Sudden Major Decrease in Impressions

Thank you so much. I will check it out.

Did you read my post and try “Comparing Data” with GWT->Health->Index Status?

Thank you for your response. However, I don’t know what this means:

“Comparing Data” with GWT->Health->Index Status

Could you elaborate on this? Thanks.

Open Google Webmaster Tools
Select your site
Select in left column -> Health
Select in left column -> Index Status
Open Advanced Option (where you should see the last 12 months statistics)
From the Help in the bottom left corner read, note and try comparing the following statistics:

If you see a sudden drop in the number of indexed pages, it may mean that your server is down or overloaded, or that Google is having trouble accessing your content.

A high number of duplicate pages could mean that your site has problems with canonicalization, duplicate content, or automatically generated pages, or that it has been hacked. In many cases, Google will send you a message when we detect problems with your site, so make sure to set your notification preferences.

Try comparing data:
To see the percentage of your site that’s accessible to Google, compare the number of crawled pages with the number of pages blocked by robots.txt.

To see how much of your site consists of pages perceived to contain unique content, compare the number of indexed pages with the number of pages marked Not Selected.

If you do not understand the help information then post a screen dump along with your questions.

Thanks. I’m not sure what this means:

Date Total indexed Ever crawled Not selected Blocked by robots Removed
11/6/2011 150 39096 50 0 0
11/13/2011 148 39101 51 0 0
11/20/2011 145 39103 52 0 0
11/27/2011 141 39103 52 0 0
12/4/2011 137 39103 52 0 0
12/11/2011 137 39104 52 0 0
12/18/2011 136 39106 53 0 0
12/25/2011 137 39108 53 0 0
1/1/2012 126 39108 53 0 0
1/8/2012 126 39109 55 0 0
1/15/2012 126 39109 57 0 0
1/22/2012 123 39109 56 0 0
1/29/2012 121 39153 55 0 0
2/5/2012 121 39168 56 0 0
2/12/2012 124 39170 56 0 0
2/19/2012 125 39172 57 0 0
2/26/2012 127 39174 57 0 0
3/4/2012 129 39174 58 0 0
3/11/2012 134 39174 60 0 0
3/18/2012 134 39175 61 0 0
3/25/2012 134 39176 63 0 0
4/1/2012 143 39176 64 4 0
4/8/2012 140 39177 63 4 0
4/15/2012 143 39177 68 4 0
4/22/2012 143 39186 68 4 0
4/29/2012 143 39186 68 4 0
5/6/2012 153 39189 70 4 0
5/13/2012 150 39189 83 4 0
5/20/2012 144 39189 83 4 0
5/27/2012 138 39189 84 4 0
6/3/2012 137 39189 87 4 0
6/10/2012 133 39189 90 4 0
6/17/2012 129 39189 91 4 0
6/24/2012 127 39189 91 4 0
7/1/2012 124 39189 98 4 0
7/8/2012 133 39210 108 4 0
7/15/2012 139 39230 115 0 0
7/22/2012 138 39230 114 0 0
7/29/2012 138 39230 113 0 0
8/5/2012 138 39230 108 0 0
8/12/2012 143 39230 111 0 0
8/19/2012 144 39231 103 0 0
8/26/2012 144 39231 104 0 0
9/2/2012 144 39231 105 0 0
9/9/2012 144 39231 104 0 0
9/16/2012 143 39231 104 0 0
9/23/2012 143 39231 104 0 0
9/30/2012 143 39232 103 0 0
10/7/2012 141 39232 104 0 0
10/14/2012 138 39232 104 0 0
10/21/2012 138 39237 107 0 0
10/28/2012 137 39237 114 0 0

It would help if you could be more specific and especially what conclusions you have reached after comparing your results with Google’s detailed Help file.

Your data show that over the last 52 weeks Google has analysed and decided your pages:

  1. Total Indexed figure has gradually dropped from 150 down to 137

  2. Ever Crawled has slowly risen from 39,096 to 39,237

  3. Not Selected has gradually increased from 50 to 114

  4. Blocked by Robots.txt had a slight increase from 0 to 4 for 15 weeks starting April 2011

My Conclusions and Two Cents:
Your site does not appear to be updated (1) and your content has decreased (3) so I assume that Google’s Updates have discovered duplicate content and reduced your search exposure.

I believe that Google are trying to encourage fast, optimised, semantic error free sites with little or no missing files. Also these preferred factors are not critical and have a low rate of importance. (I am still amazed at the errors on some leading sites). Unique content and popularity is their main ranking factor.

Your site looks as though the decline will persist and desperately requires additional unique content to regain your previous popularity. Have you considered a forum or create your own suggestions in a “Question and Answer” section?

Thank you for your feedback.