comicbook.com website review

14 images could be 867 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 2.4 s faster on a phone.

Your mobile performance score is 74 (desktop: 84). Pages that score under 90 lose visitors before the first paint.

8 third-party services load with your homepage (Google Tag Manager, Facebook and Google/Doubleclick Ads and others), adding 1.3 MB and 763 ms of main-thread time.

About 733 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 650 ms.

25 files are served with short cache lifetimes, so returning visitors download them again (357 KiB).

Google Tag Manager costs a phone 250 ms of main-thread work and 502 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 2.3 s on main-thread work while loading, 998 ms of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

The page has 2,005 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Polyfills for old browsers add 51 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

9 long tasks block the main thread while loading, the longest for 139 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.

The page becomes fully interactive after 19.3 s. Good is under 3.8 s.

Your largest element takes 5.3 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “It’s Official, Miraculous: Tales of Ladybug & Cat Noir Is G…”.

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

Over the last 25 four-week periods to 2026-10-03, real Chrome visitors' tap response (inp) went from 114 ms to 117 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-03, real Chrome visitors' largest content (lcp) went from 1.0 s to 1.1 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 2.8 MB in 186 requests on a phone: scripts 1.6 MB (52), images 955 KiB (35) and fonts 141 KiB (4). Under 2 MB keeps phones on slow connections fast.

1 image is downloaded at several times the size a phone draws it, for example p-s-1_d2fd57.png at 390 px wide, shown at 84 px. Resized copies would save about 41 KiB.

By the Sustainable Web Design model, a visit to your homepage emits about 0.80 g of CO₂e: 96.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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.

The homepage links to 404 pages on comicbook.com and 22 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.

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.

/category/collectibles, /tag/comic-reviews, /category/marvel, /category/dc, /tag/image-comics and /tag/idw and 4 others have no meta description, so Google writes the search snippet from whatever text it finds.

We fetched 15 pages linked from your homepage (of 126 found) and read each the way a search engine does.

25 of 51 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

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 “Uncaught TypeError: Cannot read properties of null (reading 'appendChild')”.

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

Requests the notification permission on page load.

No Strict-Transport-Security header, so browsers may still try plain http first on a return visit.

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

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

2 links go through two or more redirects, for example https://facebook.com/comicbookdotcom.

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.

comicbook.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.

comicbook.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 1,841 words of visible text.

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

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 Comscore, Criteo, Google Ads, Google Analytics and Google Tag Manager and 4 mores (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 14 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 46 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.