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Whitespace in URL
Query string contains paginated parameters
Query string contains repetitive parameters
Query string contains search or filter parameters
Query string contains sort parameters
URL contains more than one Google Tag Manager code
Long URLs
Query string contains a question mark
URL contains non-ASCII characters
URL contains repetitive elements
Has a link with whitespace in href attribute
Page has empty src attributes
URL resolves under both HTTP and HTTPS
Has link with a URL referencing a local or UNC file path:
Has link with a URL referencing LocalHost or 127.0.0.1
HTTP URL contains a password input field
Timed out
5xx server errors
4xx client errors
Page has broken CSS files
Page has broken JavaScript files
Page has broken images
Google Contains no Google Tag Manager code
URL Contain Uppercase characters
URL in multiple XML sitemaps
3xx redirects in XML sitemaps
Timed out URL in XML sitemaps
4xx client errors in XML sitemaps
5xx server errors in XML sitemaps
Disallowed URL in XML sitemaps
Noindex URL in XML sitemaps
Canonicalized URL in XML sitemaps
Viewport <meta> tag prevents the user from scaling
Viewport <meta> tag initial-scale is incorrect
Viewport <meta> tag has a specific width set
Viewport <meta> tag has a minimum-scale set
Viewport <meta> tag has a maximum-scale set
Viewport <meta> tag does not have a width set
Unsupported browser plugins found
Multiple viewport <meta> tags were found in <head>
Missing <viewport> meta tag in <head>
Font size is too small for mobile devices
Has one or more image-map <map> tags
Viewport tag is missing an initial-scale
Page is not submitted to sitemap and has at least 1 impression
3xx pages that have at least 1 click:0 pages
Canonicalized pages that have at least 1 click:0 pages
4xx pages that have at least 1 click:0 pages
Page is blocked by robots.txt and has at least 1 impression:0 pages
Non-indexable page that has at least 1 impression:0 pages
Page has 0 impressions
Page has <table> but has no <th>
attribute
Page has <table> but has no <caption> attribute
Page contains different structured data formats
PHP fatal error
Google Tag Manager code in <body>
Page has no declared <!doctype html>
<html> tag is empty
Page has identical HTML id attributes
Headings hierarchy is broken
3xx other redirects
HTTPS to HTTP redirect
HTTP to HTTPS redirect
Meta refresh redirect
Redirect chains
Internal URL redirect broken
Internal redirects from trailing slash mismatch
Internal redirects from case normalization
Internal URL redirects back to itself
302 redirects
301 redirects
HTTPS page links to HTTP JavaScript
HTTPS page links to HTTP CSS
HTTPS URL contains a form posting to HTTP
HTTP URLs
HTTPS page has internal links to HTTP
Page has HTTP link to www.w3.org
Defence against MIME type sniffing is not implemented
Defence against click-jacking attacks is not implemented
Defence against cross-site scripting attacks is not implemented
Redirect to HTTPS is not implemented in response header
Page has content before <!doctype html>
<body> tag is missing
<html> tag is missing
</html> tag is missing
</head> tag is missing
</body> tag is missing
Page has content after </html>
More than one </html> tag on page
More than one </body> tag on page
More than one </head> tag on page
More than one </html> tag on page
More than one </head> tag on page
tag is missing
Multiple, mismatched base URLs
<head> tag is missing
Multiple canonical tags
Multiple base URLs
Meta robots found outside of
Canonical is a relative URL
Nofollow in HTML and HTTP header
Base URL malformed or empty
Mismatched noindex directives in HTML and header
Mismatched nofollow directives in HTML and header
Page has no declared character encoding
Page has disallowed JavaScript files
Page has disallowed images
Page has disallowed CSS files
Canonicalized URL is noindex, nofollow
Canonical points to another canonicalized URL
Canonical points to a disallowed URL
Canonical outside of head
Noscript in head contains invalid HTML elements
Double slash in URL
Mismatched canonical tag in HTML and HTTP header
Canonical from HTTPS to HTTP
Canonical from HTTP to HTTPS
Canonical to non-200
Canonical is empty
H1 has other tags inside
H2 has other tags inside
Multiple noindex directives
Noindex in HTML and HTTP header
Canonical is missing
Canonical points to a noindex URL
HTTPS page links to HTTP image
Low word count
Description is empty
HTML lang attribute missing
H1 is empty
Description duplicates
More than one description tag on page
H1 duplicates
Author box with “Admin”
Page has not been updated more than 1 year
Duplicate pages without canonical
More than one body tag on page
More than one title tag on page
Title is empty
Title is missing
H1 too short
H2 starts with a lowercase letter
Title too short
Text to code ratio < 10%
Page has no list markdown
Page has alt tags with one word
Page has no strong importance elements
H1 is missing
H2 is missing
Description is missing
Missing alt text
Lorem Ipsum content on the live site
Page has an anchored image with no alt text
URL receives both follow and nofollow internal links
Page has more than 100 identical internal links
Page has internal links to 4xx pages
Has a link with an empty href attribute
Page has more than 100 external links
Page has outgoing links with malformed href data
Page has link to a non-HTTP protocol
Orphan URLs – only found via redirect
Orphan URLs – only linked from other isolated URLs
Orphan URLs – only found via canonical
Orphan URLs – only found via noindex, follow
Page has a link with an invalid phone number
Page has no outgoing links
Page has broken links to external websites
Page has internal links to 3xx pages
Broken jump link
Has only one followed internal linking URL
Orphan URLs – only found via sitemap