Technical SEO glossary terms.

Technical SEO 301 redirect 301 redirect is an HTTP status code that affects how browsers, crawlers and search engines interpret a URL response. Technical SEO 302 redirect 302 redirect is an HTTP status code that affects how browsers, crawlers and search engines interpret a URL response. Technical SEO 304 Not Modified 304 Not Modified is an HTTP response code that tells a browser or crawler a previously requested resource has not changed and can be reused from cache. Technical SEO 404 error A 404 error means the requested URL could not be found on the server, usually because the page was deleted, moved or linked incorrectly. Technical SEO 410 Gone 410 Gone is an HTTP status code that tells crawlers a URL was intentionally removed and is not expected to return. Technical SEO 5xx Server Error A 5xx server error is a server-side HTTP failure that prevents users and crawlers from reliably accessing a page or resource. Technical SEO API Crawl An API crawl collects website or platform data through an API rather than by visiting pages like a traditional web crawler. Technical SEO Article Schema Article Schema is structured information that helps search engines understand page entities, content types and relationships. Technical SEO Automated Schema Markup Automated Schema Markup is structured information that helps search engines understand page entities, content types and relationships. Technical SEO Blog post A blog post is an individual article published in a blog, usually written to answer a question, explain a topic, build authority or support organic acquisition. Technical SEO Blog SEO Blog SEO is a practical SEO term used to describe a specific website signal, workflow or optimization area that can influence organic visibility. Technical SEO Bot Crawl A bot crawl is the process of an automated crawler requesting pages and resources to discover, inspect or index website content. Technical SEO Breadcrumb Schema Breadcrumb Schema is structured information that helps search engines understand page entities, content types and relationships. Technical SEO Browser Rendering Browser rendering is the process of turning HTML, CSS, JavaScript and assets into the visual page that users and some crawlers evaluate. Technical SEO Cache Control Cache-Control is an HTTP header that tells browsers and intermediaries how long resources may be stored and reused before being requested again. Technical SEO Cache headers Cache headers are HTTP instructions that control how browsers, crawlers and CDNs store and reuse files such as images, scripts, stylesheets and pages. Technical SEO Canonical Management Canonical Management is about choosing or signaling the preferred URL when duplicate or similar pages can be accessed in more than one way. Technical SEO Canonical tag A canonical tag tells search engines which URL should be treated as the preferred version of a page. Technical SEO Canonical URL Canonical URL is about choosing or signaling the preferred URL when duplicate or similar pages can be accessed in more than one way. Technical SEO Canonicalization Canonicalization is about choosing or signaling the preferred URL when duplicate or similar pages can be accessed in more than one way. Technical SEO Cart crawl control Cart crawl control describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Category canonical Category canonical is about choosing or signaling the preferred URL when duplicate or similar pages can be accessed in more than one way. Technical SEO Checkout crawl control Checkout crawl control describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Client Side Rendering Client-side rendering builds page content in the browser with JavaScript, which can create SEO issues if important content is delayed or unavailable to crawlers. Technical SEO Cloaking Cloaking is a deceptive SEO tactic where users and search engines are shown different content or URLs. Technical SEO Conflicting Sitemap Provider A conflicting sitemap provider is a plugin, theme or system that publishes sitemap URLs that compete with the preferred sitemap source. Technical SEO Content Indexing Content indexing is the process by which search engines store and make webpage content eligible to appear in search results. Technical SEO Core Web Vitals Core Web Vitals are Google metrics that evaluate loading, responsiveness and visual stability. Technical SEO Crawl A crawl is the process of discovering and requesting URLs so a search engine, SEO tool or agent can inspect website content and technical signals. Technical SEO Crawl Anomaly Crawl Anomaly describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Crawl budget Crawl budget is the amount of crawling a search engine is willing and able to spend on a website within a period of time. Technical SEO Crawl Demand Crawl Demand describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Crawl depth Crawl depth is the number of clicks or link steps needed to reach a page from an important starting point such as the homepage. Technical SEO Crawl Diagnostics Crawl Diagnostics describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Crawl Efficiency Crawl Efficiency describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Crawl Errors Crawl errors are problems that prevent crawlers from accessing or processing URLs, such as 404s, server errors, blocked resources or redirect failures. Technical SEO Crawl Frequency Crawl Frequency describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Crawl Optimization Crawl Optimization describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Crawl Path Crawl Path describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Crawl Queue Crawl Queue describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Crawl Simulation Crawl Simulation describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Crawl Space Crawl Space describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO Crawl stats Crawl stats are data about how crawlers access a website, including request volume, response codes, file types, timing and crawl activity. Technical SEO Crawl trap A crawl trap is a URL pattern that creates too many crawlable variations, wasting crawler resources on low-value or duplicate pages. Technical SEO Crawlability Crawlability describes how easily search engines can discover and access website URLs. Technical SEO Crawlability Review Crawlability review checks whether search engine crawlers can discover and access important website URLs. Technical SEO Crawled Currently Not Indexed Crawled Currently Not Indexed is a Google Search Console status meaning Google visited a URL but has not chosen to include it in the index. Technical SEO Crawler A crawler is an automated bot that visits URLs, follows links and collects information for search engines, SEO tools or monitoring systems. Technical SEO Crawler Directives Crawler directives are instructions such as robots.txt rules, meta robots tags and HTTP headers that guide how bots crawl or index content. Technical SEO Crawling Crawling is the process search engines use to discover pages and resources by following links, reading sitemaps and requesting URLs. Technical SEO CSS Optimization CSS Optimization is a practical SEO term used to describe a specific website signal, workflow or optimization area that can influence organic visibility. Technical SEO Custom Schema Custom Schema is structured information that helps search engines understand page entities, content types and relationships. Technical SEO Deep Crawl Deep Crawl describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed. Technical SEO DNS Lookup A DNS lookup resolves a domain name into the server address a browser or crawler needs before it can request the website. Technical SEO Duplicate Schema Duplicate schema happens when multiple sources output repeated or overlapping structured data on the same page. Technical SEO Dynamic Rendering Dynamic rendering serves pre-rendered content to crawlers while users receive JavaScript-rendered content, usually as a workaround for JavaScript SEO issues. Technical SEO Executable Fix An executable fix is a technical or SEO correction that can be applied through the website workflow after approval. Technical SEO FAQ schema FAQ schema is structured information that helps search engines understand page entities, content types and relationships. Technical SEO Fetch And Render Fetch and render is the process of retrieving a URL and rendering it like a browser to inspect what users and crawlers can actually see. Technical SEO Full Site Crawl Full Site Crawl describes how bots discover, request or evaluate website URLs, which affects whether important pages can be found and processed.