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The more pages a company has indexed by Google, the more leads it will generate, according to research by internet marketing firm Hubspot.

Incremental Indexed Pages Can Cause Double-digit Lead Growth
There is a strong positive correlation between the number of Google indexed pages and median leads. An incremental increase of 50-100 pages indexed by Google can cause lead growth in double-digit percentages. For example, going from 60-120 indexed pages to 121-175 indexed pages can increase a company’s median leads from seven to 12, creating 58.3% growth.

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The most significant improvement in median lead growth comes when a company increases its indexed pages from the 176-310 range to the 311-plus range. Median leads skyrocket from 22 to 74, representing triple-digit 236% growth. After exceeding the 311 indexed pages mark, median lead growth subsides.

Size Not Critical Factor
Overall, Hubspot research indicates that size is not a critical factor for achieving significant volumes of Google indexed pages. Size and number of pages are mildly positively correlated, mostly in the extreme categories of indexed pages.

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While HubSpot’s large customers formed the biggest group with 311 or more indexed pages in Google, small and medium-sized customers together outnumbered large ones in this category, 57% – 43%. In addition, small customers formed the largest group with 176 to 310 Google indexed pages (39%).

As might be expected, small customers do form the largest group within the less than 60 (53%) and 61-120 (54%) indexed pages categories.

Marketing Takeaways
Hubspot advises marketers considering a Google page indexing program to use the following techniques:

  • Build page volume: Consider starting a blog to quickly increase the number of indexed pages.
  • Improve each page’s optimization as per Google’s methodology to maximize chances of having all corporate web pages included in the index.
  • On-page search engine optimization: Place keywords in the right places on web pages such that Google and other search engines know what each page of a company’s web site is about, and what keywords to rank it for.
  • Off-page search engine optimization: Build inbound links from reputable sites, thus demonstrating a company’s popularity to search engines.
  • Inbound links do not generate more leads, but do generate more unique visitors.

Google Dominates Core Search
Google Sites clearly dominate US internet users’ core search activities, according to comScore. In March 2010, Google Sites led the core search market with 65.1% market share and 10.05 billion core searches, up 6% from February 2010. Both of these statistics represent the continuation of long-term core search trends.

About the Data: Data in this article is taken from The State of Inbound Lead Generation [pdf], a new HubSpot report based on statistical analysis of 1,400 customers’ inbound marketing activities.

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