Noopener And Noreferrer

Noopener and noreferrer are attributes used on links to enhance security and prevent potential vulnerabilities.


Noopener and noreferrer are two attributes that can be added to the HTML <a> tag when creating links. The 'noopener' attribute instructs the browser to open the linked page in a new window or tab without granting it access to the original page's window object. The 'noreferrer' attribute prevents the browser from sending the referrer information to the linked page, which helps maintain privacy and security. These attributes are commonly used together to mitigate potential security risks and protect the integrity of the linking website.

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Usage and Context

Noopener and noreferrer attributes are typically used when linking to external websites or resources that are not under the control of the linking website. By using these attributes, webmasters can prevent potential security vulnerabilities, such as reverse tabnabbing, where a linked page may manipulate the original page's window object. Additionally, using the noreferrer attribute helps protect user privacy by not revealing the referring page to the linked website. These attributes are particularly important for SEO professionals, as they ensure that outbound links do not negatively impact the linking website's security, user experience, or search engine rankings.


  1. What is the purpose of the noopener attribute?

    • The noopener attribute prevents the linked page from accessing the window object of the original page, enhancing security and preventing potential vulnerabilities like reverse tabnabbing.
  2. How does the noreferrer attribute help with SEO?

    • The noreferrer attribute protects user privacy by not sending referrer information to the linked page, which can help maintain the linking website's credibility and avoid potential penalties from search engines.
  3. Should I always use noopener and noreferrer when creating external links?

    • It is generally recommended to use both noopener and noreferrer attributes when linking to external websites to ensure optimal security and privacy for your website and its users.
  4. Do noopener and noreferrer attributes affect link equity transfer?

    • No, using noopener and noreferrer attributes does not impact the link equity transfer from the linking page to the linked page, as search engines still recognize and credit the link.
  5. Can I use noopener and noreferrer attributes for internal links?

    • While it is not strictly necessary to use noopener and noreferrer for internal links, applying these attributes consistently across all links can simplify your code and maintain a uniform approach to link security.


  1. Enhanced Security: Protects the linking website from potential vulnerabilities and attacks, such as reverse tabnabbing, by preventing linked pages from accessing the original page's window object.
  2. Improved User Privacy: Ensures that referrer information is not sent to the linked page, maintaining user privacy and preventing potential tracking or misuse of data.
  3. Better User Experience: Opens links in a new window or tab without disrupting the user's browsing experience on the original page, leading to increased engagement and satisfaction.
  4. Maintains Link Equity: Does not affect the link equity transfer from the linking page to the linked page, ensuring that search engines still recognize and credit the link.
  5. Demonstrates Best Practices: Shows search engines that the website adheres to best practices for security and user privacy, potentially contributing to improved trust and rankings.

Tips and Recommendations

  1. Consistently Use Attributes: Apply noopener and noreferrer attributes consistently across all external links to maintain a uniform approach to link security and privacy.
  2. Audit Existing Links: Regularly review and update existing external links on your website to ensure they include the noopener and noreferrer attributes.
  3. Educate Team Members: Train content creators, developers, and other team members on the importance and proper usage of noopener and noreferrer attributes to ensure consistent implementation.
  4. Monitor Link Performance: Track the performance of external links with noopener and noreferrer attributes to ensure they are not negatively impacting user experience or search engine rankings.
  5. Stay Updated: Keep abreast of any updates or changes to best practices regarding link attributes and adjust your strategy accordingly to maintain optimal SEO and security.


Noopener and noreferrer attributes play a crucial role in maintaining the security, privacy, and integrity of a website when creating external links. By preventing potential vulnerabilities and protecting user privacy, these attributes contribute to a better user experience and demonstrate adherence to best practices in the eyes of search engines. As an SEO professional, consistently implementing noopener and noreferrer attributes across all external links should be an essential part of your overall strategy to ensure optimal performance and maintain the trust of both users and search engines.