百度谷歌搜狗搜刮引擎排序_google的搜刮排序算法（google的搜索排序算法）

　　任何一个搜刮引擎都会对网页举行排序，而全部这些网页的排序不是一二个比力就能得出的，也不是在比网页的雅观，更不是搜刮引擎在那想固然。不管是百度还是谷歌，对网页举行排名都必要大量的数据网络和盘算，以是每个搜刮引擎都有本身的算法，而这些算法包罗了浩繁影响网页在搜刮引擎中排名的因素，搜刮引擎就是综合思量这些因向来给网站排名，以是相识了这些因素我们才华克制出现倒霉于搜刮引擎排名的操纵，才华在浩繁网站在脱颖而出，取得更好的排名，下面淄博谷歌推广为您先容下影响Google排名的200个因素。

　　一、域名因素

　　1.DomainAge:Inthisvideo,MattCuttsstatesthat:

　　“Thedifferencebetweenadomainthat’ssixmonthsoldversesoneyearoldisreallynotthatbigatall.”.

　　Inotherwords,theydousedomainage…butit’snotveryimportant.

　　2.KeywordAppearsinTopLevelDomain:Doesn’tgivetheboostthatitusedto,buthavingyourkeywordinthedomainstillactsasarelevancysignal.Afterall,theystillboldkeywordsthatappearinadomainname.

　　3.KeywordAsFirstWordinDomain:SEOMoz’s2011SearchEngineRankingFactorspanelistsagreedthatadomainthatstartswiththeirtargetkeywordhasanedgeoversitesthateitherdon’thavethekeywordintheirdomainorhavethekeywordinthemiddleorendoftheirdomain:

　　4.Domainregistrationlength:AGooglepatentstates:

　　“Valuable(legitimate)domainsareoftenpaidforseveralyearsinadvance,whiledoorway(illegitimate)domainsrarelyareusedformorethanayear.Therefore,thedatewhenadomainexpiresinthefuturecanbeusedasafactorinpredictingthelegitimacyofadomain”.

　　5.KeywordinSubdomainName:SEOMoz’spanelalsoagreedthatakeywordappearinginthesubdomainboostsrank:

　　6.DomainHistory:Asitewithvolatileownership(viawhois)orseveraldropsmaytellGoogleto“reset”thesite’shistory,negatinglinkspointingtothedomain.

　　7.ExactMatchDomain:EMDsmaystillgiveyouanedge…ifit’saqualitysite.ButiftheEMDhappenstobealow-qualitysite,it’svulnerabletotheEMDupdate:

　　8.Publicvs.PrivateWhoIs:PrivateWhoIsinformationmaybeasignof“somethingtohide”.MattCuttsisquotedasstatingatPubcon2006:

　　“…WhenIcheckedthewhoisonthem,theyallhad“whoisprivacyprotectionservice”onthem.That’srelativelyunusual.…Havingwhoisprivacyturnedonisn’tautomaticallybad,butonceyougetseveralofthesefactorsalltogether,you’reoftentalkingaboutaverydifferenttypeofwebmasterthanthefellowwhojusthasasinglesiteorso.”

　　9.PenalizedWhoIsOwner:IfGoogleidentifiesaparticularpersonasaspammeritmakessensethattheywouldscrutinizeothersitesownedbythatperson.

　　10.CountryTLDextension:HavingaCountryCodeTopLevelDomain(.cn,.pt,.ca)helpsthesiterankforthatparticularcountry…butlimitsthesite’sabilitytorankglobally.

　　二、页面级因素

　　11.KeywordinTitleTag:Thetitletagisawebpage’ssecondmostimportantpieceofcontent(besidesthecontentofthepage)andthereforesendsastrongon-pageSEOsignal.

　　12.TitleTagStartswithKeyword:AccordingtoSEOMozdata,titletagsthatstartswithakeywordtendtoperformbetterthantitletagswiththekeywordtowardstheendofthetag:

　　13.KeywordinDescriptionTag:Anotherimportantrelevancysignal.

　　14.KeywordAppearsinH1Tag:H1tagsarea“secondtitletag”thatsendsanotherrelevancysignaltoGoogle,accordingtoresultsfromthiscorrelationstudy:

　　15.KeywordisMostFrequentlyUsedPhraseinDocument:Havingakeywordappearmorethananyotherlikelyactsasarelevancysignal.

　　16.ContentLength:Contentwithmorewordscancoverawiderbreadthandarelikelypreferredtoshortersuperficialarticles.SERPIQfoundthatcontentlengthcorrelatedwithSERPposition:

　　17.KeywordDensity:Althoughnotasimportantasitoncewas,keyworddensityisstillsomethingGoogleusestodeterminethetopicofawebpage.Butgoingoverboardcanhurtyou.

　　18.LatentSemanticIndexingKeywordsinContent(LSI):LSIkeywordshelpsearchenginesextractmeaningfromwordswithmorethanonemeaning(Applethecomputercompanyvs.thefruit).Thepresence/absenceofLSIprobablyalsoactsasacontentqualitysignal.

　　19.LSIKeywordsinTitleandDescriptionTags:Aswithwebpagecontent,LSIkeywordsinpagemetatagsprobablyhelpGooglediscernbetweensynonyms.Mayalsoactasarelevancysignal.

　　20.PageLoadingSpeedviaHTML:BothGoogleandBingusepageloadingspeedasarankingfactor.Searchenginespiderscanestimateyoursitespeedfairyaccuratelybasedonapage’scodeandfilesize.

　　21.DuplicateContent:Identicalcontentonthesamesite(evenslightlymodified)cannegativelyinfluenceasite’ssearchenginevisibility.

　　22.Rel=Canonical:Whenusedproperly,useofthistagmaypreventGooglefromconsideringpagesduplicatecontent.

　　23.PageLoadingSpeedviaChrome:GooglemayalsouseChromeuserdatatogetabetterhandleonapage’sloadingtimeasthistakesintoaccountserverspeed,CDNusageandothernonHTML-relatedsitespeedsignals.

　　24.ImageOptimization:Imageson-pagesendsearchenginesimportantrelevancysignalsthroughtheirfilename,alttext,title,descriptionandcaption.

　　25.RecencyofContentUpdates:GoogleCaffeineupdatefavorsrecentlyupdatedcontent,especiallyfortime-sensitivesearches.Highlightingthisfactor’simportance,Googleshowsthedateofapage’slastupdateforcertainpages:

　　26.MagnitudeofContentUpdates:Thesignificanceofeditsandchangesisalsoafreshnessfactor.Addingorremovingentiresectionsisamoresignificantupdatethanswitchingaroundtheorderofafewwords.

　　27.HistoricalUpdatesPageUpdates:Howoftenhasthepagebeenupdatedovertime?Daily,weekly?Frequencyofpageupdatesalsoplayaroleinfreshness.

　　28.KeywordProminence:Havingakeywordappearinthefirst100-wordsofapage’scontentappearstobeasignificantrelevancysignal.

　　29.KeywordinH2,H3Tags:HavingyourkeywordappearasasubheadinginH2orH3formatmaybeanotherweakrelevancysignal.SEOMoz’spanelagrees:

　　30.KeywordWordOrder:Anexactmatchofasearcher’skeywordinapage’scontentwillgenerallyrankbetterthanthesamekeywordphraseinadifferentorder.Forexample:considerasearchfor:“catshavingtechniques”.Apageoptimizedforthephrase“catshavingtechniques”willrankbetterthanapageoptimizedfor“techniquesforshavingacat”.

　　31.OutboundLinkQuality:ManySEOsthinkthatlinkingouttoauthoritysiteshelpssendtrustsignalstoGoogle.

　　32.OutboundLinkTheme:AccordingtoSEOMoz,searchenginesmayusethecontentofthepagesyoulinktoasarelevancysignal.Forexample,ifyouhaveapageaboutcarsthatlinkstomovie-relatedpages,thismaytellGooglethatyourpageisaboutthemovieCars,nottheautomobile.

　　33.GrammarandSpelling:Propergrammarandspellingisaqualitysignal,althoughCuttsgavemixedmessagesin2011onwhetherornotthiswasimportant.

　　34.SyndicatedContent:Isthecontentonthepageoriginal?Ifit’sscrapedorcopiedfromanindexedpageitwon’trankaswellastheoriginalorendupintheirSupplementalIndex.

　　35.HelpfulSupplementaryContent:Accordingtoanow-publicGoogleRaterGuidelinesDocument,helpfulsupplementarycontentisanindicatorofapage’squality(andtherefore,Googleranking).Examplesincludecurrencyconverters,loaninterestcalculatorsandinteractiverecipes.

　　36.NumberofOutboundLinks:ToomanydofollowOBLsmay“leak”PageRank,whichcanhurtsearchvisibility.

　　37.Multimedia:Images,videosandothermultimediaelementsmayactasacontentqualitysignal.

　　38.NumberofInternalLinksPointingtoPage:Thenumberofinternallinkstoapageindicatesitsimportancerelativetootherpagesonthesite.

　　39.QualityofInternalLinksPointingtoPage:InternallinksfromauthoritativepagesondomainhaveastrongereffectthanpageswithnoorlowPR.

　　40.BrokenLinks:Havingtoomanybrokenlinksonapagemaybeasignofaneglectedorabandonedsite.TheGoogleRaterGuidelinesDocumentusesbrokenlinksasonewastoassessahomepage’squality.

　　41.ReadingLevel:There’snodoubtthatGoogleestimatesthereadinglevelofwebpages:

　　Butwhattheydowiththatinformationisupfordebate.Somesaythatabasicreadinglevelwillhelpyourpagerankbecauseitwillappealtothemasses.However,LinchpinSEOdiscoveredthatreadinglevelwasonefactorthatseparatedqualitysitesfromcontentmills.

　　42.AffiliateLinks:Affiliatelinksthemselvesprobablywon’thurtyourrankings.Butifyouhavetoomany,Google’salgorithmmaypaycloserattentiontootherqualitysignalstomakesureyou’renota“thinaffiliatesite”.

　　43.HTMLerrors/WC3validation:LotsofHTMLerrorsorsloppycodingmaybeasignofapoorqualitysite.Whilecontroversial,manyinSEOthinkthatWC3validationisaweakqualitysignal.

　　44.PageHost’sDomainAuthority:Allthingsbeingequalapageonanauthoritativedomainwillhigherthanapageonadomainwithlessauthority.

　　45.Page’sPageRank:Notperfectlycorrelated.ButingeneralhigherPRpagestendtorankbetterthanlowPRpages.

　　46.URLLength:SearchEngineJournalnotesthatexcessivelylongURLsmayhurtsearchvisibility.

　　47.URLPath:Apageclosertothehomepagemaygetaslightauthorityboost.

　　48.HumanEditors:Althoughneverconfirmed,GooglehasfiledapatentforasystemthatallowshumaneditorstoinfluencetheSERPs.

　　49.PageCategory:Thecategorythepageappearsonisarelevancysignal.Apagethat’spartofacloselyrelatedcategoryshouldgetarelevancyboostcomparedtoapagethat’sfiledunderanunrelatedorlessrelatedcategory.

　　50.WordPressTags:TagsareWordPress-specificrelevancysignal.AccordingtoYoast.com:

　　“TheonlywayitimprovesyourSEOisbyrelatingonepieceofcontenttoanother,andmorespecificallyagroupofpoststoeachother”

　　51.KeywordinURL:Anotherimportantrelevancysignal.

　　52.URLString:ThecategoriesintheURLstringarereadbyGoogleandmayprovideathematicsignaltowhatapageisabout:

　　53.ReferencesandSources:Citingreferencesandsources,likeresearchpapersdo,maybeasignofquality.TheGoogleQualityGuidelinesstatesthatreviewersshouldkeepaneyeoutforsourceswhenlookingatcertainpages:“Thisisatopicwhereexpertiseand/orauthoritativesourcesareimportant…”.

　　54.BulletsandNumberedLists:Bulletsandnumberedlistshelpbreakupyourcontentforreaders,makingthemmoreuserfriendly.Googlelikelyagreesandmayprefercontentwithbulletsandnumbers.

　　55.PriorityofPageinSitemap:Thepriorityapageisgivenviathesitemap.xmlfilemayinfluenceranking.

　　56.TooManyOutboundLinks:StraightfromtheaforementionedQualityraterdocument:

　　“Somepageshaveway,waytoomanylinks,obscuringthepageanddistractingfromtheMainContent”

　　57.QuantityofOtherKeywordsPageRanksFor:IfthepageranksforseveralotherkeywordsitmaygiveGoogleaninternalsignofquality.

　　58.PageAge:AlthoughGoogleprefersfreshcontent,anolderpagethat’sregularlyupdatedmayoutperformanewerpage.

　　59.UserFriendlyLayout:CitingtheGoogleQualityGuidelinesDocumentyetagain:

　　“ThepagelayoutonhighestqualitypagesmakestheMainContentimmediatelyvisible”

　　60.ParkedDomains:AGoogleupdateinDecemberof2011decreasedsearchvisibilityofparkeddomains.

　　61.UsefulContent:AspointedoutbyBacklinkoreaderJaredCarrizales,Googlemaydistinguishbetween“quality”and“useful”content.

　　三、网站级因素

　　62.ContentProvidesValueandUniqueInsights:Googlehasstatedthatthey’reonthehuntforsitesthatdon’tbringanythingneworusefultothetable,especiallythinaffiliatesites.

　　63.ContactUsPage:TheaforementionedGoogleQualityDocumentstatesthattheyprefersiteswithan“appropriateamountofcontactinformation”.Supposedbonusifyourcontactinformationmatchesyourwhoisinfo.

　　64.DomainTrust/TrustRank:Sitetrust—measuredbyhowmanylinksawayyoursiteisfromhighly-trustedseedsites—isamassivelyimportantrankingfactor.YoucanreadmoreaboutTrustRankhere.

　　65.SiteArchitecture:Awellput-togethersitearchitecture(especiallyasilostructure)helpsGooglethematicallyorganizeyourcontent.

　　66.SiteUpdates:Howoftenasiteisupdated—andespeciallywhennewcontentisaddedtothesite—isasite-widefreshnessfactor.

　　67.NumberofPages:Thenumberofpagesasiteisaweaksignofauthority.Attheveryleastalargesitehelpsdistinguishitfromthinaffiliatesites.

　　68.PresenceofSitemap:Asitemaphelpssearchenginesindexyourpageseasierandmorethoroughly,improvingvisibility.

　　69.SiteUptime:Lotsofdowntimefromsitemaintenanceorserverissuesmayhurtyourranking(andcanevenresultindeindexingifnotcorrected).

　　70.ServerLocation:Serverlocationmayinfluencewhereyoursiteranksindifferentgeographicalregions.Especiallyimportantforgeo-specificsearches.

　　71.SSLCertificate(EcommerceSites):GooglehasconfirmedthattheyindexSSLcertificates.Itstandstoreasonthatthey’llpreferentiallyrankecommercesiteswithSSLcertificates.

　　72.TermsofServiceandPrivacyPages:ThesetwopageshelptellGooglethatasiteisatrustworthymemberoftheinternet.

　　73.DuplicateContentOn-Site:Duplicatepagesandmetainformationacrossyoursitemaybringdownallofyourpage’svisibility.

　　74.BreadcrumbNavigation:Thisisastyleofuser-friendlysite-architecturethathelpsusers(andsearchengines)knowwheretheyareonasite:

　　BothSearchEngineJournal.comandEthicalSEOConsultingclaimthatthisset-upmaybearankingfactor.

　　75.MobileOptimized:Google’sofficialstanceonmobileistocreatearesponsivesite.It’slikelythatresponsivesitesgetanedgeinsearchesfromamobiledevice.

　　76.YouTube:There’snodoubtthatYouTubevideosaregivenpreferentialtreatmentintheSERPs(probablybecauseGoogleownsit):

　　Infact,SearchEngineLandfoundthatYouTube.comtrafficincreasedsignificantlyafterGooglePanda.

　　77.SiteUsability:Asitethat’sdifficulttouseortonavigatecanhurtrankingbyreducingtimeonsite,pagesviewedandbouncerate.Thismaybeanindependentalgorithmicfactorgleanedfrommassiveamountsofuserdata.

　　78.UseofGoogleAnalyticsandGoogleWebmasterTools:Somethinkthathavingthesetwoprogramsinstalledonyoursitecanimproveyourpage’sindexing.TheymayalsodirectlyinfluencerankbygivingGooglemoredatatoworkwith(ie.moreaccuratebouncerate,whetherornotyougetreferalltrafficfromyourbacklinksetc.).

　　79.Userreviews/Sitereputation:Asite’sonreviewsiteslikeYelp.comandRipOffReport.comlikelyplayanimportantroleinthealgorithm.Googleevenpostedararelycandidoutlineoftheirapproachtouserreviewsafteraneyeglasssitewascaughtrippingoffcustomersinanefforttogetbacklinks.

　　四、反向链接因素

　　80.LinkingDomainAge:Backlinksfromageddomainsmaybemorepowerfulthannewdomains.

　　81.#ofLinkingRootDomains:ThenumberofreferringdomainsisoneofthemostimportantrankingfactorsinGoogle’salgorithm,asyoucanseefromthischartfromSEOMoz(bottomaxisisSERPposition):

　　82.#ofLinksfromSeparateC-ClassIPs:Linksfromseperateclass-cIPaddressessuggestawiderbreadthofsiteslinkingtoyou.

　　83.#ofLinkingPages:Thetotalnumberoflinkingpages—evenifsomeareonthesamedomain—isarankingfactor.

　　84.AltTag(forImageLinks):Alttextisanimage’sversionofanchortext.

　　85.Linksfrom.eduor.govDomains:MattCuttshasstatedthatTLDdoesn’tfactorintoasite’simportance.However,thatdoesn’tstopSEOsfromthinkingthatthere’saspecialplaceinthealgofor.govand.eduTLDs.

　　86.PRofLinkingPage:ThePageRankofthereferringpageisanextremelyimportantrankingfactor.

　　87.AuthorityofLinkingDomain:Thereferringdomain’sauthoritymayplayanindependentroleinalink’simportance(ie.aPR2pagelinkfromasitewithahomepagePR3maybeworthlessthanaPR2pagelinkfromPR8Yale.edu).

　　88.LinksFromCompetitors:LinksfromotherpagesrankinginthesameSERPmaybemorevaluableforapage’srankforthatparticularkeyword.

　　89.SocialSharesofReferringPage:Theamountofpage-levelsocialsharesmayinfluencethelink’svalue.

　　90.LinksfromBadNeighborhoods:Linksfrom“badneighborhoods”mayhurtyoursite.

　　91.GuestPosts:AlthoughdefinitelywhitehatSEO,linkscomingfromguestposts—especiallyinanauthorbioarea—maynotbeasvaluableasacontextuallinkonthesamepage.

　　92.LinkstoHomepageDomainthatPageSitsOn:Linkstoareferringpage’shomepagemayplayspecialimportanceinevaluatingasite’s—andthereforealink’s—weight.

　　93.NofollowLinks:OneofthemostcontroversialtopicsinSEO.Google’sofficialwordonthematteris:

　　“Ingeneral,wedon’tfollowthem.”

　　Whichsuggeststhattheydo…atleastincertaincases.Havingacertain%ofnofollowlinksmayalsoindicateanaturalvs.unnaturallinkprofile.

　　94.DiversityofLinkTypes:Havinganunnaturallylargepercentageofyourlinkscomefromasinglesource(ie.forumprofiles,blogcomments)maybeasignofwebspam.Ontheotherhand,linksfromdiversesourcesisasignofanaturallinkprofile.

　　95.“SponsoredLinks”OrOtherWordsAroundLink:Wordslike“sponsors”,“linkpartners”and“sponsoredlinks”maydecreasealink’svalue.

　　96.ContextualLinks:Linksembeddedinsideapage’scontentareconsideredmorepowerfulthanlinksonanemptypageorfoundelsewhereonthepage.Agoodexampleofcontextuallinksarebacklinksfromguestographics.

　　97.Excessive301RedirectstoPage:Linkscomingfrom301redirectsdilutesome(orevenall)PR,accordingtoaWebmasterHelpVideo.

　　98.BacklinkAnchorText:AsnotedinthisdescriptionofGoogle’soriginalalgorithm:

　　“First,anchorsoftenprovidemoreaccuratedescriptionsofwebpagesthanthepagesthemselves.”

　　Obviously,anchortextislessimportantthanbefore(andlikelyawebspamsignal).Butitstillsendsastrongrelevancysignalinsmalldoses.

　　99.InternalLinkAnchorText:Internallinkanchortextisanotherrelevancysignal,althoughprobablyweigheddifferentlythanbacklinkanchortext.

　　100.LinkTitleAttribution:Thelinktitle(thetextthatappearswhenyouhoveroveralink)isalsousedasaweakrelevancysignals.

　　101.CountryTLDofReferringDomain:Gettinglinksfromcountry-specifictopleveldomainextensions(.de,.cn,.co.uk)mayhelpyourankbetterinthatcountry.

　　102.LinkLocationInContent:Linksthebeginningofapieceofcontentcarryslightmoreweightthanlinksplacedattheendofthecontent.

　　103.LinkLocationonPage:Wherealinkappearsonapageisimportant.Generally,linksembeddedinapage’scontentaremorepowerfulthanlinksinthefooterorsidebararea.

　　104.LinkingDomainRelevancy:Alinkfromsiteinasimilarnicheissignificantlymorepowerfulthanalinkfromacompletelyunrelatedsite.That’swhyanyeffectiveSEOstrategytodayfocusesongettingrelevantlinks.

　　105.PageLevelRelevancy:TheHilltopAlgorithmstatesthatlinkfromapagethat’scloselytiedtopage’scontentismorepowerfulthanalinkfromanunrelatedpage.

　　106.TextAroundLinkSentiment:Googlehasprobablyfiguredoutwhetherornotalinktoyoursiteisarecommendationorpartofanegativereview.Linkswithpositivesentimentsaroundthemlikelycarrymoreweight.

　　107.KeywordinTitle:Googlegivesextralovetolinksonpagesthatcontainyourpage’skeywordinthetitle(“Expertslinkingtoexperts”.)

　　108.PositiveLinkVelocity:AsitewithpositivelinkvelocityusuallygetsaSERPboost.

　　109.NegativeLinkVelocity:Negativelinkvelocitycansignificantlyreducerankingsasit’sasignalofdecreasingpopularity.

　　110.Linksfrom“Hub”Pages:AaronWallclaimsthatgettinglinksfrompagesthatareconsideredtopresources(orhubs)onacertaintopicaregivenspecialtreatment.

　　111.LinkfromAuthoritySites:Alinkfromasiteconsideredan“authoritysite”likelypassmorejuicethanalinkfromasmall,micronichesite.

　　112.LinkedtoasWikipediaSource:Althoughthelinksarenofollow,manythinkthatgettingalinkfromWikipediagivesyoualittleaddedtrustandauthorityintheeyesofsearchengines.

　　113.Co-Occurrences:ThewordsthattendtoappeararoundyourbacklinkshelpstellGooglewhatthatpageisabout.

　　114.BacklinkAge:AccordingtoaGooglepatent,olderlinkshavemorerankingpowerthannewlymintedbacklinks.

　　115.LinksfromRealSitesvs.Splogs:Duetotheproliferationofblognetworks,Googleprobablygivesmoreweighttolinkscomingfrom“realsites”thanfromfakeblogs.Theylikelyusebrandanduser-interactionsignalstodistinguishbetweenthetwo.

　　116.NaturalLinkProfile:Asitewitha“natural”linkprofileisgoingtorankhighlyandbemoredurabletoupdates.

　　117.ReciprocalLinks:Google’sLinkSchemespagelists“Excessivelinkexchanging”asalinkschemetoavoid.

　　118.UserGeneratedContentLinks:GoogleisabletoidentifylinksgeneratedfromUGCvs.theactualsiteowner.Forexample,theyknowthatalinkfromtheofficialWordPress.comblogaten.blog.wordpress.comisverydifferentthanalinkfrombesttoasterreviews.wordpress.com.

　　119.Linksfrom301:Linksfrom301redirectsmaylosealittlebitofjuicecomparedtoadirectlink.However,MattCuttssaysthata301isthesimilartoadirectlink.

　　120.Schema.orgMicroformats:Pagesthatsupportmicroformatsmayrankabovepageswithoutit.ThismaybeadirectboostorthefactthatpageswithmicroformattinghaveahigherSERPCTR:

　　121.DMOZListed:ManybelievethatGooglegivesDMOZlistedsitesalittleextratrust.

　　122.Yahoo!DirectoryListed:ThealgorithmmightalsohaveaspecialplacefortheYahoo!Directory,consideringhowlongit’sbeencatalogingsites.

　　123.NumberofOutboundLinksonPage:PageRankisfinite.AlinkonapagewithhundredsofOBLspasseslessPRthanapagewithonlyafewOBLs.

　　124.ForumProfileLinks:Becauseofindustrial-levelspamming,Googlemaysignificantlydevaluelinksfromforumprofiles.

　　125.WordCountofLinkingContent:Alinkfroma1000-wordpostismorevaluablethanalinkinsideofa25-wordsnippet.

　　126.QualityofLinkingContent:Linksfrompoorlywrittenorspuncontentdon’tpassasmuchvalueaslinksfromwell-written,multimedia-enhancedcontent.

　　127.SitewideLinks:MattCuttshasconfirmedthatsitewidelinksare“compressed”tocountasasinglelink.

　　五、用户交互因素

　　128.OrganicClickThroughRateforaKeyword:PagesthatgetclickedmoreinCTRmaygetaSERPboostforthatparticularkeyword.

　　129.OrganicCTRforAllKeywords:Apage’s(orsite’s)organicCTRforallkeywordsisranksformaybeahuman-based,userinteractionsignal.

　　130.BounceRate:NoteveryoneinSEOagreesbounceratematters,butitmaybeawayofGoogletousetheirusersasqualitytesters(pageswherepeoplequicklybounceisprobablynotverygood).

　　131.DirectTraffic:It’sconfirmedthatGoogleusesdatafromGoogleChrometodeterminewhetherornotpeoplevisitasite(andhowoften).Siteswithlotsofdirecttrafficarelikelyhigherqualitythansitesthatgetverylittledirecttraffic.

　　132.RepeatTraffic:Theymayalsolookatwhetherornotusersgobacktoapageorsiteaftervisiting.SiteswithrepeatvisitorsmaygetaGooglerankingboost.

　　133.BlockedSites:GooglehasdiscontinuedthisfeatureinChrome.However,Pandausedthisfeatureasaqualitysignal.

　　134.ChromeBookmarks:WeknowthatGooglecollectsChromebrowserusagedata.PagesthatgetbookmarkedinChromemightgetaboost.

　　135.GoogleToolbarData:SearchEngineWatch’sDannyGoodwinreportsthatGoogleusestoolbardataasarankingsignal.However,besidespageloadingspeedandmalware,it’snowknowwhatkindofdatatheygleanfromthetoolbar.

　　136.NumberofComments:Pageswithlotsofcommentsmaybeasignalofuser-interactionandquality.

　　137.TimeonSite:GoogleAnalyticsandChromedatamayhelpGoogledetermineyouruseraveragetimeonsite.Ifpeoplespendalotoftimeonyoursite,thatmaybeusedasaqualitysignal.

　　六、特别的算法规则

　　138.QueryDeservesFreshness:Googlegivesnewerpagesaboostforcertainsearches.

　　139.QueryDeservesDiversity:GooglemayadddiversitytoaSERPforambiguouskeywords,suchas“ted”,“WWF”or“ruby”.

　　140.UserBrowsingHistory:SitesthatyoufrequentlyvisitwhilesignedintoGooglegetaSERPbumpforyoursearches.

　　141.UserSearchHistory:Searchchaininfluencesearchresultsforlatersearches.Forexample,ifyousearchfor“reviews”thensearchfor“toasters”,GoogleismorelikelytoshowtoasterreviewsiteshigherintheSERPs.

　　142.GeoTargeting:GooglegivespreferencetositeswithalocalserverIPandcountry-specificdomainnameextension.

　　143.SafeSearch:Searchresultswithcursewordsoradultcontentwon’tappearforpeoplewithSafeSearchturnedon.

　　144.Google+Circles:Googleshowshigherresultsforauthorsandsitesthatyou’veaddedtoyourGooglePlusCircles

　　145.DMCAComplaints:Google“downranks”pageswithDMCAcomplaints.

　　146.DomainDiversity:Theso-called“BigfootUpdate”supposedlyaddedmoredomainstoeachSERPpage.

　　147.TransactionalSearches:Googlesometimesdisplaysdifferentresultsforshopping-relatedkeywords,likeflightsearches.

　　148.LocalSearches:GoogleoftenplacesGoogle+Localresultsabovethe“normal”organicSERPs.

　　149.GoogleNewsBox:CertainkeywordstriggeraGoogleNewsbox:

　　150.BigBrandPreference:AftertheVinceUpdate,Googlebegangivingbigbrandsaboostforcertainshort-tailsearches.

　　151.ShoppingResults:GooglesometimesdisplaysGoogleShoppingresultsinorganicSERPs:

　　152.ImageResults:GoogleelbowsourorganiclistingsforimageresultsforsearchescommonlyusedonGoogleImageSearch.

　　153.SingleSiteResultsforBrands:Domainorbrand-orientedkeywordsbringupseveralresultsfromthesamesite.

[!360!]　　154.EasterEggResults:GooglehasadozenorsoEasterEggresults.Forexample,whenyousearchfor“AtariBreakout”inGoogleimagesearch,thesearchresultsturnintoaplayablegame(!).ShoutouttoVictorPanforthisone.

　　七、社会信号

　　155.NumberofTweets:Likelinks,thetweetsapagehasmayinfluenceitsrankinGoogle.

　　156.AuthorityofTwitterUsersAccounts:It’slikelythatTweetscomingfromaged,authorityTwitterprofileswithatonoffollowers(likeJustinBieber)havemoreofaneffectthantweetsfromnew,low-influenceaccounts.

　　157.NumberofFacebookLikes:AlthoughGooglecan’tseemostFacebookaccounts,it’slikelytheyconsiderthenumberofFacebooklikesapagereceivesasaweakrankingsignal.

　　158.FacebookShares:Facebookshares—becausethey’remoresimilartoabacklink—mayhaveastrongerinfluencethanFacebooklikes.

　　159.AuthorityofFacebookUserAccounts:AswithTwitter,FacebooksharesandlikescomingfrompopularFacebookpagesmaypassmoreweight.

　　160.PinterestPins:Pinterestisaninsanelypopularsocialmediaaccountwithlotsofpublicdata.It’sprobablythatGoogleconsidersPinterestPinsasocialsignal.

　　161.VotesonSocialSharingSites:It’spossiblethatGoogleusessharesatsiteslikeReddit,StumbleuponandDiggasanothertypeofsocialsignal.

　　162.NumberofGoogle+1′s:AlthoughMattCuttsgoneontherecordassayingGoogle+has“nodirecteffect”onrankings,it’shardtobelievethatthey’dignoretheirownsocialnetwork.

　　163.AuthorityofGoogle+UserAccounts:It’slogicalthatGooglewouldweigh+1′scomingfromauthoritativeaccountsmorethanfromaccountswithoutmanyfollowers.

　　164.VerifiedGoogle+Authorship:InFebruary2013,GoogleCEOEricSchmidtfamouslyclaimed:

　　“Withinsearchresults,informationtiedtoverifiedonlineprofileswillberankedhigherthancontentwithoutsuchverification,whichwillresultinmostusersnaturallyclickingonthetop(verified)results.”

　　Verifiedauthorshipmayalreadybeatrustsignal.

　　165.SocialSignalRelevancy:Googleprobablyusesrelevancyinformationfromtheaccountsharingthecontentandthetextsurroundingthelink.

　　166.SiteLevelSocialSignals:Site-widesocialsignalsmayincreaseasite’soverallauthority,whichwillincreasesearchvisibilityforallofitspages.

　　八、品牌信号

　　167.BrandNameAnchorText:Brandedanchortextisasimple—butstrong—brandsignal.

　　168.BrandedSearches:It’ssimple:peoplesearchforbrands.IfpeoplesearchforyoursiteinGoogle(ie.“Backlinkotwitter”,Backlinko+“rankingfactors”),Googlelikelytakesthisintoconsiderationwhendeterminingabrand.

　　169.SiteHasFacebookPageandLikes:BrandstendtohaveFacebookpageswithlotsoflikes.

　　170.SitehasTwitterProfilewithFollowers:Twitterprofileswithalotoffollowerssignalsapopularbrand.

　　171.OfficialLinkedinCompanyPage:MostrealbusinesseshavecompanyLinkedinpages.

　　172.EmployeesListedatLinkedin:RandFishkinthinksthathavingLinkedinprofilesthatsaytheyworkforyourcompanyisabrandsignal.

　　173.LegitimacyofSocialMediaAccounts:Asocialmediaaccountwith10,000followersand2postsisprobablyinterpretedalotdifferentlythananother10,000-followerstrongaccountwithlotsofinteraction.

　　174.BrandMentionsonNewsSites:ReallybigbrandsgetmentionedonGoogleNewssitesallthetime.Infact,somebrandsevenhavetheirownGoogleNewsfeedonthefirstpage:

　　175.Co-Citations:Brandsgetmentionedwithoutgettinglinkedto.Googlelikelylooksatnon-hyperlinkedbrandmentionsasabrandsignal.

　　176.NumberofRSSSubscribers:ConsideringthatGoogleownsthepopularFeedburnerRSSservice,itmakessensethattheywouldlookatRSSSubscriberdataasapopularity/brandsignal.

　　177.BrickandMortarLocationWithGoogle+LocalListing:Realbusinesseshaveoffices.It’spossiblethatGooglefishesforlocation-datatodeterminewhetherornotasiteisabigbrand.

　　178.WebsiteisTaxPayingBusiness:SEOMozreportsthatGooglemaylookatwhetherornotasiteisassociatedwithatax-payingbusiness.

　　九、网站上webspam因素

　　179.PandaPenalty:Siteswithlow-qualitycontent(particularlycontentfarms)arelessvisibleinsearchaftergettinghitbyaPandapenalty.

　　180.LinkstoBadNeighborhoods:Linkingoutto“badneighborhoods”—likepharmacyorpaydayloansites—mayhurtyoursearchvisibility.

　　181.Redirects:Sneakyredirectsisabigno-no.Ifcaught,itcangetasitenotjustpenalized,butde-indexed.

　　182.PopupsorDistractingAds:TheofficialGoogleRaterGuidelinesDocumentsaysthatpopupsanddistractingadsisasignofalow-qualitysite.

　　183.SiteOver-Optimization:Includeson-pagefactorslikekeywordstuffing,headertagstuffing,excessivekeyworddecoration.

　　184.PageOver-Optimizaton:Manypeoplereportthat—unlikePanda—Penguintargetsindividualpage(andeventhenjustforcertainkeywords).

　　185.AdsAbovetheFold:The“PageLayoutAlgorithm”penalizessiteswithlotsofads(andnotmuchcontent)abovethefold.

　　186.HidingAffiliateLinks:Goingtoofarwhentryingtohideaffiliatelinks(especiallywithcloaking)canbringonapenalty.

　　187.AffiliateSites:It’snosecretthatGoogleisn’tthebiggestfanofaffiliates.Andmanythinkthatsitesthatmonetizewithaffiliatelinksareputunderextrascrutiny.

　　188.AutogeneratedContent:Googleisn’tabigfanofautogeneratedcontent.Iftheysuspectthatyoursite’spumpingoutcomputer-generatedcontent,itcouldresultinapenaltyorde-indexing.

　　189.ExcessPageRankSculpting:GoingtoofarwithPageRanksculpting—bynofollowingalloutboundlinksormostinternallinks—maybeasignofgamingthesystem.

　　190.IPAddressFlaggedasSpam:Ifyourserver’sIPaddressisflaggedforspam,itmayhurtallofthesitesonthatserver.

　　191.MetaTagSpamming:Keywordstuffingcanalsohappeninmetatags.IfGooglethinksyou’readdingkeywordstoyourmetatagstogamethealgo,theymayhityoursite.

　　十、非页面webspam因素

　　192.UnnaturalInfluxofLinks:Asudden(andunnatural)influxoflinksisasure-firesignofphonylinks.

　　193.PenguinPenalty:SitesthatwerehitbyGooglePenguinaresignificantlylessvisibleinsearch.

　　194.LinkProfilewithHigh%ofLowQualityLinks:LotsoflinksfromsourcescommonlyusedbyblackhatSEOs(likeblogcommentsandforumprofiles)maybeasignofgamingthesystem.

　　195.LinkingDomainRelevancy:ThefamousanalysisbyMicroSiteMasters.comfoundthatsiteswithanunnaturallyhighamountoflinksfromunrelatedsitesweremoresusceptibletoPenguin.

　　196.UnnaturalLinksWarning:Googlesentoutthousandsof“GoogleWebmasterToolsnoticeofdetectedunnaturallinks”messages.Thisusuallyprecedesarankingdrop,althoughnot100%ofthetime.

　　197.LinksfromtheSameClassCIP:GettinganunnaturalamountoflinksfromsitesonthesameserverIPmaybeasignofblognetworklinkbuilding.

　　198.“Poison”AnchorText:Having“poison”anchortext(especiallypharmacykeywords)pointedtoyoursitemaybeasignofspamorahackedsite.Eitherway,itcanhurtyoursite’sranking.

　　199.ManualPenalty:Googlehasbeenknowntohandoutmanualpenalties,likeinthewell-publicizedInterflorafiasco.

　　200.SellingLinks:SellinglinkscandefinitelyimpacttoolbarPageRankandmayhurtyoursearchvisibility.

　　201.GoogleSandbox:NewsitesthatgetasuddeninfluxoflinksaresometimesputintheGoogleSandbox,whichtemporarilylimitssearchvisibility.

　　202.GoogleDance:TheGoogleDancecantemporarilyshakeuprankings.AccordingtoaGooglePatent,thismaybeawayforthemtodeterminewhetherornotasiteistryingtogamethealgorithm.

　　203.DisavowTool:UseoftheDisavowToolmayremoveamanualoralgorithmicpenaltyforsitesthatwerethevictimsofnegativeSEO.

　　204.ReconsiderationRequest:Asuccessfulreconsiderationrequestcanliftapenalty.

　　更多详情请查察：https://www.googledl.com/

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