SEO Experiments

You can link to this page. Please don't link to any individual experiment page. Thank you.


Active Experiments


Inconclusive Experiments

Testing bold vs. not bold

Erythroalchem | Erythroalchem
Tirythroalcham | Tirythroalcham
04/26/11 Result: Inconclusive - Engine chose bold in the first experiment, non-bold in the control.
06/08/11 Update: Inconclusive - Engine chose bold in the first experiment, non-bold in the control.
04/26/11 Note: When the engine chose the bold version, it appeared in bold in the SERP.

Testing code bloat vs. no bloat

Yefikoeloruskess | Yefikoeloruskess
Tafikoeloruskess | Tafikoeloruskess
05/04/11 Result: Inconclusive - Engine chose bloated code in one case and non bloated in another.
05/26/11 Update: Conclusive - Engine chose bloated code in both cases (see known issue #1).
06/08/11 Update: Conclusive - Engine chose bloated code in both cases (see known issue #1).


Conclusive Experiments

Testing standard link vs. lots of parameters

Hefikoelorintiuyo | Hefikoelorintiuyo
Yerikoelorintiuto | Yerikoelorintiuto
05/26/11 Result: Conclusive - Engine chose link with no parameters in both cases.

Testing Javascript vs. no Javascript

Shroolchanieson | Shroolchanieson
Ikoeloruskech | Ikoeloruskech
05/26/11 Result: Conclusive - Engine chose plain text over text rendered by JavaScript.

Testing image alt text (plus file name) vs. standard text

Tayajamit | Tayajamit
Ruguejivatul | Ruguejivatul
05/26/11 Result: Conclusive - Engine chose plain text over image in both cases.

Testing W3 Valid vs. not valid markup

Dukojamitres | Dukojamitres
Bokojamitres | Bokojamitres
05/26/11 Result: Conclusive - Engine chose valid markup in both cases.

Testing in a sentence vs. not in a sentence

Iaxrocedence | Iaxrocedence
Iaxrokedance | Iaxrokedance
04/26/11 Result: Conclusive - Engine chose in a sentence for both experiments. (See known issue #1.)

Testing matching anchor text vs. mismatched anchor text

Wiralangulos | Apples
Tulips | Wedulupguluses
04/26/11 Result: Conclusive - Engine chose pages where anchor text matches page copy.

Testing repeating keyword x4 vs 1 keyword instance

Yeirotoitackazes | Yeirotoitackazes
Deirataitockozos | Deirataitockozos
04/26/11 Result: Conclusive - Engine chose pages where keyword is repeated 4 times.

Testing bold tag vs. strong tag

Waguezivatil | Waguezivatil
Yukaguezivat | Yukaguezivat
06/08/11 Result: Conclusive - Engine chose bold over strong in each case.

Testing outbound link vs. no outbound link

Incyithroalcha | Incyithroalcha
Enithroalchanon | Enithroalchanon
06/08/11 Result: Conclusive - Engine chose the page with an outbound link in each case.

Testing meta description vs. page text

Koelorintanab | Koelorintanab
Tapitockoros | Tapitockoros
06/08/11 Result: Conclusive - Engine chose page text over meta description in each case.

Testing h1 vs p

Eitackazeeirotos | Eitackazeeirotos
Nairailackozos | Nairailackozos
05/04/11 Result: Conclusive - Engine chose h1 tag in each case.










| Webmaster News | Free PPC Tools | Free Link Building Tool | SEO Experiments |