Je sais que Google utilise des liens de redirection pour compter les clics, à savoir:
https://www.google.com/url?q=http://html5test.com/&sa=U&ei=xlezU6DPIsqysQS824HwAg&ved=0CB0QFjAB&usg=AFQjCNEMhjMTe0TBrbgGmG6mlSygIF-mww
mais Bing ne le fait pas, il vous donne plutôt le lien réel vers la page. Cette page expliquant que l'algorithme Bings dit qu'il prend en compte le CTR
Bing semble utiliser AJAX pour suivre les clics.
J'ai utilisé le plugin Firefox Live HTTP Headers et j'ai observé ce qui s'est passé lorsque j'ai cliqué sur un résultat dans Bing. La page de résultat de la recherche a créé une demande de publication avec une charge XML contenant de nombreuses informations sur les éléments sur lesquels j'ai cliqué:
http://www.bing.com/fd/ls/lsp.aspx
POST /fd/ls/lsp.aspx HTTP/1.1
Host: www.bing.com
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: text/xml; charset=UTF-8
Referer: http://www.bing.com/search?q=hello&qs=n&form=QBLH&pq=hello&sc=8-5&sp=-1&sk=&cvid=59661aced04d46f1b80899410929857c
Content-Length: 1440
Cookie: _HOP=; _Edge_S=F=1; _Edge_V=1; _FS=NU=1; _SS=SID=FAC9D0DA20004A6A8613CA3C3CB2C0FC&C=20&bIm=748094&R=1; MUID=125A1E6D6A37680D3F6718066B2668F7; MUIDB=125A1E6D6A37680D3F6718066B2668F7; SRCHD=SM=1&MS=3419186&D=3419186&AF=NOFORM; SRCHUID=V=2&GUID=40090526FFAC48B7881D86F22F6A47B4; SRCHUSR=AUTOREDIR=0&GEOVAR=&DOB=20140702; SRCHHPGUSR=CW=1351&CH=646; SCRHDN=ASD=0&DURL=#; FBS=WTS=1404296809175&CR=-1; _RwBf=s=70&o=16; WLS=TS=63539893612; DUP=Q=nk50aHNbaDqVspSh41v5&T=205151212&IG=555b1d13f5864ff98c4f311e7ab75b3b&V=1&A=2
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache
<ClientInstRequest><Events><E><T>Event.ClientInst</T><IG>555b1d13f5864ff98c4f311e7ab75b3b</IG><TS>1404296823845</TS><D>{"T": "CI.BoxModel", "FID": "CI", "Name": "Perf", "Text": "S%3A0X0X1351X646%3BBODY.%20%3A0X0X1351X1644%3BNAV.b_scopebar%3A0X0X1351X30%3BH1.b_logo%3A17X44X73X29%3BDIV.b_searchboxForm%3A100X40X560X37%3BDIV%23id_h%3A845X0X300X30%3BDIV%23b_tween%3A100X91X1251X30%3BSPAN.sb_count%3A120X91X152X30%3BSPAN.ftrB%3A272X91X116X30%3BOL%23b_results%3A100X121X560X1473%3BLI.b_algo%3A100X121X560X93%3BLI.b_algo%3A100X216X560X111%3BLI.b_ans%3A100X329X560X192%3BLI.b_algo%3A100X524X560X93%3BLI.b_algo%3A100X619X560X93%3BLI.b_ans%3A100X715X560X231%3BLI.b_algo%3A100X947X560X93%3BLI.b_algo%3A100X1043X560X93%3BLI.b_algo%3A100X1138X560X117%3BLI.b_algo%3A100X1257X560X93%3BLI.b_ans%3A100X1353X560X139%3BLI.b_pag%3A100X1494X560X98%3BOL%23b_context%3A690X121X455X818%3BLI.b_ans%3A690X121X455X428%3BLI.b_ans%3A690X554X455X129%3BLI.b_ans%3A690X688X455X246%3BFOOTER.b_footer%3A0X1614X1351X104%3BIMG%23id_p%3A0X0X0X0XEX1X-1%3BIMG%23emb1%3A121X386X120X68XEX120X-1%3BIMG%23emb2%3A242X386X120X68XEX120X-1%3BIMG%23emb3%3A363X386X120X68XEX120X-1%3BIMG%23emb4%3A484X386X120X68XEX120X-1%3BIMG%23emb5%3A120X770X80X80XEX80X-1%3BIMG%23emb6%3A120X1195X50X50XEX50X-1%3BIMG.rms_img%3A710X170X110X110XBX110X-1%3BIMG.rms_img%3A710X598X75X75XBX75X-1%3BIFRAME%3A1351X1641X0X0XB%3BIFRAME%3A0X0X0X0XWl%3B"}</D></E></Events><STS>1404296823845</STS></ClientInstRequest>