Website issues we test for
Each page explains one problem our automated tests find, in accessibility, SEO or speed: what it means, why it matters, how to fix it on any site, on Shopify and on WordPress, and how to check the fix.
These are the issues we explain in depth; the scan tests many more rules. How we test your website
Accessibility issues
ARIA attributes and roles
Form fields without labels
Links and buttons without names
Low color contrast
Page titles
Page structure, headings and landmarks
Page language
Images without text alternatives
Zoom and reflow
Keyboard access and focus
SEO issues
- Pages set to noindexA noindex rule tells search engines not to show a page in their results.
- robots.txt blocks the whole siteA Disallow: / rule for all crawlers tells search engines not to crawl any page of your site, so new and changed pages aren’t picked up..
- No working XML sitemapAn XML sitemap lists the pages you want search engines to find.
- Missing title tagsThe title element names a page in browser tabs, bookmarks and, usually, search results.
- Duplicate title tagsSeveral pages with the same title look identical in search results, browser tabs and history, and give search engines less to tell them apart..
- Title tags that get cut offLong titles aren’t an error, but search results shorten them to fit the screen, so the end of a long title may never be seen..
- Missing meta descriptionsThe meta description is a short summary of a page that search engines may use as the snippet under its title.
- Pages without an H1 headingThe H1 is the main heading of a page.
- Missing or wrong canonical tagsA canonical tag names the preferred address of a page.
- Broken internal linksAn internal link that leads to an error page is a dead end for visitors and a wasted request for search engine crawlers..
- Missing Open Graph tagsOpen Graph tags decide how a link to your page looks when it’s shared in chat apps and on social networks.
- Missing or invalid structured dataStructured data describes a page to search engines in a standard format.
- Missing viewport meta tagWithout a viewport meta tag, phones render the page as a shrunken desktop layout that people have to pinch and zoom to read..
Speed issues
- Slow Largest Contentful Paint (LCP)Largest Contentful Paint measures how long it takes for the main content of a page, usually a hero image or headline, to appear.
- Content that jumps while loading (CLS)Cumulative Layout Shift measures how much visible content moves unexpectedly while a page loads, the jump that makes people tap the wrong button..
- Slow responses to clicks and taps (INP)Interaction to Next Paint measures how long a page takes to respond visibly to taps, clicks and key presses.
- A lazy-loaded main imageLazy loading is for images further down the page.
- Images larger than they need to beImages are usually the heaviest part of a page.
- Heavy pages and too many requestsThe more a page downloads, the longer it takes on a phone.
- Too much third-party codeChat widgets, analytics, ads, review apps and tag managers load code from other domains.
- Render-blocking scripts and stylesheetsScripts and stylesheets in the <head> that load synchronously make the browser wait before it can show anything on screen..
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