101 Articles No Script and No Embed Tag
NO SCRIPT / NO EMBED TAGS
Abusing NOSCRIPT tags is another way to place hidden content within a page so that the search engines will index it, but the visitor won't see the content. NOSCRIPT tags are also a valid optimization method for displaying an alternative representation of JavaScript content. The NOSCRIPT tag is not unethical by itself, only if misused.
JavaScript is one of the most useful coding to display client site page reactions to the users. JavaScript has become very important these days. JavaScript was ignored in olden days while writing a webpage, because many browsers tend to avoid from crawling. Scripts confuse browsers and many lower level browsers cannot understand JavaScript. But as the browsers became more sophisticated JavaScript started to play a vital role when it comes to websites. AJAX is the latest JavaScript used by 1000s of websites. In Search engine optimization industry JavaScript has been a no-no for a long time. If you go to any SEO professional he will say JavaScript should be ignored or should be avoided using other methods.
Leading search engine crawlers like Google, Yahoo, and BING ignore JavaScript for the very reason; it cannot go through the loops and get caught. In scripts we always use for/if / while loops etc., it's the same in JavaScript. About 10 years ago, when the crawlers were not so sophisticated and when they tried to crawl these JavaScript's, they get caught in the look and sometimes this will lead to crashing of the server. This is one main reason, why search bots avoid crawling JavaScript.
Also crawling JavaScript takes away significant amount of their resources. Since the search engines cannot read JavaScript, the NOSCRIPT tags were used. Imagine a site without any other code other than JavaScript? It's obvious that search engines cannot crawl that website. To make the search engines understand the webpage or an alternative navigation across the site, we use a noscript tag. Search engines are programmed to read the content within the noscript tag. Search engine spammers take advantage of this and will stuff the tag with lots of keywords, they want to rank for.
Another big advantage for the SEO spammers is that the Noscript tags are not visible to the users. Similar to the noframes tag, noscript tags hide the content within it from the users. Search engines have become increasingly efficient in detecting these tags. Stuffing keywords in NOSCRIPT tags is unethical. Imagine if your users are looking at your source code and they see keywords stuffed inside the tag, if a competitor reports you to Google and if their algorithm cannot detect the spam automatically and they see you're spamming in a manual review, suddenly your site pops up for unrelated keywords you have stuffed inside the tag and people cannot find what they were looking for on your website. Noscript tags are bad, only if misused. It can also be a very valid representation of what you have in your JavaScript in a search engine friendly way.
Noembed tags are used similar to Noscript tags. We use embed tags to add videos or other animated media to a webpage. Search engines rarely crawl stuff inside noembed tag, for this we use the noembed tag to make the search engines understand what is inside the embed tag. We can add both contents and links in noembed tag.
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Screen Shots |
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Source Code |
Noscript code:
Noembed code:
Here you can see the example where a link has been mentioned inside noembed tag to make the search engine understand the media link inside the embed tag. Search engine spammers use this tag too. To abuse the search engines they stuff irrelevant links and keywords to gain unfair advantage in search engines.
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Working Example |
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Other sites that refer to the same manipulation tactic are as follows |