What is Crawler?
A crawler is an automated program used by search engines to systematically browse and analyze web pages, collecting information for indexing and ranking purposes.
Ecommerce SEO Glossary > General SEO > Crawler
What You Need to Know about Crawler
Different Crawler Types
Major search engines use distinct crawlers like Googlebot, Bingbot, and specialized mobile crawlers with varying capabilities.
Crawling Frequency Varies
High-authority sites with fresh content get crawled more frequently than static or low-authority websites.
User-Agent Identification
Crawlers identify themselves through user-agent strings, allowing webmasters to track and optimize for specific bots.
JavaScript Rendering Capability
Modern crawlers can process JavaScript, but execution delays may impact how dynamic content gets indexed.
Crawl Rate Limitations
Search engines throttle crawling speed to avoid overloading servers while still gathering necessary site information.
Robots.txt Compliance
Ethical crawlers respect robots.txt directives, although malicious bots may ignore these crawling guidelines completely.
Frequently Asked Questions about Crawler
1. How can I see which crawlers visit my site?
Check server logs or use tools like Search Console to monitor crawler activity and identify patterns.
2. Do all crawlers render JavaScript the same way?
No, crawler JavaScript capabilities vary significantly between search engines and can affect dynamic content indexing.
3. What’s the difference between crawling and indexing?
Crawling discovers and analyzes pages while indexing stores processed information in searchable database formats.
4. How do I control crawler access to my site?
Use robots.txt files, meta robots tags, and server configurations to guide crawler behavior effectively.Retry
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