Throw out any notions you’ve had about being indexed in Google. If you spend endless nights wondering why your posts or pages aren’t getting indexed worry no longer.
Google knows they’re there however may have put them into what’s known as the supplemental index.
What’s that? It’s an index of thousands of sites or pages that aren’t the “authority” on that keyword. What am I talking about? Let’s look at an example.

Search the term “ice cream”. Google is showing us results 1-10 of 96.4 million! That’s crazy that there is 96.4 million pages trying to rank for that keyword. However not all are even in the results. If you tried to go to the last page you would never even make it to the millions because Google only shows around 600-800 results for each keyword so really only the top 797 for the term “ice cream” are even in the main index. The rest fall into the supplemental index.

How Do I Know If i’m in The Supplemental Index?
That’s easy just enter this command in your google search
site:www.yoursite.com *** -sljktf
Now compare that to how many pages you DO have in the main index
Site:www.yoursite.com
What’s the ratio? Is it more than half?
How Do I Get Out of The Supplemental Index?
I can’t take credit for this analogy but it does the answer great justice.
Imagine I’m speaking to you along with 1,000’s of others in a large room. I ask the question. “what’s a wall?” You point to the wall to your right, the person next to you points to the left, and still another points behind you. If I didn’t know better I’d be confused because everyone pointed to different places how am I to know which wall is the one true “wall.” But I ask the next question, “What’s a ceiling?” Everyone points up.
Google works like this, when I say “what’s ice cream?” it’s going to know what ice cream is by how many people are pointing (linking) to it.
Granted there are a ton of other aspects that go into search engine optimization, however when it comes to getting out of the supplemental index you need links.

