Member Avatar for willson1

indexing , how it is differ from cache

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A short, practical add-on to what and started: indexing and caching are related but used for different jobs inside a search engine. The index is the engine’s working dataset of signals about a URL (words, structured data, links, canonical choices and other bits used to find and rank results). A cached snapshot is a dated copy of what the engine retrieved at crawl time; it’s kept so the engine can show a stored view or serve a fallback if the live page is unavailable.

To control each behavior you need different directives. Prevent a page from appearing in search results with a meta robots noindex or an X-Robots-Tag HTTP header. Stop engines from keeping a cached copy with noarchive. Don’t rely on robots.txt alone to stop indexing — if you block crawling you may prevent the engine from seeing your noindex tag, which can leave a URL listed without page content.

Example meta tag (HTML):

<meta name="robots" content="noindex, noarchive">

Example HTTP headers (for non-HTML files or server-level control):

X-Robots-Tag: noindex, noarchive
Cache-Control: no-store, no-cache, must-revalidate

Quick troubleshooting tips: use Search Console (or your engine’s webmaster tools) and server logs to see crawl/index activity. Use site: and cache: operators to inspect what’s indexed and what snapshot is stored. If sensitive or outdated content appears in a cache, apply noarchive, remove or update the live content, and request recrawl/removal through the search engine’s tools.

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Member Avatar for Dani

When a spider indexes your site, it crawls its content to include in its index so it can be searchable. Optionally, search engines will store a cached version of each page in their index. Keep in mind that when a search engine caches a copy of a page, it's different from your browser's cache that caches local copies of files to speed up browsing the web.

Member Avatar for mike00

what is differance between indexing and cache , i understan from your this post that cache is picture of page and what about indexing

Member Avatar for Dani

When a search engine spider indexes a page, it crawls it and puts all the necessary information about it into its database (aka its index). Indexed pages are the pages that the search engine knows about and can show as search results.

Member Avatar for willson1

Mean to say index is the process in which serch engine boot save your page in data base ????? i am wright

Member Avatar for mike00

Yes idex means save the quarry in data base and cache means save the picture of your page in data base

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