Custom HTTP Headers – Supply any header value in a request, from Accept-Language to cookie.

User-Agent Switcher – Crawl as Googlebot, Bingbot, Yahoo! Slurp, mobile user-agents or your own custom UA.

Images over 100kb, missing alt text, alt text over 100 characters.

Images – All URLs with the image link & all images from a given page.

AJAX – Select to obey Google’s now deprecated AJAX Crawling Scheme.

Rendering – Crawl JavaScript frameworks like AngularJS and React, by crawling the rendered HTML after JavaScript has executed.

Outlinks – View all pages a URL links out to, as well as resources.

Inlinks – View all pages linking to a URL, the anchor text and whether the link is follow or nofollow.

hreflang Attributes – Audit missing confirmation links, inconsistent & incorrect languages codes, non canonical hreflang and more.

Redirect Chains – Discover redirect chains and loops.

Follow & Nofollow – View meta nofollow, and nofollow link attributes.

Pagination – View rel=“next” and rel=“prev” attributes.X-Robots-Tag – See directives issued via the HTTP Headder.Canonicals – Link elements & canonical HTTP headers.

Meta Refresh – Including target page and time delay.

Meta Robots – Index, noindex, follow, nofollow, noarchive, nosnippet etc.

H2 – Missing, duplicate, long, short or multiple headings.

H1 – Missing, duplicate, long, short or multiple headings.

Word Count – Analyse the number of words on every page.

Crawl Depth – View how deep a URL is within a website’s architecture.

Last-Modified Header – View the last modified date in the HTTP header.

Response Time – View how long pages take to respond to requests.

Meta Keywords – Mainly for reference or regional search engines, as they are not used by Google, Bing or Yahoo.

Meta Description – Missing, duplicate, long, short or multiple descriptions.

Page Titles – Missing, duplicate, long, short or multiple title elements.

Duplicate Pages – Discover exact and near duplicate pages using advanced algorithmic checks.

URL Issues – Non ASCII characters, underscores, uppercase characters, parameters, or long URLs.

Security – Discover insecure pages, mixed content, insecure forms, missing security headers and more.

External Links – View all external links, their status codes and source pages.

Blocked Resources – View & audit blocked resources in rendering mode.

Blocked URLs – View & audit URLs disallowed by the robots.txt protocol.

Redirects – Permanent, temporary, JavaScript redirects & meta refreshes.

Errors – Client errors such as broken links & server errors (No responses, 4XX client & 5XX server errors).

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