google writes the search snippet from whatever text it finds.

We fetched 15 pages linked from your homepage (of 30 found) and read each the way a search engine does.

1 third-party cookie is set on load; browsers are restricting these, so whatever relies on them breaks.

6 errors were logged to the browser console while the page loaded, for example “Connecting to 'https://ad.doubleclick.net/ccm/s/collect?auid=1577695589.1793843018&gtm=45E92e6b31v9205670028za204zd9205…”.

Chrome logged issues while loading the page (“Cookie”).

Large scripts ship without source maps.

1 link to other sites is dead, for example https://shop.comptia.org/en-us/account/customer-profile/ (404).

Opening https://certmag.com goes through 3 redirects before the homepage loads.

X-XSS-Protection is set to “1; mode=block”; the header is deprecated and can introduce bugs. Use 0 or remove it.

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

comptia.org 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.

comptia.org'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 phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

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

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 461 words of visible text.

certmag.com has no DMARC record, so nothing tells receivers what to do with mail that fails SPF or DKIM. Gmail and Yahoo require DMARC from bulk senders.

certmag.com has no SPF record, so mail servers can't tell which servers may send email as you. Your mail lands in spam more often, and anyone can send mail pretending to be you.

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.

certmag.com has no MX record, so it receives no email. SPF -all and DMARC reject still matter: they stop others sending mail as you.

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, LinkedIn Insight and Meta Pixel (measured from a US location before any click). A consent tool (OneTrust) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 27 cookies (measured from a US location before any click).

Loading the homepage contacts 28 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.