An XML sitemap lists a site’s URLs for search engines to discover. Keep it up to date and submit it to Google Search Console to improve crawl coverage.
Read MoreThe X-Robots-Tag is an HTTP header that controls indexing and serving of non-HTML files (like PDFs). Use it to apply noindex or nofollow at the server level when needed.
Read MoreHTTP header: nosniff. Security best practice. Prevents browsers from MIME-sniffing incorrectly. Protects SEO assets like JS/CSS from being misinterpreted.
Read MoreHTTP response header that prevents clickjacking by controlling iframe embedding. SEO impact: Can block embedding of your pages → reduces link equity via embeds.
Read MoreExtends robots.txt directives to individual file-level instructions via headers. Useful for media SEO (images, videos, PDFs).
Read MoreHTTP header version of meta robots. Allows controlling indexation for non-HTML files (PDFs, images, video). Example: X-Robots-Tag: noindex, nofollow
Read More“X-Logs” shorthand in academic IR papers for experimental search logs. Used in query modeling, click-through studies.
Read MoreLegacy IE header for rendering mode. SEO tie-in: Improper use could break rendering for crawlers if fallback HTML fails.
Read MoreSSL/TLS certificates based on X.509 standard. Core to HTTPS (ranking signal, trust, crawl integrity).
Read MoreExplainable AI techniques (e.g., SHAP, LIME) applied to ranking models. Useful for SEO research to understand why Google ranks a page higher/lower.
Read MoreA probabilistic IR library used in research/enterprise retrieval. Relevant for SEO pros exploring IR fundamentals beyond Lucene/Elastic.
Read MoreSome sites use obfuscation for JS (sometimes called “xenocode”). SEO issue: If Googlebot fails to render obfuscated JS, content may be missing from index.
Read MoreA rare ranking function from academic literature. Explores weighted term distributions + document priors.
Read MoreGradient boosting framework widely used in search ranking competitions & SEO tools. Example: LambdaMART + XGBoost still baseline for some search systems.
Read MoreStrict XML-based version of HTML. SEO tie-in: Some older sites still serve XHTML → must check for crawl/indexing issues if served with wrong MIME type.
Read MoreUsed in XML documents for defining hyperlinks. Rare but relevant in sitemaps & structured data formats.
Read MoreFile (sitemap.xml) that lists URLs for crawling. Critical for large sites, new content discovery, canonical hints, and crawl efficiency. Supports priority, frequency, lastmod.
Read MoreRemote procedure call protocol in XML. On WordPress, can be abused in spam attacks → indirect SEO risks (server overload, crawlability).
Read MoreXML-based standard for embedding metadata in PDFs, images, videos. Helps with file SEO (PDF ranking, image indexing, Google Images).
Read MoreBoolean retrieval operator (exclusive OR). Rarely used directly, but appears in legacy IR systems and query rewriting engines.
Read MoreQuery language for navigating XML docs. SEO use: Scraping SERPs, structured data extraction, and log analysis pipelines.
Read MoreXPath navigates XML/HTML document structures for scraping and analysis. Use XPath selectors in crawling tools to extract specific elements, monitor competitor changes, and automate SEO audits.
Read MoreMore powerful than XPath for querying XML. Technical SEO → sometimes used in advanced data extraction workflows for big XML-based sitemaps.
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