1. Two word phrases 28.38 percent
2. Three word phrases 27.15 percent
3. Four word phrases 16.42 percent
4. One word phrase 13.48 percent
5. Five word phrases 8.03 percent
6. Six word phrases 3.67 percent
7. Seven word phrases 1.63 percent
8. Eight word phrases 0.73 percent
9. Nine word phrases 0.34 percent
10. Ten word phrases 0.16 percent

1. If Your website is a very popular site in your niche and getting lots of traffic from search engines, it means that your website URLs are crawled very highly and this makes it easy for scrapers to steal the content and make a MADE FOR ADSENSE(MFA) sites putting your content.

2. Some are marketing analytics for advertising companies to gather data about you and your company and sell it to advertisers for profit. The marketing strategies involve continuous observations on following factors

In the recent times, Many people seem to post about sitemap.xml suffering a problem with content. In the sitemap you give a title, description and URL of the webpages in your website

Is the new content title and meta tag scraped before the sitemap is submitted to google by sitemap generators? And the Answer is YES

The sitemap.xml file hands over a list of urls of website directly to any scraper who wants to make use of it for cloaking

Cloaking is primarily used to show an optimized page to the search engines and a different page to humans

Excessively scraped sites can struggle in the SERPs- This means that When someone mirrors your content it’s possible for your page/site to get hit with a duplicate content penalty.

Some Ideas to make it hard for Scrapers

But….

Any time you give scrapers a clear path to avoid honey pots and spider traps they’ll use it. With that said, the scrapers can simply scrape a search engine first using site:mydomain.com to get the equivalent of a sitemap and avoid your spider traps anyway.

How much time does it take to index a site based on the keywords targeted?

The wider the topical nature of subpages, the higher level of authority you need to become in order to rank for them all.

It is difficult to break from a traditional website “theme” model and become a know-all authority. That requires many many links straight to the homepage, and many many deeplinks into the content pages. You need everyone in each sub-topic citating your subpage as the authority in that niche.

Wikipedia pulled it off – see that for an example of this in pratice.

If you have a decent internal link structure and navigation, you’ll get all pages indexed. But you’re only likely to rank well on one or two topics (that’ll vary depending on how competitive each keyword term is) without having a massive inbound link structure out there.

Any decent search algorithm will ultimately theme your pages collectively. They will not assume that you’re an authority on everything. That may not necessarily be deliberate, it’s a result of the interlinked structure of the web. If you visualise the web as a collection of topics, and think about which sectors your links come from (particularly the high quality ones), you’ll picture how that bias exists. Link structure is 99% of it, in particular, deeplinks from other authorities in each keyword niche.

I have heard experience from several webmasters that a subdomain per topic works better (at the moment at least) than a sub-directory per topic.

If your pages are actually all related to a parent topic, concentrate on the parent topic and your internal link structure. If you already rank top 10 for “widgets”, it’s far easier to get a page top 10 for “widgets reviews” or “silver widgets”. You still need deeplinks from authorities to the “widgets reviews” and “silver widgets” pages, but you’re already halfway there with your theming.

what time period does it take for directories to influence search engines indexing all the pages of the site?

That depends from search engine to search engine. The trick is to submit and forget – don’t wait for something to happen – keep building content and getting links.

The primary goal is to write content to see that keyphrases are virtually undetectable when read by someone with no knowledge of SEO. One vital step in making this happen is to carefully research and select your keyphrases.

Common Mistake by Every Webmaster:

Many site owners and newbie copywriters make mistakes like replacing every single instance of a generic key term with one of their chosen keyphrases. Doing this in moderation is certainly acceptable, but frequently copywriters get carried away with tragic results.

Example:

Spanish Villas For Rent If you are looking for Spanish villas vacations, search our site for the best deals in Spanish villas. No other Spanish villas site has the selection of premium Spanish villas with the most sought after locations that we have. View some of our Spanish villas pictures or take virtual tours of our Spanish villas today.

Tips to relieve yourself from the mystery of keyword density
1. DON’T use keyphrases to describe your own products or services. Instead, use them to describe what your product or service is not, or what it is similar to or what it is better than.

Example:
Any keyphrase that begins with the word “cheap.” “Cheap insurance,” “cheap sunglasses,” “cheap software” – the list is endless. It’s simply not a good idea to call your own product cheap. Yes, It is true that people are looking for cheap things, but that is because they don’t want to pay a lot. When THEY call your product cheap, it is in relation to price.

But When YOU call your own product or service cheap, it degrades the product or service’s perceived value.

Instead, let others know that your product is NOT cheap. For example:

Unlike cheap travel insurance offered by other underwriters, our policies have provided long-standing, publicly held companies with a history of exceptional customer service. You get affordable coverage and peace of mind.

The phrase is highly relevant to the page, you get to attract lots of visitors, and the copy is set to convince them that “cheap insurance” isn’t what they really wanted after all.

3. Position yourself against your product to show how you are better.

Example: Instead of using “web design for small business” for which you will target the keyphrases like small business, You can target keyphrases like “small business owners” or “small business startups“.

4. Breaking your long keyphrases into a sentence.

Example: for a keyword like “Texas Hill Country real estate”

There is no more beautiful place than the Texas Hill Country. Real estate listings in this area are filled with stunning homes that.

sounds like a very natural sentence.

SEO copywriting should be looked as an art rather than an assembly line task, your content will sound more natural, will convert better and will help prevent further additions to the already overcrowded collection of tortured copy everywhere!

Supporting Articles -
Keyphrase based indexing by search engine spiders – A data-pull model
Researching content from Internet

Google highlights any search query you Google and see the cache link.

Ask.com also does that and Live.com does not highlight the searched key phrase and that is very interesting.

It is a good indication of keyphrase proximity in the eyes of search engines. I did the search on a small search engine like entireweb, altavista.

Entireweb has Archived instead of cache leading to Internet archive of the site.

I have also seen two interesting links under each result in entireweb.com i .e. More from the host and speedy view. Checking both these features for one site lead me to the same page.