Analyze the impact of crawler crawling from internal causes

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A website only crawler crawl, can be included, have snapshots, have rankings. So search engine crawler to the site's crawl situation directly determines the success or failure of a website SEO. Today the author from the site itself to analyze those factors will affect the search engine crawler crawling:

1, web site Speed Impact crawler Access

Engine room DNS server-cdn-export bandwidth--hardware-operating system-Server Software-Program

The location of the machine room: better choose the line near the crawler

DNS server: Hot, stable (recommended dnspod)

CDN: When doing Web log analysis, remember to count in

Export bandwidth: Avoid with large flow of the site with the computer room

Hardware: High-configuration with affordable

Operating system: Recommended Linux, stable security

Procedures: safe, efficient, consistent with the standards of the Consortium

2, the use of nofollow tag control crawler crawl

Nofollow is telling the search engine not to track not to pass weights to this link.

Nofollow off each page repeat the link and the SEO worthless pages, reduce the crawler repeatedly crawl each page redundant links, improve crawler crawl rate, increase the crawl of important pages.

How to use: Rel= "nofollow"

3. Other factors affecting crawler crawling

Firewall rules, anti-attack settings, anti-capture rule settings. Some sites for the site security, frequent multiple visits after the automatic disconnection, may cause the crawler was rejected.

Hard disk Speed: In many cases, some friends will partition the server hard disk, separate the disk for other testing purposes. As a result, the speed of the hard disk is slow and the speed of crawler is affected.

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