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一、robots文件的作用1. robots文件是搜索引擎蜘蛛（Robot）在網(wǎng)站上進行爬取時遵守的一個協(xié)議。robots 文本應該包含User-agent字樣:
一、robots文件的作用
1. robots文件是搜索引擎蜘蛛（Robot）在網(wǎng)站上進行爬取時遵守的一個協(xié)議。
十載的古城網(wǎng)站建設經(jīng)驗，針對設計、前端、開發(fā)、售后、文案、推廣等六對一服務，響應快，48小時及時工作處理。全網(wǎng)營銷推廣的優(yōu)勢是能夠根據(jù)用戶設備顯示端的尺寸不同，自動調(diào)整古城建站的顯示方式，使網(wǎng)站能夠適用不同顯示終端，在瀏覽器中調(diào)整網(wǎng)站的寬度，無論在任何一種瀏覽器上瀏覽網(wǎng)站，都能展現(xiàn)優(yōu)雅布局與設計，從而大程度地提升瀏覽體驗。創(chuàng)新互聯(lián)從事“古城網(wǎng)站設計”,“古城網(wǎng)站推廣”以來，每個客戶項目都認真落實執(zhí)行。
2. 它能夠告訴搜索引擎哪些頁面可以被爬取，哪些不能，也就是說它允許我們對搜索引擎機器人進行權限分配。
3. 通過robots文件我們可以顯式地聲明要隔離出去的目錄或者文件，否則會浪費大量帶寬耗時把不必要的內(nèi)容都加入到數(shù)據(jù)庫中。
4. 此外robots文件還能夠幫助你將特定頁面標注為“noindex”, 這樣就不會出現(xiàn)在Google 等搜索引擎中。
二、如何使用robots文件改善SEO?
1. 首先要正確生成并放好robots文件: robots 文本應該包含User-agent字樣, User-agent字樣之后是*(通配)代表所有機器人; Disallow字樣之后是想要隔離出去的相對URL; Allow字樣之后是想要允許通行的相對URL; Sitemap 字樣之后是sitemap 的url地址。
2. 對已有內(nèi)容重寫: 有時因為前端代理問題, 某些內(nèi)容會造成重復, 這時就可使用Disallow來避免重復內(nèi)容出來影響seo效果;
3. 針對版規(guī)保留版權信息: 有很多版權信念都會針對性地使用Allow/Disallow方法將版權信念隔集出去;
4. 針對404 Not Found : 404 Not Found也會造成seo問題, 這時也可使用Disallow方法將404 Not Found隔集出去; 5 . 加速Crawl Rate : Crawl Rate即下一此crawler掃回web server所耗時時間 , 大部分search engine crawler都依循robot protocol , robot protocol裡包含Crawl Delay , Crawl Delay即crawler delay time , search engine crawler依循delay time來調(diào)整crawler rate ; 6 . Robots Meta Tag : Robots meta tag與Robot Protocols意思已然極相近 , Robot Protocols舊機動protocols (HTTP 1 . 0 ) ， Robots meta tag則舊HTML 4 . 0 standard裡meta tags element ; 7 . Nofollow Link Attribute : nofollow link attribute剩nofollow link attribute value ‘rel = nofollow' ， rel = nofollow value告訴search engine crawlers不要傳遞link juice (PageRank) 給target page ; 8 . Canonicalization : canonicalization即canonical URL ， canonical URL能幫助search engine crawlers正常indexing web pages by avoiding duplicate content issues and other SEO problems caused by multiple URLs pointing to the same page or resource on a website ; 9 . XML Sitemaps : XML sitemaps help search engines discover all of your site's pages quickly and easily so that they can be indexed properly in the SERPs (Search Engine Results Pages). It also helps you keep track of which pages are being crawled and how often they're being crawled so that you can make sure your most important pages are getting indexed first.; 10.. HTTP Headers & Status Codes: HTTP headers & status codes provide additional information about a webpage such as its language encoding type, last modified date etc., which helps search engines better understand what kind of content is present on the page and whether it should be included in their index or not.; 11.. Structured Data Markup: Structured data markup is code added to HTML documents that provides more context about specific pieces of content on a webpage such as product reviews or ratings etc., which makes it easier for search engines to understand what kind of information is present on the page and how it should be displayed in the SERPs.; 12.. Image Optimization: Images play an important role in SEO because they help attract visitors to your website from image searches but if images aren't optimized correctly then they won't show up in image searches at all! To optimize images for SEO purposes you need to ensure that each image has an appropriate file name, alt text description and size before uploading them onto your website.; 13.. Page Speed Optimization: Page speed optimization involves making changes to both frontend code (such as minifying CSS & JavaScript files) as well as backend code (such as optimizing database queries) so that webpages load faster for users visiting them from different devices & browsers.; 14.. Mobile Friendly Design: Mobile friendly design ensures that websites look good when viewed from mobile devices such smartphones & tablets by using responsive design techniques like fluid grids & media queries etc., which allows webpages to automatically adjust their layout depending upon screen size without having any impact on usability or functionality
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新聞名稱：怎么利用robots文件做好網(wǎng)站優(yōu)化讓蜘蛛更好的抓取網(wǎng)站?
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