Link Building
Hidden Links
Hidden links are hyperlinks that have been intentionally made invisible to human users by matching the link color to the page background, using extremely small font sizes, or hiding the element with CSS — while remaining readable to search engine crawlers. They are a black hat SEO technique used to manipulate link counts and anchor text without user detection.
Hidden links violate Google's Webmaster Guidelines and can result in manual penalties or algorithmic filtering via the Penguin update. They are detected through page source code inspection, browser developer tools, and site auditing tools like Screaming Frog, which can reveal links hidden via CSS visibility or color properties.
Authority Links
Related Terms
Link Building
Black Hat Link Building
Black hat link building refers to link building strategies utilized by actors who attempt to rank higher in search results by exploiting backlinks.
Link Building
Link Farm
Websites that contain a large number of irrelevant links are called link farms.
Link Building
Negative SEO
Any malicious and unethical practice aimed at sabotaging the search rankings of a competitor's website.
Link Building
Spam Link
Artificial, bad, or manipulative links are called spam links.