Top Technical SEO Interview Questions and Answers for 2025

Over time it has become evident that On page SEO is still a very important part of the online marketing mix as the online space continues to expand. By 2025, the field will become even more developed with new tools, algorithms, and the best practice for each year in the field of SEO website optimization. In this article, we included the main questions you may be asked during the technical SEO interview in 2025 and their answers for you to succeed.

1. How do you approach optimizing a website for Core Web Vitals in 2025?

Another ranking aspect is still CWV that targets aspects such as LCP, FID, and CLS, all regarding the overall user experience. If I began in 2025 I would first conduct an audit of the website through the help of tools such as Google Search Console, Lighthouse, and other available tools online. The implication for LCP includes reducing images sizes, employing future formats such as AVIF, and adopting lazy loading. For FID, will cut down the time taken by javascript and delay the unnecessary scripts. For the improvement of CLS, I would set appropriate media dimensions and refrain from dynamically inserting content.

2. What strategies would you use to optimize for voice search in 2025?

The optimization of voice search mostly depends on natural language processing and conversational keywords. Specifically for my focus keyword, I would use long-tail keywords and produce some content in the form of frequently asked questions that could be answered in a few words. As for semantics for search, structuring the data with the help of Schema.org is crucial for understanding the context by searching machines. Also, I would make sure that the website is optimized for mobile devices and that one can navigate the site with ease, since most of the voice searches are conducted through mobile phones.

3. How do you handle JavaScript-heavy websites for SEO?

For web applications with intensive JavaScript codes, I would use SSR or dynamic rendering to have a proper rendering. I would also consider Googles JavaScript SEO best practices for example; avoiding to load critical elements through JavaScript and having proper links, among others. These tools are Googles URL Inspection Tool and Mobile-Friendly Test, and it is very important that they are used to check the site frequently in order to look for rendering problems.

4. Whats your process for conducting a technical SEO audit?

• This site audit could be done with tools that include Screaming Frog or Sitebulb where one can identify problems such as broken link, duplicated content, crawl errors and the likes.
• When you have identified that the site is well designed, proceed to determine the site capabilities for speed and performance using Lighthouse or GTmetrix.
• Check for errors in robots.txt file and XML map.
• During a basic check, ensure that the components of structured data and meta tags were implemented correctly.
• Categorize and analyze mobile usability and CWV.

5. How do you stay updated with the latest SEO trends and algorithm changes?

As for the blogs that I regularly read, these are Search Engine Journal, Moz, and Google Webmaster Central blogs. Indeed, I am active in SEO groups on such platforms as Twitter and LinkedIn and watch webinars, as well as try various instruments and approaches. To this effect, a continuous learning process is the only technique that one may employ in this evolving industry.

6. Whats your approach to international SEO in 2025?

In the international SEO, I would apply hreflang tags pointing to the language and region. I would also employ region-specific content and guarantee proper geospecific SEO (such as ccTLDs and subfolders). Moreover, I would focus on Off page SEo and use such tools as Google Market Finder to make proper choices.