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201. Glossary

     Headline Optimisation

     Headline optimisation is the practice of writing article and page titles that are clear, accurate and appealing enough to earn a click – balancing curiosity or a promised benefit against the …

     glossar › content-marketing-redaktion › headline-optimierung
202. Glossary

     Heatmaps & Session Recordings

     Heatmaps visualise in aggregate where users click, scroll or linger on a page, while session recordings replay individual, pseudonymous visits as a video-like sequence. Both methods add a qu …

     glossar › analytics-conversion-optimierung › heatmaps-session-recordings
203. Glossary

     High-Risk AI System

     A high-risk AI system is an AI system that the EU AI Act regulates particularly strictly: either as a safety component of a regulated product under Annex I, or because it is used in one of t …

     glossar › kuenstliche-intelligenz › hochrisiko-ki-system
204. Glossary

     Honeypot (Spam Protection Without Captcha)

     A honeypot is a form field that is invisible to people but reachable for automated form bots; if it is filled in, that gives away a bot script, without real users having to solve a captcha.

     glossar › datenschutz-recht › honeypot-spamschutz
205. Glossary

     HowTo (schema.org)

     The schema.org type HowTo is used to mark up step-by-step instructions in a structured way. It brings practically no visibility in Google Search any more, since Google discontinued the corre …

     glossar › strukturierte-daten › howto
206. Glossary

     hreflang

     The hreflang attribute is an HTML or HTTP header declaration that website operators use to mark language-specific or country-specific variants of a page, so that search engines show users th …

     glossar › seo-content › hreflang
207. Glossary

     HTML Heading Structure (H1–H6)

     The HTML heading structure uses the tags H1 to H6 to define the hierarchical organisation of the content on a web page, from the top-level H1 down to subordinate subheadings. It provides vis …

     glossar › seo-content › html-ueberschriftenstruktur
208. Glossary

     HTTP Status Codes (2xx/3xx/4xx/5xx)

     HTTP status codes are three-digit codes with which a server answers a browser request, and their first digit sets the category: 2xx stands for success, 3xx for redirects, 4xx for client erro …

     glossar › web-performance-technik › http-statuscodes
209. Glossary

     HTTP/3 (QUIC)

     HTTP/3 is the latest version of the HTTP protocol for transferring web content. It is based on QUIC, a transport protocol originally developed by Google and now established as an open intern …

     glossar › web-performance-technik › http3-quic
210. Glossary

     Hyperlocal Marketing

     Hyperlocal marketing targets an even tighter geographic area than ordinary local marketing – a particular neighbourhood, a single street or a radius of a few kilometres – and is often used b …

     glossar › local-seo-sichtbarkeit › hyperlocal-marketing