Eric-the-Bun
Curlie Meta
- Joined
- Apr 16, 2005
- Messages
- 1,056
you could wonder how an upstanding site that was listed in the ODP and GOOGLE for years was removed from both in the same 24-48 hour period
If you are referring to the Google directory, that is updated from the ODP at verying intervals (i.e. vaguely monthly or whenever Google feels like it). This means that changes made to the ODP may not be reflected in the Google directory straight away or even for months, however obviously sometimes its is quicker. So the answer is that the chance of that situation occurring is quite reasonable (1 in 30ish? excluding sod's law).
If you are referring to SERPs (i.e. sites plummeting in the rankings), Google notices the addition and removal of links fairly quickly and acts on them. If I add or remove a link on my website, it will have an effect within a few days. Here the cause and effect would be automatic by Google noticing that the links had gone and adjusting accordingly, though it would hardly have a major effect unless no one else was linking to the sites.
[Whenever Google does update its directory from the ODP, all changes made in the ODP in the previous 24-48 hours will be included. Saying that a change is made in Google within 24-48 hours of a particular change in the ODP wrongly implies a direct link between the two events.].