Technical SEO optimises the technical part of your website. And it requires a budget for some aspects of it.

This aspect of SEO focuses on ensuring that search engine crawlers can efficiently access, index, and understand your site. Here are the key elements of technical SEO:

1. Crawlability: Use a robots.txt file to control which parts of your site should not be crawled. Ensure that important pages are not blocked and that there are no crawl errors in your Google Search Console.
2. Sitemap: Submit your XML sitemap to search engines. This file provides a roadmap of your website's structure, helping search engines understand its organisation and hierarchy.
3. Website Speed: Optimise your website's loading speed. Faster-loading pages contribute to a better user experience and can positively impact search engine rankings. Compress images, leverage browser caching, and use Content Delivery Networks (CDNs) to improve speed.
4. Mobile-Friendliness: Google flip flops on mobile are a ranking factor, but users on mobies will vote with tier feet if your site is not responsive.
5. SSL Certificate: Implement an SSL certificate to secure your website with HTTPS. This enhances security, and Google also considers HTTPS as a ranking factor. Secure websites are favoured over non-secure ones in search results.
6. Structured Data Markup (Schema Markup): Implement schema markup to provide more info to search engines about the content on your pages. Structured Data Markup can help with rich snippets and enhanced search results, making your content more appealing to users.
7. Canonical Tags: Use canonical tags to show the preferred version of a page if duplicate content exists. Canonical tags help prevent issues with duplicate content and help search engines know which page to index.
8. URL Structure: Create a clean and SEO-friendly URL structure. Use descriptive, readable URLs that include relevant keywords. Avoid using parameters and symbols that don't contribute to understanding the page content.
9. 404 Error Page: Customise your 404 error page to provide a user-friendly experience when visitors encounter broken links. Include navigation options and links to help users find relevant content.
10. Robots Meta Tags: Use meta tags to control how search engines index specific pages. For example, you can use the "no index" tag to prevent certain pages from being included in search engine results.
11. Header Response Codes: Regularly check and monitor server header response codes. Ensure that your server returns the correct status codes (e.g., 200 OK, 301 Redirect, 404 Not Found) to indicate the status of requested pages.
12. ALT Tags for Images: Use keyword rich alt tags for images to help search engines understand the content of the images. Alt tags improve accessibility for users with disabilities.
13. Hreflang Tags (Multilingual SEO): If your website has multiple language versions, use hreflang tags to indicate to search engines which language version need to be shown to users based on their location and language settings.
14. Pagination: Implement proper pagination tags, such as rel="prev" and rel="next," for paginated content. This helps search engines understand the structure of paginated pages and avoid potential duplicate content issues.

Regularly audit and monitor your website's technical health to ensure it remains optimised for search engines. Technical SEO is an ongoing process that requires a budget; staying informed about industry best practices and search engine updates is crucial.