Internet Domain Survey, July 2010

Number of Hosts advertised in the DNS


           |      Survey    Adjusted     Replied
     Date  |  Host Count  Host Count    To Ping*
   --------+------------------------------------
   Jul 2010| 768,913,036                  -
   Jan 2010| 732,740,444                  -

   Jul 2009| 681,064,561                  -
   Jan 2009| 625,226,456                  -

   Jul 2008| 570,937,778                  -
   Jan 2008| 541,677,360                  -

   Jul 2007| 489,774,269                  -
   Jan 2007| 433,193,199                  -

   Jul 2006| 439,286,364                  -
   Jan 2006| 394,991,609                  -

   Jul 2005| 353,284,187                  -
   Jan 2005| 317,646,084                  -

   Jul 2004| 285,139,107
   Jan 2004| 233,101,481                  -

   Jan 2003| 171,638,297                  -

   Jul 2002| 162,128,493                  -
   Jan 2002| 147,344,723                  -

   Jul 2001| 125,888,197
   Jan 2001| 109,574,429                  -

   Jul 2000|  93,047,785                  -
   Jan 2000|  72,398,092                  -

   Jul 1999|  56,218,000                  -
   Jan 1999|  43,230,000               8,426,000

   Jul 1998|  36,739,000               6,529,000
   Jan 1998|  29,670,000               5,331,640   [first NEW Survey]

   Jul 1997|  19,540,000  26,053,000   4,314,410   [last OLD Survey]
   Jan 1997|  16,146,000  21,819,000   3,392,000
 
   Jul 1996|  12,881,000  16,729,000   2,569,000
   Jan 1996|   9,472,000  14,352,000   1,682,000
 
   Jul 1995|   6,642,000   8,200,000   1,149,000
   Jan 1995|   4,852,000   5,846,000     970,000

   Jul 1994|   3,212,000                 707,000
   Jan 1994|   2,217,000                 576,000
 
   Jul 1993|   1,776,000                 464,000
   Jan 1993|   1,313,000             

[* estimated by pinging a sample of all hosts]

[adjusted host count was computed by increasing the old survey host count by the percentage of domains that did not respond to the old survey method]

Detailed Survey Data

Produced for ISC by 3way Labs