With SEO, content, and backlinks often stealing the spotlight, there is a crucial third pillar that quietly supports it all: TECHNICAL SEO. Consider it as the framework behind you’re your website, the spine that ensures search engines can seamlessly crawl, index, and rank your pages.
While on-page SEO focuses on the look and read of your website, off-page SEO builds your website’s authority, and technical SEO makes sure that your website “works” in the eyes of search engines like Google, Bing, Baidu, etc. Surprisingly, technical SEO is one of the most overlooked areas, with many professionals limiting their efforts to basics like submitting a sitemap or adjusting the robots.txt file.
In this blog, we shall dig into the essential technical SEO strategies that often go unnoticed but have a direct impact on your search performance and brand success.
What Falls Under Technical SEO?
Let us break it down into smaller, essential components to understand the role each one plays in improving your website’s performance.

1. Website Crawling and Indexing
- XML Sitemap Creation and Submission: Major search engines like Google and Bing can discover pages without a sitemap; having one is highly recommended. A properly structured XML sitemap (sitemap.xml) acts like a roadmap, helping crawlers quickly and efficiently scan your website through a single entry point.
- Robots.txt File Optimisation: A robots.txt file is used to restrict crawlers from accessing particular areas that contain sensitive or irrelevant data, such as user profiles, internal databases, or staging pages. Blocking these not only protects privacy but also helps optimise crawl efficiency.
- Crawl Budget Optimisation: Search engines allocate a crawl “budget” based on the size and authority of your website. This budget is used to crawl various elements like JavaScript files, images, CSS, videos, and HTML pages. If the budget is wasted on low-value URLs (faceted navigation, filters, or duplicate content), your key pages may not be crawled or indexed as frequently.
- Canonical Tags: Websites can often be accessed via multiple URLs (e.g., with or without “www” or trailing slashes). Canonical tags not only help define the preferred version of a page, but without them, search engines may index duplicates, dilute rankings, and fragment your website’s performance data.
- Noindex and Nofollow Directives: Pages like “Login”, and “Thank you” are important but have no use in search results. Use the noindex tag to keep them out of the SERP. On the other hand, the nofollow tag is used for links pointing to external sites that you don’t want to endorse or pass link equity to.
- URL Structure: A clean, human-readable URL structure benefits the users and the crawlers. It improves the user trust, CTR and crawlability. E.g.
- Good: https://website.com/blog/how-to-optimize-site-speed
- Bad: https://website.com/2022/04/01/category1/post?id=98732$2#content
2. Website Speed and Performance
- Core Web Vitals: Optimising for Core Web Vitals directly influences user experience and SEO performance. The three main Core Web Vitals are: –
- Largest Contentful Paint (LCP): Measures the speed of the visibility of the main content. Optimises images, fast server, and reduces render-blocking resources.
- First Input Delay (FID): Tracks the delay between user interaction and browser response. Reduces JavaScript execution and breaks up long tasks. It is important to note that Google is transitioning FID to Interaction to Next Paint (INP) as the new responsiveness metric (so stay updated).
- Cumulative Layout Shift (CLS): Measures unexpected layout shifts, and defines dimensions for images, videos, ads, and embedded content to stabilise layout during load.
- Page Load Speed Optimisation: Aims for pages to become interactive within 3 seconds. Heavy scripts and stylesheets in the <head> can slow initial rendering.
- Browser Caching: Stores static files like images, CSS, and JS locally on the user’s device. On repeat visits, the browser serves these from the cache instead of re-downloading them, improving load times. The browser checks for updates and syncs if the content has changed.
- Image Optimisation: Google recommends using formats like WebP or AVIF for faster loading. Aim to keep image file sizes under 100KB, as formats like JPEG and PNG can lose quality when compressed too much.
- Lazy Loading: Defers the loading of off-screen images until the user scrolls to them. This reduces initial load time and the number of HTTP requests. However, note that Googlebot is capable of rendering JavaScript and can still crawl lazy-loaded images, as long as they’re implemented correctly.
- Minification: Minification reduces file size by removing unnecessary whitespace, comments, and formatting, leading to faster load times and better performance.
Best practices include:
- Minifying CSS, JS, and HTML.
- Combining multiple CSS/ JS files where feasible.
- Using async or defer for JS to prevent render blocking.
- Moving non-critical scripts to the footer.
- Reducing Server Response Time
Time to First Byte (TTFB) measures the time taken by the browser to receive the first byte of data from the server.
Common causes of high TTFB are:
- Limited server resources
- Slow database queries
- Poor server configuration
- Lack of server-side caching
To improve TTFB:
- Minimise redirects
- Use faster hosting or implement a CDN
- Enable server-side caching
- Optimise database performance
- Load third-party scripts using defer or async
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Use of CDN (Content Delivery Network)
CDNs distribute your website’s static content across a global network of servers. For if your server is in the UK and your audience is also UK-based, a CDN may not make a significant difference. However, for global audiences, CDNs improve speed by serving content from the nearest edge server.
Tools like Cloudflare, Akamai or BunnyCDN can cache your website’s static assets (CSS, JS, images) and serve them from the closest locations to your visitors; reducing latency, improving performance, and boosting Core Web Vitals.
3. Mobile Optimisation
- Mobile Responsive Design: Mobile-first indexing is now the standard; your website must offer a seamless experience across all device sizes. A responsive design ensures that your website automatically adjusts its layout, images, and content to fit mobile, tablet, and desktop screens without compromising usage or aesthetics.
- Touch-Friendly Elements: According to Google’s Mobility Usability report in Search Console, on smaller screens, clickable elements like CTA buttons, links, and forms must be adequately spaced and sized. Elements placed too small or close together frustrate users and lead to higher bounce rates.
- Viewport Configuration: The viewport meta tag helps control the layout on mobile browsers. A properly configured viewport (<meta name=”viewport” content=”width=device-width, initial-scale=1″>) ensures that users don’t need to pinch and zoom to read your content.
- Avoiding Intrusive Interstitials: Popups or interstitials, covering a large portion of the content on mobile devices, leading to penalties from Google. Make sure modals or popups (sign-up forms/ promotions) are implemented in a non-intrusive manner.
4. Secure & Accessible Website
- HTTPS Implementation (SSL Certificate): Security is a ranking signal. Serving your website over HTTPS with a valid SSL certificate ensures that data between users and the server is encrypted. Always redirect HTTP to HTTPS and renew your certificates regularly.
- Fixing Mixed Content Issues: Even if your website is served over HTTPS, embedded resources like images, scripts, etc., served over HTTP can create security warnings. Always update internal resources to use secure URLs.
- Structured Data (Schema.org) for Rich Results: Adding structured data like Schema.org helps search engines understand the content and context of your pages. You can implement markup for articles, products, local businesses, reviews, and more to enhance the appearance of search results.
- Proper Use of Status Code: Correct HTTP status codes are vital for communicating page status to search engines:
200: OK for live pages
301: permanent redirects
302/307: temporary redirects
404: pages that don’t exist
410: Content that has been permanently removed
- Accessibility Improvements: Using HTML and ARIA improves accessibility for screen readers and assistive technologies. This benefits users with disabilities but also improves your website’s overall structure and usability.
5. URL & Site Structure
- SEO- Friendly URLs: Use short, descriptive, and keyword-relevant URLs. Avoid special characters, long string IDs and unnecessary parameters.
- Consistent Trailing Slashes: You choose to use a trailing slash or not, be consistent site-wide, and use 301 redirects to enforce the preferred version.
- Avoid Dynamic Parameters: Clean, static URLs are easier to index and share. If dynamic URLs are required, use canonical tags and URL parameters settings in Google Search Console to help them manage.
- Folders and Subfolders: Organise your website with a folder structure. E.g. https://example.com/blog/seo/technical-seo. This helps the search engines and the user understand the relationship between the content.
- Internal Linking: A good interlinking structure distributes link equity and helps search engines and guides users to discover and index new content efficiently.
- Flat Architecture: A flatter structure enhances crawlability and user experience. Ensure that important content is accessible in 3 clicks from the homepage.
6. Duplicate Content & Canonicalization
- Canonical Tag Implementation: Canonical tags indicate the preferred version of a page. They help prevent duplicate content issues and consolidate ranking signals.
- www vs non-www: Choose either the www or non-www version of your domain and enforce it using redirects and in your canonical tags to avoid duplicate indexing.
- HTTP vs HTTPS: Ensure that only the secure version (HTTPS) of your site is indexed by redirecting all HTTP traffic.
- Duplicate Paginated Content: Paginated series (e.g., page 1, page 2) can result in duplicate content. Use rel=”next” and rel=”prev” tags or a canonical pointing to the view-all page, where applicable.
- Boilerplate Duplication: Avoid repeating identical blocks of text (e.g., legal disclaimers, product descriptions) across pages. If unavoidable, isolate them with technical methods like canonical tags or structured data.
7. Schema Markup
- Blog Posting, Article, Product, FAQ, Local Business Schema: Using relevant schema types to describe your content clearly to search engines enhances CTR by enabling rich snippets in search results.
- Breadcrumb Schema: Implementing breadcrumb schema helps search engines understand your website’s structure and improves the display of URLs in SERPs.
- Review and Rating Schema: Structured data for ratings and reviews makes the listing visually appealing and informative, especially for products, services, or local businesses.
- Validate: Always validate your structured data using tools like Google’s Rich Results Test or Schema Markup Validator to ensure proper implementation.
8. JavaScript SEO
- Rendering and Indexing Content: Search engines can render JavaScript. However, it may delay indexing or miss content if not handled correctly. Use server-side rendering or hydration techniques to ensure important content is accessible.
- Server-Side Rendering (SSR) or Dynamic Rendering: If your website heavily relies on JavaScript, SSR or dynamic rendering ensures search engines receive a fully rendered HTML version, improving crawlability and indexing.
- Pre-Rendering Content: Critical content like titles, descriptions, and primary page text should be visible in the source HTML so search engines don’t have to wait for JavaScript execution.
- Avoid Relying on JavaScript for Critical SEO Elements: Ensuring key elements like internal links, headings, and meta tags are present in the raw HTML and not injected via JavaScript.
9. Log File Analysis
- Analysing Crawl Behaviour: Review your server logs to see the bot interaction with your website, the pages that are crawled and how often.
- Identifying Crawl Waste: Look for bots spending time on low-value pages (filters, login pages). Optimise your crawl budget by blocking or de-prioritising them.
- Finding Uncrawled but Important Pages: Log analysis helps identify high-value pages that aren’t getting crawled. You can improve internal linking or request indexing to correct this.
- Tracking Bot Activity: Monitor Googlebot and other search engine bots to detect anomalies, ensure crawl health, and spot issues like crawl spikes or missed pages.
10. International SEO
- Hreflang Tags Implementation: Use hreflang attributes to indicate language and regional targeting. This helps Google serve the correct version of a page to users based on their location and language.
- Language-Specific Sitemaps: Create separate sitemaps for each language or region and submit them to Google Search Console for better indexing.
- Geotargeting via Google Search Console: For country-specific websites, use the International Targeting report in Google Search Console to set geographic preferences.
- Proper Use of Regional Subdirectories/ Subdomains: Structure multilingual/multi-regional sites using either subdirectories (/us/, /fr/) or subdomains (us.example.com) and ensure each is properly linked and tagged.
11. Technical Audits and Monitoring
- Site Audits: Use tools like Screaming Frog, Sitebulb, Ahrefs, or SEMrush to conduct regular technical audits. These tools uncover issues with indexing, crawling, duplicating content, broken links and more.
- Monitoring Search Console and Bing Webmaster Tools: Closely monitor indexing status, performance, and error reports in Google Search Console and Bing Webmaster Tools as they are key insights to ongoing SEO health.
- Fixing Crawl Errors and Core Web Vitals: Address 404 errors and warnings related to Core Web Vitals, such as LCP, CLS, INP, and redirect chains. Also, regularly check mobile usability and index coverage reports.
- Redirect Audits: Ensure your 301 (permanent) and 302 (temporary) redirects are correctly implemented. Do look out for redirect loops, chains, and unnecessary hops.
- Broken Links Analysis: Identify and fix internal and external broken links, as they can hurt UX and crawl flow.
- Monitoring Server Uptime and Hosting Performance: Use uptime monitors and hosting insights to detect downtime, slow response times, or hosting limitations that could affect SEO performance.
Technical SEO is the backbone of a healthy, high-performing website. While often overlooked, its impact on crawlability, indexability and user experience is undeniable. From website speed to structured data, and mobile optimisation to international targeting, each technical element plays a vital role in your search visibility.
Start with a comprehensive technical SEO audit today with Saifee Creations. Contact us at 07965 480324 or hello@saifeecreations.com
