certiprof.com website review

About 786 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 3.9 s faster on a phone.

17 files are served with short cache lifetimes, so returning visitors download them again (437 KiB).

8 third-party services load with your homepage (Shopify, Google Tag Manager and Hubspot and others), adding 1.9 MB and 1.1 s of main-thread time.

Your mobile performance score is 61. Pages that score under 90 lose visitors before the first paint.

A phone's processor spends 3.7 s on main-thread work while loading, 1.6 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

9 files block the first paint until they finish downloading. Deferring or inlining them could save about 350 ms.

Polyfills for old browsers add 26 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 300 ms faster on a phone.

Shopify costs a phone 257 ms of main-thread work and 641 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.

Google Tag Manager costs a phone 200 ms of main-thread work and 494 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.

azurefd.net costs a phone 54 ms of main-thread work and 321 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.

8 images could be 110 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 150 ms faster on a phone.

About 68 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.

13 long tasks block the main thread while loading, the longest for 146 ms. During a long task the page ignores taps.

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.

3 KiB could be saved by minifying CSS.

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

The page becomes fully interactive after 20.5 s. Good is under 3.8 s.

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

Real visitors wait 214 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Scripts block taps and scrolling for 292 ms in total while the page loads. Good is under 200 ms.

The first text or image appears after 1.9 s on a phone. Good is under 1.8 s.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 182 ms to 208 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 2.2 s to 2.6 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 3.7 MB in 360 requests on a phone: scripts 2.0 MB (81), other files 1.3 MB (230) and images 197 KiB (30). Under 2 MB keeps phones on slow connections fast.

1 image (48 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 1.05 g of CO₂e: 125.7 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

3 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.

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

Elements with visible text labels do not have matching accessible names. (1 element).

Your title is 81 characters, so Google will cut it off around 60: “CertiProf | Global Certification & Training Ecosystem | CertiProf | International”.

The homepage links to 50 pages on certiprof.com and 9 external pages.

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.

/collections/public and /collections/best-sellers-exams have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 27 found) and read each the way a search engine does.

1 error was logged to the browser console while the page loaded, for example “Cannot read properties of undefined (reading 'themeName')”.

HSTS is set, but max-age is 91 days; one year is the recommended minimum.

1 link go through two or more redirects, for example http://facebook.com/certiprof.

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.

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.

certiprof.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.

certiprof.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 phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach 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 263 words of visible text.

The page uses urgency cues (a countdown or limited-time wording).

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, HubSpot and Meta Pixel and 4 mores (measured from a US location before any click). A consent tool (HubSpot cookie banner) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 16 cookies, 1 of them by other companies (measured from a US location before any click).

Loading the homepage contacts 33 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.