Editing Spamdexing (section)

== Countermeasures ==
{{Expand section|date=October 2017}}

=== Page omission by search engine ===
Spamdexed pages are sometimes eliminated from search results by the search engine.

=== Page omission by user ===
Users can employ search operators for filtering. For Google, a keyword preceded by "-" (minus) will omit sites that contains the keyword in their pages or in the URL of the pages from search result. As an example, the search "-<unwanted site>" will eliminate sites that contains word "<unwanted site>" in their pages and the pages whose URL contains "<unwanted site>".

Users could also use the [[Google Chrome]] extension "Personal Blocklist (by Google)", launched by Google in 2011 as part of countermeasures against [[content farm]]ing.<ref>{{cite web|url=http://searchengineland.com/googles-personal-blocklist-delete-google-search-results-on-chrome-64757|title=New: Block Sites From Google Results Using Chrome's "Personal Blocklist" - Search Engine Land|date=14 February 2011|website=searchengineland.com|access-date=6 October 2017|archive-date=6 October 2017|archive-url=https://web.archive.org/web/20171006112347/http://searchengineland.com/googles-personal-blocklist-delete-google-search-results-on-chrome-64757|url-status=live}}</ref> Via the extension, users could block a specific page, or set of pages from appearing in their search results. As of 2021, the original extension appears to be removed, although similar-functioning extensions may be used.

Possible solutions to overcome search-redirection poisoning redirecting to illegal internet pharmacies include notification of operators of vulnerable legitimate domains. Further, manual evaluation of SERPs, previously published link-based and content-based algorithms as well as tailor-made automatic detection and classification engines can be used as benchmarks in the effective identification of pharma scam campaigns.<ref>{{Cite journal |last1=Fittler |first1=András |last2=Paczolai |first2=Péter |last3=Ashraf |first3=Amir Reza |last4=Pourhashemi |first4=Amir |last5=Iványi |first5=Péter |date=2022-11-08 |title=Prevalence of Poisoned Google Search Results of Erectile Dysfunction Medications Redirecting to Illegal Internet Pharmacies: Data Analysis Study |journal=Journal of Medical Internet Research |language=EN |volume=24 |issue=11 |pages=e38957 |doi=10.2196/38957|pmid=36346655 |pmc=9682446 |doi-access=free }}</ref>