Technical SEO

Dynamic URL

Shahid Maqbool

By Shahid Maqbool
On Jul 10, 2023

Dynamic URL

What is a Dynamic URL?

A dynamic URL is a web page address that is generated by a database-driven website or web application in response to a user's request. 

These URLs often include variables or parameters that are used to retrieve specific content from the database and display it on the web page.

For example, a dynamic URL might include a parameter that specifies the ID of a particular product, category, or user profile, like this:

When a user clicks on this URL, the website's server uses the ID parameter to query the database and retrieve the corresponding product information, which is then displayed on the web page.

Why are dynamic URLs important?

Dynamic URLs are important for websites that have a large amount of content or a complex structure because they allow for more efficient data retrieval and organization. 

With dynamic URLs, the website can generate web pages in real-time based on the user's request, allowing for more targeted and personalized content.

Dynamic URLs are also important for e-commerce websites, where product listings and pricing may change frequently.

Using dynamic URLs allows these websites to update their content without having to manually create and publish new web pages for each product or price change.

In addition, dynamic URLs can make it easier for websites to track user activity and gather data for analytics purposes.

By including variables or parameters in the URL, websites can track which pages users are visiting, which products they are interested in, and other information that can be used to improve the user experience and optimize website performance.

Are dynamic URLs crawled?

Yes, dynamic URLs can be crawled by search engines. However, search engines may have difficulty crawling and indexing them if they contain complex parameters or session IDs.

Therefore, Google has assured webmasters that it is working and will work more on this issue and make the indexing and crawling better for both dynamic and static URLs.

Difference between dynamic and static URLs

The main difference between dynamic and static URLs is that the dynamic URLs contain variables or parameters that are generated in real-time in response to a user's request.

In contrast, static URLs have a fixed structure and do not change.

Here are some of the key differences between dynamic and static URLs:


Dynamic URLs have a complex structure that often includes variables or parameters, while static URLs have a simple, easy-to-remember structure.

Here are some examples of dynamic and static URLs:

Dynamic URLs:




In each of these examples, the URL includes variables or parameters that are generated dynamically based on user input or database queries.

The variables (id, name, page, query, and price) generate unique content and display it to the user.

Static URLs:




In contrast to dynamic URLs, static URLs have a fixed structure and are often used for website pages that don't require dynamic content.

Search engine optimization

Static URLs are generally more search engine-friendly than dynamic URLs because they have a fixed structure that search engines can easily crawl and index.

Dynamic URLs can be more difficult to crawl and index, which can affect a website's search engine rankings.

User experience

Static URLs are typically easier for users to remember and share than dynamic URLs, which can improve the overall user experience.

Dynamic URLs can be more confusing and difficult to remember, which can affect user engagement and retention.


Dynamic URLs are often more vulnerable to security threats than static URLs because they are generated in real-time and can be manipulated by attackers. Static URLs are less susceptible to manipulation and hacking attempts.


Dynamic URLs can put a strain on server resources and affect website performance if the website has a large amount of traffic or if the database is not optimized to handle dynamic content.

Static URLs are generally more scalable and can handle large amounts of traffic without affecting website performance.

Disadvantages of dynamic URLs

Dynamic URLs can have several disadvantages, including:


Dynamic URLs can be more complex than static URLs, often including long strings of parameters and variable values that can make them difficult to understand and remember.

Duplicate content

Dynamic URLs can often generate multiple versions of the same page with different parameter values, which can result in duplicate content issues that can hurt search engine rankings.

Crawling issues

Search engine crawlers may have difficulty crawling dynamic URLs because of the complex parameter strings and dynamic content, which can result in pages being left out of search results.

Security issues

Dynamic URLs can be vulnerable to security threats such as SQL injection attacks, which can exploit vulnerabilities in the parameter strings and compromise website security.

Poor user experience

Complex and confusing dynamic URLs can lead to a poor user experience, making it difficult for users to navigate and understand website content.

Lack of informative structure in dynamic URLs

Dynamic URLs can be difficult for users to read and understand, as they often include long strings of parameters and variable values.

This can make it harder for users to determine the relevance of the page to their search query and may discourage them from clicking on the link.

Lower click-through rates than their static counterparts

Because dynamic URLs can be confusing and difficult to understand, they may have lower click-through rates (CTRs) than static URLs. This can result in lower traffic and fewer conversions for the website.

Backlink issues with dynamic URLs

Dynamic URLs can cause problems with backlinks, as the parameters and variable values can change over time or between different users. This can result in broken or inaccurate backlinks, which can hurt the website's search engine rankings and authority.

Should I replace the dynamic URLs with static ones?

No, It is not necessary to replace dynamic URLs with static ones for SEO purposes. Modern search engines like Google are quite adept at handling dynamic URLs and can understand and parse URL parameters.

However, if you're considering modifying dynamic URLs, Google provides some key points to consider during the rewriting process. Remember that changes should be approached cautiously to avoid inadvertently harming your SEO efforts.

Serving the original dynamic URL

When it comes to rewriting dynamic URLs to static-looking URLs, it can be challenging to ensure that the rewrites are created and maintained correctly.

This is because dynamic URLs often contain parameters that can change over time, making it difficult to create a fixed set of rewrite rules that will always work.

For this reason, Google recommends that website owners serve the original dynamic URL and let Google's systems handle the detection and avoidance of problematic parameters.

By serving the original URL, you ensure that Google can properly crawl and index your content, without the risk of inadvertently blocking important parameters.

Dealing with dynamic URLs

Removing unnecessary parameters

If you do want to rewrite your URL, it's important to remove any unnecessary parameters while still maintaining a dynamic-looking URL.

This will help ensure that the rewritten URL is still recognizable as a dynamic URL, while still being more search engine-friendly than the original dynamic URL.

Serving a static URL

If you want to serve a static URL instead of a dynamic URL, you should create a static equivalent of your content.

This means creating a separate HTML file for each piece of content that you want to serve, rather than relying on a script to generate the content dynamically. 

This approach can be SEO-friendly as search engines generally find it easier to crawl and index static URLs.

However, it is not always easy or practical. If a website has lots of pages, or if the information on those pages changes often, creating and updating individual static pages can be a big job that takes a lot of time and resources.

Google’s take on the number of parameters in the dynamic URLs

Google has clearly stated that there is technically no limit on the number of parameters that can be included in a dynamic URL, but it's generally a good idea to keep URLs as short and simple as possible, regardless of whether they are static or dynamic.

Shorter, more concise URLs tend to be more user-friendly and easier for search engines to crawl and index.

If you have a dynamic URL with multiple parameters, it's possible that some of those parameters may not be essential for Googlebot to properly understand and index the content on your page.

In such cases, it may be possible to remove some of those parameters to make the URL shorter and simpler.

However, it's important to carefully consider which parameters to remove to ensure that you're not inadvertently hiding important information that could be valuable to search engines.

If you're unsure which parameters to remove, Google recommends leaving all parameters in the URL and allowing their system to figure out which ones are relevant. 

Hiding parameters can make it more difficult for search engines to properly analyze your URLs and could result in the loss of valuable information


The decision to use dynamic URLs depends on the specific needs and goals of the website, and it is important to carefully consider the advantages and disadvantages before making a decision.

By properly optimizing dynamic URLs, website owners can enjoy the benefits of dynamic content while still maintaining strong search engine rankings and providing a positive user experience.

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