If your domain authority has not changed despite adding your website to directories, there could be several reasons for this:
Time Frame: Domain authority changes can take time to reflect, especially if your website has recently been added to directories. It may take several weeks or even months for search engines to crawl and index the new backlinks from these directories.
Quality of Directories: Not all directories are created equal. If the directories you've added your website to are low-quality or spammy, they may not have a significant impact on your domain authority. Focus on submitting your website to reputable directories that are relevant to your industry or niche.
Quantity vs. Quality: While it's important to have a diverse backlink profile, quality is more important than quantity. A few high-quality backlinks from authoritative directories will have a greater impact on your domain authority than numerous backlinks from low-quality directories.
Other Factors: Domain authority is influenced by a variety of factors, including the quality of your website's content, the relevance of your backlinks, the age of your domain, and more. Adding your website to directories is just one aspect of improving your domain authority.
Algorithm Updates: Search engine algorithms are constantly evolving, and changes in domain authority may not always be directly tied to your actions. Keep an eye on your website's performance and continue to focus on creating high-quality content and acquiring relevant backlinks over time.
If you've added your website to directories and are still not seeing a change in domain authority, it may be helpful to conduct a comprehensive SEO audit to identify any potential issues or areas for improvement. This could involve analyzing your website's backlink profile, optimizing on-page SEO elements, improving content quality, and more.