diff --git a/android/jni/com/mapswithme/maps/Sponsored.cpp b/android/jni/com/mapswithme/maps/Sponsored.cpp
index 647ed3eaf8..fd7e8a6bd4 100644
--- a/android/jni/com/mapswithme/maps/Sponsored.cpp
+++ b/android/jni/com/mapswithme/maps/Sponsored.cpp
@@ -68,11 +68,13 @@ void PrepareClassRefs(JNIEnv * env, jclass sponsoredClass)
       "placepage/Sponsored$FacilityType;[Lcom/mapswithme/maps/review/Review;[Lcom/mapswithme/"
       "maps/widget/placepage/Sponsored$NearbyObject;J)V");
 
-  // Sponsored(String rating, String price, String urlBook, String urlDescription)
+  //  Sponsored(String rating, int impress, String price, String url, String deepLink,
+  //            String descriptionUrl, String moreUrl, String reviewUrl, int type,
+  //            int partnerIndex, String partnerName)
   g_sponsoredClassConstructor = jni::GetConstructorID(
       env, g_sponsoredClass,
       "(Ljava/lang/String;ILjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;"
-      "Ljava/lang/String;IILjava/lang/String;)V");
+      "Ljava/lang/String;Ljava/lang/String;IILjava/lang/String;)V");
   // static void onPriceReceived(final String id, final String price, final String currency)
   g_priceCallback =
       jni::GetStaticMethodID(env, g_sponsoredClass, "onPriceReceived",
@@ -136,6 +138,7 @@ JNIEXPORT jobject JNICALL Java_com_mapswithme_maps_widget_placepage_Sponsored_na
                         jni::ToJavaString(env, ppInfo.GetSponsoredUrl()),
                         jni::ToJavaString(env, ppInfo.GetSponsoredDeepLink()),
                         jni::ToJavaString(env, ppInfo.GetSponsoredDescriptionUrl()),
+                        jni::ToJavaString(env, ppInfo.GetSponsoredMoreUrl()),
                         jni::ToJavaString(env, ppInfo.GetSponsoredReviewUrl()),
                         static_cast<jint>(ppInfo.GetSponsoredType()),
                         static_cast<jint>(ppInfo.GetPartnerIndex()),
diff --git a/android/src/com/mapswithme/maps/widget/placepage/PlacePageView.java b/android/src/com/mapswithme/maps/widget/placepage/PlacePageView.java
index 1b88edde01..1530bc07d9 100644
--- a/android/src/com/mapswithme/maps/widget/placepage/PlacePageView.java
+++ b/android/src/com/mapswithme/maps/widget/placepage/PlacePageView.java
@@ -990,7 +990,7 @@ public class PlacePageView extends NestedScrollView
 //  TODO go to selected object on map
   }
 
-  private void onSponsoredClick(final boolean book, final boolean isMoreDetails)
+  private void onSponsoredClick(final boolean book, final boolean isDetails)
   {
     Utils.checkConnection(
         getActivity(), R.string.common_check_internet_connection_dialog, new Utils.Proc<Boolean>()
@@ -1020,7 +1020,7 @@ public class PlacePageView extends NestedScrollView
                 }
                 else
                 {
-                  String event = isMoreDetails ? PP_SPONSORED_DETAILS : PP_HOTEL_DESCRIPTION_LAND;
+                  String event = isDetails ? PP_SPONSORED_DETAILS : PP_HOTEL_DESCRIPTION_LAND;
                   Statistics.INSTANCE.trackHotelEvent(event, info, mMapObject);
                 }
                 break;
@@ -1047,7 +1047,11 @@ public class PlacePageView extends NestedScrollView
               }
               else
               {
-                Utils.openUrl(getContext(), book ? info.getUrl() : info.getDescriptionUrl());
+                if (book)
+                  Utils.openUrl(getContext(), info.getUrl());
+                else
+                  Utils.openUrl(getContext(), isDetails ? info.getDescriptionUrl()
+                                                            : info.getMoreUrl());
               }
             }
             catch (ActivityNotFoundException e)
diff --git a/android/src/com/mapswithme/maps/widget/placepage/Sponsored.java b/android/src/com/mapswithme/maps/widget/placepage/Sponsored.java
index 4a7403540d..13d23f2fe9 100644
--- a/android/src/com/mapswithme/maps/widget/placepage/Sponsored.java
+++ b/android/src/com/mapswithme/maps/widget/placepage/Sponsored.java
@@ -189,6 +189,8 @@ public final class Sponsored
   @NonNull
   private final String mDescriptionUrl;
   @NonNull
+  private final String mMoreUrl;
+  @NonNull
   private final String mReviewUrl;
   @SponsoredType
   private final int mType;
@@ -198,8 +200,8 @@ public final class Sponsored
 
   private Sponsored(@NonNull String rating, @UGC.Impress int impress, @NonNull String price,
                     @NonNull String url, @NonNull String deepLink, @NonNull String descriptionUrl,
-                    @NonNull String reviewUrl, @SponsoredType int type, int partnerIndex,
-                    @NonNull String partnerName)
+                    @NonNull String moreUrl, @NonNull String reviewUrl, @SponsoredType int type,
+                    int partnerIndex, @NonNull String partnerName)
   {
     mRating = rating;
     mImpress = impress;
@@ -207,6 +209,7 @@ public final class Sponsored
     mUrl = url;
     mDeepLink = deepLink;
     mDescriptionUrl = descriptionUrl;
+    mMoreUrl = moreUrl;
     mReviewUrl = reviewUrl;
     mType = type;
     mPartnerIndex = partnerIndex;
@@ -260,6 +263,12 @@ public final class Sponsored
     return mDescriptionUrl;
   }
 
+  @NonNull
+  String getMoreUrl()
+  {
+    return mMoreUrl;
+  }
+
   @NonNull
   String getReviewUrl()
   {
diff --git a/coding/sha1.cpp b/coding/sha1.cpp
index a6182d497d..b1c412eed0 100644
--- a/coding/sha1.cpp
+++ b/coding/sha1.cpp
@@ -69,6 +69,18 @@ SHA1::Hash SHA1::CalculateForString(std::string const & str)
   return result;
 }
 
+// static
+std::string SHA1::CalculateForStringFormatted(std::string const & str)
+{
+  auto const hashRaw = CalculateForString(str);
+
+  std::ostringstream os;
+  for (auto const value : hashRaw)
+    os << std::hex << static_cast<int>(value);
+
+  return os.str();
+}
+
 // static
 std::string SHA1::CalculateBase64ForString(std::string const & str)
 {
diff --git a/coding/sha1.hpp b/coding/sha1.hpp
index e0ad4ad225..842eb95466 100644
--- a/coding/sha1.hpp
+++ b/coding/sha1.hpp
@@ -15,6 +15,8 @@ public:
   static std::string CalculateBase64(std::string const & filePath);
 
   static Hash CalculateForString(std::string const & str);
+  // String representation of 40-number hex digit.
+  static std::string CalculateForStringFormatted(std::string const & str);
   static std::string CalculateBase64ForString(std::string const & str);
 };
 }  // coding
diff --git a/iphone/Maps/Common/Statistics/StatisticsStrings.h b/iphone/Maps/Common/Statistics/StatisticsStrings.h
index a49d0731f2..1ca5f95735 100644
--- a/iphone/Maps/Common/Statistics/StatisticsStrings.h
+++ b/iphone/Maps/Common/Statistics/StatisticsStrings.h
@@ -264,6 +264,7 @@ static NSString * const kStatPlacePageHotelBook = @"Placepage_Hotel_book";
 static NSString * const kStatPlacePageHotelDetails = @"Placepage_Hotel_details";
 static NSString * const kStatPlacePageHotelFacilities = @"PlacePage_Hotel_Facilities_open";
 static NSString * const kStatPlacePageHotelGallery = @"PlacePage_Hotel_Gallery_open";
+static NSString * const kStatPlacePageHotelMore = @"PlacePage_Hotel_Description_land";
 static NSString * const kStatPlacePageHotelReviews = @"PlacePage_Hotel_Reviews_land";
 static NSString * const kStatPlacePageHotelSearch = @"Search.Booking.Com";
 static NSString * const kStatPlacePageNonBuilding = @"placepage_nonbuilding";
diff --git a/iphone/Maps/UI/PlacePage/MWMPlacePageButtonsProtocol.h b/iphone/Maps/UI/PlacePage/MWMPlacePageButtonsProtocol.h
index 306197e9e9..610967743b 100644
--- a/iphone/Maps/UI/PlacePage/MWMPlacePageButtonsProtocol.h
+++ b/iphone/Maps/UI/PlacePage/MWMPlacePageButtonsProtocol.h
@@ -11,7 +11,10 @@ typedef UIView * _Nullable (^MWMPlacePageButtonsDismissBlock)(NSInteger);
 - (void)editPlace;
 - (void)addPlace;
 - (void)addBusiness;
-- (void)book:(BOOL)isDescription;
+- (void)book;
+- (void)openDescriptionUrl;
+- (void)openMoreUrl;
+- (void)openReviewUrl;
 - (void)editBookmark;
 - (void)orderTaxi:(MWMPlacePageTaxiProvider)provider;
 - (void)showAllFacilities;
diff --git a/iphone/Maps/UI/PlacePage/MWMPlacePageData.h b/iphone/Maps/UI/PlacePage/MWMPlacePageData.h
index 9cf9107be4..1b34b26bd3 100644
--- a/iphone/Maps/UI/PlacePage/MWMPlacePageData.h
+++ b/iphone/Maps/UI/PlacePage/MWMPlacePageData.h
@@ -179,6 +179,8 @@ using NewSectionsAreReady = void (^)(NSRange const & range, MWMPlacePageData * d
 - (NSURL *)sponsoredURL;
 - (NSURL *)deepLink;
 - (NSURL *)sponsoredDescriptionURL;
+- (NSURL *)sponsoredMoreURL;
+- (NSURL *)sponsoredReviewURL;
 - (NSURL *)bookingSearchURL;
 - (NSString *)sponsoredId;
 - (NSString *)hotelDescription;
diff --git a/iphone/Maps/UI/PlacePage/MWMPlacePageData.mm b/iphone/Maps/UI/PlacePage/MWMPlacePageData.mm
index 11e4c19626..1719d33971 100644
--- a/iphone/Maps/UI/PlacePage/MWMPlacePageData.mm
+++ b/iphone/Maps/UI/PlacePage/MWMPlacePageData.mm
@@ -562,6 +562,20 @@ NSString * const kUserDefaultsLatLonAsDMSKey = @"UserDefaultsLatLonAsDMS";
              : nil;
 }
 
+- (NSURL *)sponsoredMoreURL
+{
+  return m_info.IsSponsored()
+             ? [NSURL URLWithString:@(m_info.GetSponsoredMoreUrl().c_str())]
+             : nil;
+}
+
+- (NSURL *)sponsoredReviewURL
+{
+  return m_info.IsSponsored()
+             ? [NSURL URLWithString:@(m_info.GetSponsoredReviewUrl().c_str())]
+             : nil;
+}
+
 - (NSURL *)bookingSearchURL
 {
   auto const & url = m_info.GetBookingSearchUrl();
diff --git a/iphone/Maps/UI/PlacePage/MWMPlacePageManager.mm b/iphone/Maps/UI/PlacePage/MWMPlacePageManager.mm
index 28562bd149..028d300ed7 100644
--- a/iphone/Maps/UI/PlacePage/MWMPlacePageManager.mm
+++ b/iphone/Maps/UI/PlacePage/MWMPlacePageManager.mm
@@ -488,7 +488,7 @@ void RegisterEventIfPossible(eye::MapObject::Event::Type const type, place_page:
   [self.ownerViewController openFullPlaceDescriptionWithHtml:htmlString];
 }
 
-- (void)book:(BOOL)isDescription
+- (void)book
 {
   auto data = self.data;
   if (!data)
@@ -509,24 +509,52 @@ void RegisterEventIfPossible(eye::MapObject::Event::Type const type, place_page:
   }
   logSponsoredEvent(data, eventName);
   
-  if (!isDescription && data.isPartnerAppInstalled)
-  {
-    [UIApplication.sharedApplication openURL:data.deepLink options:@{} completionHandler:nil];
-    return;
-  }
-  
-  NSURL * url = isDescription ? data.sponsoredDescriptionURL : data.sponsoredURL;
+  NSURL * url = data.isPartnerAppInstalled ? data.deepLink : data.sponsoredURL;
   NSAssert(url, @"Sponsored url can't be nil!");
   
   [UIApplication.sharedApplication openURL:url options:@{} completionHandler:nil];
 }
 
+- (void)openDescriptionUrl
+{
+  auto data = self.data;
+  if (!data)
+    return;
+  
+  logSponsoredEvent(data, kStatPlacePageHotelDetails);
+  [UIApplication.sharedApplication openURL:data.sponsoredDescriptionURL
+                                   options:@{} completionHandler:nil];
+}
+
+- (void)openMoreUrl
+{
+  auto data = self.data;
+  if (!data)
+    return;
+  
+  logSponsoredEvent(data, kStatPlacePageHotelMore);
+  [UIApplication.sharedApplication openURL:data.sponsoredMoreURL
+                                   options:@{} completionHandler:nil];
+}
+
+- (void)openReviewUrl
+{
+  auto data = self.data;
+  if (!data)
+    return;
+  
+  logSponsoredEvent(data, kStatPlacePageHotelReviews);
+  [UIApplication.sharedApplication openURL:data.sponsoredReviewURL
+                                   options:@{} completionHandler:nil];
+}
+
 - (void)searchBookingHotels
 {
   auto data = self.data;
   if (!data)
     return;
-  logSponsoredEvent(data, kStatPlacePageHotelSearch);
+  
+  logSponsoredEvent(data, kStatPlacePageHotelBook);
   NSURL * url = data.bookingSearchURL;
   NSAssert(url, @"Search url can't be nil!");
   [UIApplication.sharedApplication openURL:url options:@{} completionHandler:nil];
diff --git a/iphone/Maps/UI/PlacePage/MWMPlacePageProtocol.h b/iphone/Maps/UI/PlacePage/MWMPlacePageProtocol.h
index f790cc32cf..e7cf1434cb 100644
--- a/iphone/Maps/UI/PlacePage/MWMPlacePageProtocol.h
+++ b/iphone/Maps/UI/PlacePage/MWMPlacePageProtocol.h
@@ -16,7 +16,7 @@
 - (void)removeBookmark;
 
 - (void)call;
-- (void)book:(BOOL)isDecription;
+- (void)book;
 - (void)searchBookingHotels;
 
 - (void)openPartner;
diff --git a/iphone/Maps/UI/PlacePage/PlacePageLayout/ActionBar/MWMPlacePageActionBar.mm b/iphone/Maps/UI/PlacePage/PlacePageLayout/ActionBar/MWMPlacePageActionBar.mm
index cab5bf4247..4ab8b3dc88 100644
--- a/iphone/Maps/UI/PlacePage/PlacePageLayout/ActionBar/MWMPlacePageActionBar.mm
+++ b/iphone/Maps/UI/PlacePage/PlacePageLayout/ActionBar/MWMPlacePageActionBar.mm
@@ -227,7 +227,7 @@
   {
   case EButton::Download: [delegate downloadSelectedArea]; break;
   case EButton::Opentable:
-  case EButton::Booking: [delegate book:NO]; break;
+  case EButton::Booking: [delegate book]; break;
   case EButton::BookingSearch: [delegate searchBookingHotels]; break;
   case EButton::Call: [delegate call]; break;
   case EButton::Bookmark:
diff --git a/iphone/Maps/UI/PlacePage/PlacePageLayout/MWMPlacePageLayout.mm b/iphone/Maps/UI/PlacePage/PlacePageLayout/MWMPlacePageLayout.mm
index 1559993b8e..01a611c6bc 100644
--- a/iphone/Maps/UI/PlacePage/PlacePageLayout/MWMPlacePageLayout.mm
+++ b/iphone/Maps/UI/PlacePage/PlacePageLayout/MWMPlacePageLayout.mm
@@ -413,7 +413,7 @@ map<MetainfoRows, Class> const kMetaInfoCells = {
               case ButtonsRows::AddPlace: [delegate addPlace]; break;
               case ButtonsRows::EditPlace: [delegate editPlace]; break;
               case ButtonsRows::AddBusiness: [delegate addBusiness]; break;
-              case ButtonsRows::HotelDescription: [delegate book:NO]; break;
+              case ButtonsRows::HotelDescription: [delegate openDescriptionUrl]; break;
               case ButtonsRows::Other: NSAssert(false, @"Incorrect row");
               }
             }];
@@ -483,7 +483,7 @@ map<MetainfoRows, Class> const kMetaInfoCells = {
 
         [c configWithTitle:L(@"reviews_on_bookingcom")
                      action:^{
-                       [delegate book:NO];
+                       [delegate openReviewUrl];
                      }
               isInsetButton:NO];
         return c;
@@ -510,7 +510,7 @@ map<MetainfoRows, Class> const kMetaInfoCells = {
             [tableView dequeueReusableCellWithCellClass:cls indexPath:indexPath]);
         [c configWithTitle:L(@"more_on_bookingcom")
                      action:^{
-                       [delegate book:NO];
+                       [delegate openMoreUrl];
                        ;
                      }
               isInsetButton:NO];
diff --git a/map/framework.cpp b/map/framework.cpp
index 56a7f97bfd..2664e48280 100644
--- a/map/framework.cpp
+++ b/map/framework.cpp
@@ -885,6 +885,7 @@ void Framework::FillInfoFromFeatureType(FeatureType & ft, place_page::Info & inf
     info.SetSponsoredUrl(m_bookingApi->GetBookHotelUrl(baseUrl));
     info.SetSponsoredDeepLink(m_bookingApi->GetDeepLink(hotelId));
     info.SetSponsoredDescriptionUrl(m_bookingApi->GetDescriptionUrl(baseUrl));
+    info.SetSponsoredMoreUrl(m_bookingApi->GetMoreUrl(baseUrl));
     info.SetSponsoredReviewUrl(m_bookingApi->GetHotelReviewsUrl(hotelId, baseUrl));
     if (!m_bookingAvailabilityParams.IsEmpty())
     {
@@ -900,6 +901,8 @@ void Framework::FillInfoFromFeatureType(FeatureType & ft, place_page::Info & inf
                 bind(&Info::SetSponsoredUrl, &info, _1));
       urlSetter(bind(&Info::GetSponsoredDescriptionUrl, &info),
                 bind(&Info::SetSponsoredDescriptionUrl, &info, _1));
+      urlSetter(bind(&Info::GetSponsoredMoreUrl, &info),
+                bind(&Info::SetSponsoredMoreUrl, &info, _1));
       urlSetter(bind(&Info::GetSponsoredReviewUrl, &info),
                 bind(&Info::SetSponsoredReviewUrl, &info, _1));
       urlSetter(bind(&Info::GetSponsoredDeepLink, &info),
diff --git a/map/place_page_info.hpp b/map/place_page_info.hpp
index 2893bcf856..04268f9763 100644
--- a/map/place_page_info.hpp
+++ b/map/place_page_info.hpp
@@ -156,6 +156,8 @@ public:
   std::string const & GetSponsoredDeepLink() const { return m_sponsoredDeepLink; }
   void SetSponsoredDescriptionUrl(std::string const & url) { m_sponsoredDescriptionUrl = url; }
   std::string const & GetSponsoredDescriptionUrl() const { return m_sponsoredDescriptionUrl; }
+  void SetSponsoredMoreUrl(std::string const & url) { m_sponsoredMoreUrl = url; }
+  std::string const & GetSponsoredMoreUrl() const { return m_sponsoredMoreUrl; }
   void SetSponsoredReviewUrl(std::string const & url) { m_sponsoredReviewUrl = url; }
   std::string const & GetSponsoredReviewUrl() const { return m_sponsoredReviewUrl; }
   void SetSponsoredType(SponsoredType type) { m_sponsoredType = type; }
@@ -314,6 +316,7 @@ private:
   std::string m_sponsoredUrl;
   std::string m_sponsoredDeepLink;
   std::string m_sponsoredDescriptionUrl;
+  std::string m_sponsoredMoreUrl;
   std::string m_sponsoredReviewUrl;
 
   /// Booking
diff --git a/partners_api/booking_api.cpp b/partners_api/booking_api.cpp
index 48258aa7c0..0d85594e9b 100644
--- a/partners_api/booking_api.cpp
+++ b/partners_api/booking_api.cpp
@@ -5,6 +5,7 @@
 #include "platform/platform.hpp"
 
 #include "coding/url_encode.hpp"
+#include "coding/sha1.hpp"
 
 #include "base/get_time.hpp"
 #include "base/logging.hpp"
@@ -393,6 +394,30 @@ string ApplyAvailabilityParamsDeep(string const & url, AvailabilityParams const
 
   return url::Make(url, p);
 }
+
+string AppendAid(string const & baseUrl)
+{
+  ASSERT(!baseUrl.empty(), ());
+  url::Params p = {{"aid", BOOKING_AFFILIATE_ID}};
+  return url::Make(baseUrl, p);
+}
+
+string ApplendLabel(string const & baseUrl, string const & labelSource)
+{
+  ASSERT(!baseUrl.empty(), ());
+  ASSERT(!labelSource.empty(), ());
+  auto static const kDeviceIdHash =
+      coding::SHA1::CalculateForStringFormatted(GetPlatform().UniqueClientId());
+
+  url::Params const p = {{"label", labelSource + "-" + UrlEncode(kDeviceIdHash)}};
+
+  return url::Make(baseUrl, p);
+}
+
+string AppendAidAndLabel(string const & baseUrl, string const & labelSource)
+{
+  return ApplendLabel(AppendAid(baseUrl), labelSource);
+}
 }  // namespace
 
 namespace booking
@@ -436,7 +461,7 @@ bool RawApi::BlockAvailability(BlockParams const & params, string & result)
 string Api::GetBookHotelUrl(string const & baseUrl) const
 {
   ASSERT(!baseUrl.empty(), ());
-  return GetDescriptionUrl(baseUrl);
+  return AppendAidAndLabel(baseUrl, "ppActionButton");
 }
 
 string Api::GetDeepLink(string const & hotelId) const
@@ -452,34 +477,39 @@ string Api::GetDeepLink(string const & hotelId) const
 string Api::GetDescriptionUrl(string const & baseUrl) const
 {
   ASSERT(!baseUrl.empty(), ());
-  return baseUrl + string("?aid=") + BOOKING_AFFILIATE_ID;
+  return AppendAidAndLabel(baseUrl, "ppDetails");
+}
+
+string Api::GetMoreUrl(string const & baseUrl) const
+{
+  ASSERT(!baseUrl.empty(), ());
+  return AppendAidAndLabel(baseUrl, "ppMoreInfo");
 }
 
 string Api::GetHotelReviewsUrl(string const & hotelId, string const & baseUrl) const
 {
   ASSERT(!baseUrl.empty(), ());
   ASSERT(!hotelId.empty(), ());
-  ostringstream os;
-  os << GetDescriptionUrl(baseUrl) << "&tab=4&label=hotel-" << hotelId << "_reviews";
-  return os.str();
+
+  url::Params const p = {{"tab", "4"}};
+  return url::Make(AppendAidAndLabel(baseUrl, "ppReviews"), p);
 }
 
 string Api::GetSearchUrl(string const & city, string const & name) const
 {
   if (city.empty() || name.empty())
-    return "";
+    return {};
 
   ostringstream paramStream;
   paramStream << city << " " << name;
 
   auto const urlEncodedParams = UrlEncode(paramStream.str());
 
-  ostringstream resultStream;
-  if (!urlEncodedParams.empty())
-    resultStream << kSearchBaseUrl << "?aid=" << BOOKING_AFFILIATE_ID << ";" << "ss="
-                 << urlEncodedParams << ";";
+  if (urlEncodedParams.empty())
+    return {};
 
-  return resultStream.str();
+  url::Params p = {{"&ss=", urlEncodedParams}};
+  return url::Make(AppendAidAndLabel(kSearchBaseUrl, "ppReviews"), p);
 }
 
 string Api::ApplyAvailabilityParams(string const & url, AvailabilityParams const & params) const
diff --git a/partners_api/booking_api.hpp b/partners_api/booking_api.hpp
index f0c88626dd..f70577a664 100644
--- a/partners_api/booking_api.hpp
+++ b/partners_api/booking_api.hpp
@@ -135,6 +135,7 @@ public:
   std::string GetBookHotelUrl(std::string const & baseUrl) const;
   std::string GetDeepLink(std::string const & hotelId) const;
   std::string GetDescriptionUrl(std::string const & baseUrl) const;
+  std::string GetMoreUrl(string const & baseUrl) const;
   std::string GetHotelReviewsUrl(std::string const & hotelId, std::string const & baseUrl) const;
   std::string GetSearchUrl(std::string const & city, std::string const & name) const;
   std::string ApplyAvailabilityParams(std::string const & url,