上記のサイトにも記載されていますが
チェックはサーチコンソールでもできます
ただ１日１０回と限られているので大量にチェックしたい場合は
google先生が用意しているプログラムを実行する事で確認ができるそうです
Googlebotについて
Chrome 41（M41）に基づくWebレンダリングサービス（WRS）をしている
Googlebotと同じにするにはサポートしていない機能（indexdb、WebSQL、セッション、Cookie、WebGl..etcなど）も無効にする必要があります
前提
node.jsは8以上がはいっている前提です
gitがインストールされている
→SourceTreeをいれれば動くはず・・・
google先生のプログラムもrobots.txtに対応していないので注意する必要がある
再起の制限がないみたいなので対象は記事にする
サイトトップでやるとなかなか返ってこない
プログラムをいれる
git clone https://github.com/GoogleChromeLabs/puppeteer-examples cd puppeteer-examples npm install
チェックするURLを変更して実行する
デフォルトの場合はgoogleのchromeのページなので
自分がチェックしたURLに変える
URLは環境変数にいれればOK
windowsのpowershell場合
$env:URL="https://masalib.hatenablog.com/entry/2018/07/12/100000"
node google_search_features.js
linux系の場合
URL="https://masalib.hatenablog.com/entry/2018/07/12/100000" node google_search_features.js
チェックした結果（linux系の場合）
puppeteer-examples git:(master) ✗ URL="https://masalib.hatenablog.com/entry/2018/07/12/100000" node google_search_features.js Trace started. Navigating to https://masalib.hatenablog.com/entry/2018/07/12/100000 Waiting for page to be idle... Trace complete. CAREFUL: using 130 HTML/JS, 126 CSS features. Some features are not supported by the Google Search crawler. The bot runs Chrome 41, which may not render your page correctly when it's being indexed. More info at https://developers.google.com/search/docs/guides/rendering. Features used which are not supported by Google Search: - AddEventListenerPassiveTrue: https://caniuse.com/#feat=passive-event-listener - AddEventListenerThirdArgumentIsObject: https://caniuse.com/#feat=once-event-listener - Fetch: https://caniuse.com/#feat=fetch - HTMLSlotElement: https://caniuse.com/#feat=shadowdomv1 - IntersectionObserver_Constructor: https://caniuse.com/#feat=intersectionobserver - LinkRelPreload: https://caniuse.com/#feat=link-rel-preload All features used on the page: - AddEventListenerPassiveTrue - AddEventListenerThirdArgumentIsObject - AuxclickAddListenerCount - BarPropLocationbar - BarPropMenubar - BarPropScrollbars - BarPropStatusbar - BarPropToolbar - BaseElement - BlinkMacSystemFont - CSPWithUnsafeDynamic - CSPWithUnsafeEval - CSSAtRuleCharset - CSSAtRuleFontFace - CSSAtRuleKeyframes - CSSAtRuleMedia - CSSAtRuleWebkitKeyframes - CSSFlexibleBox - CSSGradient - CSSSelectorPseudoFocus - CSSSelectorWebkitInnerSpinButton - CSSSelectorWebkitSearchCancelButton - CSSSelectorWebkitUnknownPseudo - CSSValueAppearanceNone - CanvasToDataURL - CleanScriptElementWithNonce - ContentSecurityPolicy - ContentSecurityPolicyReportOnly - ContentSecurityPolicyWithBaseElement - CookieGet - CookieSet - CrossOriginApplicationScript - CrossOriginHTMLIFrameElementContentDocument - CrossOriginMainFrameNulledNameAccessed - CrossOriginPropertyAccess - CrossOriginTextPlain - CrossOriginTextScript - CryptoGetRandomValues - DeprecatedWebKitGradient - DocumentAll - DocumentBeforeUnloadRegistered - DocumentDomainSetWithDefaultPort - DocumentPageHideRegistered - DocumentSetDomain - DocumentUnloadRegistered - ElementPrefixedMatchesSelector - FeaturePolicyAllowAttribute - Fetch - FontShapingNotDefGlyphObserved - FormElement - FormsSubmitted - HTMLCanvasElement - HTMLContentElement - HTMLElementDeprecatedWidth - HTMLElementInnerText - HTMLSlotElement - HasBeforeOrAfterPseudoElement - HasIDClassTagAttribute - IntersectionObserver_Constructor - LangAttribute - LangAttributeDoesNotMatchToUILocale - LangAttributeOnHTML - LinkRelDnsPrefetch - LinkRelPreload - LocationOrigin - MetaRefresh - MixedContentBlockable - MixedContentPresent - NamedAccessOnWindow_ChildBrowsingContext - NavigatorDeviceMemory - NavigatorProductSub - NavigatorVendor - NavigatorVendorSub - NetInfo - NetInfoDownlink - NetInfoEffectiveType - NetInfoOnChange - NetInfoRtt - NetInfoSaveData - OBSOLETE_DocumentOpen - PendingStylesheetAddedAfterBodyStarted - PerformanceTimeline - PrefixedDevicePixelRatioMediaFeature - PrefixedMinDevicePixelRatioMediaFeature - PrefixedStorageQuota - PresentationDefaultRequest - QuirksModeDocument - RemoveEventListenerThirdArgumentIsObject - ReportUriSingleEndpoint - SVGSVGElement - SVGSVGElementInDocument - SVGSVGElementInXMLDocument - SameOriginApplicationScript - SameOriginTextScript - ScrollToFragmentFailWithASCII - ScrollToFragmentFailWithUTF8 - ScrollToFragmentRequested - ScrollToFragmentSucceedWithRaw - SecureContextCheckFailed - SecureContextCheckForSandboxedOriginFailed - SecureContextCheckPassed - SetReferrerPolicy - SingleOriginInTimingAllowOrigin - StarInTimingAllowOrigin - SubFrameBeforeUnloadRegistered - TimeElement - UnprefixedRequestAnimationFrame - V8CustomEvent_InitCustomEvent_Method - V8DeoptimizerDisableSpeculation - V8Document_Scripts_AttributeGetter - V8Element_GetBoundingClientRect_Method - V8Element_GetClientRects_Method - V8ErrorStackTraceLimit - V8HTMLComment - V8LegacyDateParser - V8MessageChannel_Constructor - V8MessagePort_PostMessage_Method - V8Performance_Timing_AttributeGetter - V8Screen_AvailTop_AttributeGetter - V8SloppyMode - V8StrictMode - WindowPostMessage - WindowScreenLeft - WindowScreenTop - XMLDocument - XMLHttpRequestAsynchronous - XMLHttpRequestCrossOriginWithCredentials - XSSAuditorDisabled - XSSAuditorEnabledBlock - XSSAuditorEnabledFilter - CSS `alias-webkit-border-bottom-left-radius` - CSS `alias-webkit-border-bottom-right-radius` - CSS `alias-webkit-border-radius` - CSS `alias-webkit-border-top-left-radius` - CSS `alias-webkit-border-top-right-radius` - CSS `alias-webkit-box-shadow` - CSS `alias-webkit-box-sizing` - CSS `alias-webkit-text-size-adjust` - CSS `alias-webkit-transform` - CSS `alias-webkit-transition` - CSS `alias-webkit-transition-property` - CSS `align-items` - CSS `animation` - CSS `animation-duration` - CSS `animation-name` - CSS `background` - CSS `background-clip` - CSS `background-color` - CSS `background-image` - CSS `background-position` - CSS `background-repeat` - CSS `background-size` - CSS `border` - CSS `border-bottom` - CSS `border-bottom-left-radius` - CSS `border-bottom-right-radius` - CSS `border-collapse` - CSS `border-color` - CSS `border-image` - CSS `border-left` - CSS `border-left-color` - CSS `border-radius` - CSS `border-right` - CSS `border-right-color` - CSS `border-spacing` - CSS `border-style` - CSS `border-top` - CSS `border-top-color` - CSS `border-top-left-radius` - CSS `border-top-right-radius` - CSS `border-width` - CSS `bottom` - CSS `box-shadow` - CSS `box-sizing` - CSS `clear` - CSS `clip` - CSS `color` - CSS `content` - CSS `cursor` - CSS `direction` - CSS `display` - CSS `fill` - CSS `fill-opacity` - CSS `flex-direction` - CSS `float` - CSS `font` - CSS `font-family` - CSS `font-size` - CSS `font-style` - CSS `font-variant` - CSS `font-weight` - CSS `height` - CSS `image-rendering` - CSS `justify-content` - CSS `left` - CSS `letter-spacing` - CSS `line-height` - CSS `list-style` - CSS `list-style-type` - CSS `margin` - CSS `margin-bottom` - CSS `margin-left` - CSS `margin-right` - CSS `margin-top` - CSS `max-height` - CSS `max-width` - CSS `min-height` - CSS `min-width` - CSS `opacity` - CSS `outline` - CSS `outline-color` - CSS `outline-style` - CSS `overflow` - CSS `overflow-x` - CSS `padding` - CSS `padding-bottom` - CSS `padding-left` - CSS `padding-right` - CSS `padding-top` - CSS `pointer-events` - CSS `position` - CSS `right` - CSS `stroke` - CSS `stroke-dasharray` - CSS `stroke-dashoffset` - CSS `stroke-width` - CSS `text-align` - CSS `text-decoration` - CSS `text-indent` - CSS `text-overflow` - CSS `text-rendering` - CSS `text-shadow` - CSS `text-transform` - CSS `top` - CSS `transform` - CSS `transform-origin` - CSS `transition` - CSS `transition-property` - CSS `transition-timing-function` - CSS `unicode-bidi` - CSS `user-select` - CSS `vertical-align` - CSS `visibility` - CSS `webkit-appearance` - CSS `webkit-background-clip` - CSS `webkit-box-direction` - CSS `webkit-box-orient` - CSS `webkit-filter` - CSS `webkit-font-smoothing` - CSS `webkit-user-select` - CSS `white-space` - CSS `width` - CSS `word-spacing` - CSS `word-wrap` - CSS `z-index` - CSS `zoom`
AddEventListenerPassiveTrueなど対応していないことがわかった
たぶんデザインの部分かな・・・・調べてみるしかないな
