diff --git a/Telegram/SourceFiles/boxes/addcontactbox.cpp b/Telegram/SourceFiles/boxes/addcontactbox.cpp
index f78a3fea1..c109b46e7 100644
--- a/Telegram/SourceFiles/boxes/addcontactbox.cpp
+++ b/Telegram/SourceFiles/boxes/addcontactbox.cpp
@@ -1163,7 +1163,7 @@ void RevokePublicLinkBox::mouseReleaseEvent(QMouseEvent *e) {
 	setCursor((_selected || _pressed) ? style::cur_pointer : style::cur_default);
 	if (pressed && pressed == _selected) {
 		auto text_method = pressed->isMegagroup() ? lng_channels_too_much_public_revoke_confirm_group : lng_channels_too_much_public_revoke_confirm_channel;
-		auto text = text_method(lt_link, CreateInternalLink(pressed->userName()), lt_group, pressed->name);
+		auto text = text_method(lt_link, Messenger::Instance().createInternalLink(pressed->userName()), lt_group, pressed->name);
 		auto confirmText = lang(lng_channels_too_much_public_revoke);
 		_weakRevokeConfirmBox = Ui::show(Box<ConfirmBox>(text, confirmText, base::lambda_guarded(this, [this, pressed]() {
 			if (_revokeRequestId) return;
@@ -1223,7 +1223,7 @@ void RevokePublicLinkBox::getPublicDone(const MTPmessages_Chats &result) {
 				ChatRow row;
 				row.peer = peer;
 				row.name.setText(st::contactsNameStyle, peer->name, _textNameOptions);
-				row.status.setText(st::defaultTextStyle, CreateInternalLink(textcmdLink(1, peer->userName())), _textDlgOptions);
+				row.status.setText(st::defaultTextStyle, Messenger::Instance().createInternalLink(textcmdLink(1, peer->userName())), _textDlgOptions);
 				_rows.push_back(std::move(row));
 			}
 		}
diff --git a/Telegram/SourceFiles/boxes/contactsbox.cpp b/Telegram/SourceFiles/boxes/contactsbox.cpp
index 24ef21c4c..f00dd0655 100644
--- a/Telegram/SourceFiles/boxes/contactsbox.cpp
+++ b/Telegram/SourceFiles/boxes/contactsbox.cpp
@@ -46,7 +46,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "storage/file_download.h"
 
 QString PeerFloodErrorText(PeerFloodType type) {
-	auto link = textcmdLink(CreateInternalLinkHttps(qsl("spambot")), lang(lng_cant_more_info));
+	auto link = textcmdLink(Messenger::Instance().createInternalLinkFull(qsl("spambot")), lang(lng_cant_more_info));
 	if (type == PeerFloodType::InviteGroup) {
 		return lng_cant_invite_not_contact(lt_more_info, link);
 	}
diff --git a/Telegram/SourceFiles/boxes/sharebox.cpp b/Telegram/SourceFiles/boxes/sharebox.cpp
index 8305fde6f..f7447dcb3 100644
--- a/Telegram/SourceFiles/boxes/sharebox.cpp
+++ b/Telegram/SourceFiles/boxes/sharebox.cpp
@@ -39,6 +39,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "window/themes/window_theme.h"
 #include "boxes/contactsbox.h"
 #include "auth_session.h"
+#include "messenger.h"
 
 ShareBox::ShareBox(QWidget*, CopyCallback &&copyCallback, SubmitCallback &&submitCallback, FilterCallback &&filterCallback)
 : _copyCallback(std::move(copyCallback))
@@ -870,7 +871,7 @@ void shareGameScoreFromItem(HistoryItem *item) {
 						if (media->type() == MediaTypeGame) {
 							auto shortName = static_cast<HistoryGame*>(media)->game()->shortName;
 
-							QApplication::clipboard()->setText(CreateInternalLinkHttps(bot->username + qsl("?game=") + shortName));
+							QApplication::clipboard()->setText(Messenger::Instance().createInternalLinkFull(bot->username + qsl("?game=") + shortName));
 
 							Ui::Toast::Show(lang(lng_share_game_link_copied));
 						}
diff --git a/Telegram/SourceFiles/boxes/stickersetbox.cpp b/Telegram/SourceFiles/boxes/stickersetbox.cpp
index d3b9242c6..ed8bb7f69 100644
--- a/Telegram/SourceFiles/boxes/stickersetbox.cpp
+++ b/Telegram/SourceFiles/boxes/stickersetbox.cpp
@@ -33,6 +33,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "ui/widgets/buttons.h"
 #include "ui/widgets/scroll_area.h"
 #include "auth_session.h"
+#include "messenger.h"
 
 StickerSetBox::StickerSetBox(QWidget*, const MTPInputStickerSet &set)
 : _set(set) {
@@ -68,7 +69,7 @@ void StickerSetBox::onAddStickers() {
 }
 
 void StickerSetBox::onShareStickers() {
-	auto url = CreateInternalLinkHttps(qsl("addstickers/") + _inner->shortName());
+	auto url = Messenger::Instance().createInternalLinkFull(qsl("addstickers/") + _inner->shortName());
 	QApplication::clipboard()->setText(url);
 	Ui::show(Box<InformBox>(lang(lng_stickers_copied)));
 }
diff --git a/Telegram/SourceFiles/boxes/usernamebox.cpp b/Telegram/SourceFiles/boxes/usernamebox.cpp
index 5f90d13a0..f8a29283a 100644
--- a/Telegram/SourceFiles/boxes/usernamebox.cpp
+++ b/Telegram/SourceFiles/boxes/usernamebox.cpp
@@ -28,6 +28,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "ui/widgets/input_fields.h"
 #include "ui/toast/toast.h"
 #include "styles/style_boxes.h"
+#include "messenger.h"
 
 UsernameBox::UsernameBox(QWidget*)
 : _username(this, st::defaultInputField, qsl("@username"), App::self()->username, false)
@@ -85,7 +86,7 @@ void UsernameBox::paintEvent(QPaintEvent *e) {
 	if (_link->isHidden()) {
 		p.drawTextLeft(st::usernamePadding.left(), linky, width(), lang(lng_username_link_willbe));
 		p.setPen(st::usernameDefaultFg);
-		p.drawTextLeft(st::usernamePadding.left(), linky + st::usernameTextStyle.lineHeight + ((st::usernameTextStyle.lineHeight - st::boxTextFont->height) / 2), width(), CreateInternalLinkHttps(qsl("username")));
+		p.drawTextLeft(st::usernamePadding.left(), linky + st::usernameTextStyle.lineHeight + ((st::usernameTextStyle.lineHeight - st::boxTextFont->height) / 2), width(), Messenger::Instance().createInternalLinkFull(qsl("username")));
 	} else {
 		p.drawTextLeft(st::usernamePadding.left(), linky, width(), lang(lng_username_link));
 	}
@@ -159,7 +160,7 @@ void UsernameBox::onChanged() {
 }
 
 void UsernameBox::onLinkClick() {
-	Application::clipboard()->setText(CreateInternalLinkHttps(getName()));
+	Application::clipboard()->setText(Messenger::Instance().createInternalLinkFull(getName()));
 	Ui::Toast::Show(lang(lng_username_copied));
 }
 
@@ -230,7 +231,7 @@ QString UsernameBox::getName() const {
 
 void UsernameBox::updateLinkText() {
 	QString uname = getName();
-	_link->setText(st::boxTextFont->elided(CreateInternalLinkHttps(uname), st::boxWidth - st::usernamePadding.left() - st::usernamePadding.right()));
+	_link->setText(st::boxTextFont->elided(Messenger::Instance().createInternalLinkFull(uname), st::boxWidth - st::usernamePadding.left() - st::usernamePadding.right()));
 	if (uname.isEmpty()) {
 		if (!_link->isHidden()) {
 			_link->hide();
diff --git a/Telegram/SourceFiles/config.h b/Telegram/SourceFiles/config.h
index 8e6ec34af..4e8d96368 100644
--- a/Telegram/SourceFiles/config.h
+++ b/Telegram/SourceFiles/config.h
@@ -305,16 +305,6 @@ inline QString cApiAppVersion() {
 	return QString::number(AppVersion);
 }
 
-constexpr str_const AppLinksDomain = "t.me";
-
-inline QString CreateInternalLink(const QString &query) {
-	return str_const_toString(AppLinksDomain) + '/' + query;
-}
-
-inline QString CreateInternalLinkHttps(const QString &query) {
-	return qsl("https://") + CreateInternalLink(query);
-}
-
 extern QString gKeyFile;
 inline const QString &cDataFile() {
 	if (!gKeyFile.isEmpty()) return gKeyFile;
diff --git a/Telegram/SourceFiles/facades.cpp b/Telegram/SourceFiles/facades.cpp
index 5137d373c..3aef7bc3f 100644
--- a/Telegram/SourceFiles/facades.cpp
+++ b/Telegram/SourceFiles/facades.cpp
@@ -657,6 +657,7 @@ struct Data {
 	int32 EditTimeLimit = 172800;
 	int32 StickersRecentLimit = 30;
 	int32 PinnedDialogsCountMax = 5;
+	QString InternalLinksDomain = qsl("https://t.me/");
 
 	HiddenPinnedMessagesMap HiddenPinnedMessages;
 
@@ -779,6 +780,7 @@ DefineVar(Global, int32, SavedGifsLimit);
 DefineVar(Global, int32, EditTimeLimit);
 DefineVar(Global, int32, StickersRecentLimit);
 DefineVar(Global, int32, PinnedDialogsCountMax);
+DefineVar(Global, QString, InternalLinksDomain);
 
 DefineVar(Global, HiddenPinnedMessagesMap, HiddenPinnedMessages);
 
diff --git a/Telegram/SourceFiles/facades.h b/Telegram/SourceFiles/facades.h
index 97eaa7c17..9dfa264ec 100644
--- a/Telegram/SourceFiles/facades.h
+++ b/Telegram/SourceFiles/facades.h
@@ -342,6 +342,7 @@ DeclareVar(int32, SavedGifsLimit);
 DeclareVar(int32, EditTimeLimit);
 DeclareVar(int32, StickersRecentLimit);
 DeclareVar(int32, PinnedDialogsCountMax);
+DeclareVar(QString, InternalLinksDomain);
 
 typedef QMap<PeerId, MsgId> HiddenPinnedMessagesMap;
 DeclareVar(HiddenPinnedMessagesMap, HiddenPinnedMessages);
diff --git a/Telegram/SourceFiles/history/history_item.cpp b/Telegram/SourceFiles/history/history_item.cpp
index ce581b3f7..69052a8a2 100644
--- a/Telegram/SourceFiles/history/history_item.cpp
+++ b/Telegram/SourceFiles/history/history_item.cpp
@@ -29,6 +29,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "ui/effects/ripple_animation.h"
 #include "storage/file_upload.h"
 #include "auth_session.h"
+#include "messenger.h"
 
 namespace {
 
@@ -793,6 +794,9 @@ bool HistoryItem::canDeleteForEveryone(const QDateTime &cur) const {
 	return false;
 }
 
+QString HistoryItem::directLink() const {
+	return hasDirectLink() ? Messenger::Instance().createInternalLinkFull(_history->peer->asChannel()->username + '/' + QString::number(id)) : QString();
+}
 bool HistoryItem::unread() const {
 	// Messages from myself are always read.
 	if (history()->peer->isSelf()) return false;
diff --git a/Telegram/SourceFiles/history/history_item.h b/Telegram/SourceFiles/history/history_item.h
index b10c00eee..d76b9e236 100644
--- a/Telegram/SourceFiles/history/history_item.h
+++ b/Telegram/SourceFiles/history/history_item.h
@@ -713,9 +713,7 @@ public:
 	bool hasDirectLink() const {
 		return id > 0 && _history->peer->isChannel() && _history->peer->asChannel()->isPublic() && !_history->peer->isMegagroup();
 	}
-	QString directLink() const {
-		return hasDirectLink() ? CreateInternalLinkHttps(_history->peer->asChannel()->username + '/' + QString::number(id)) : QString();
-	}
+	QString directLink() const;
 
 	int32 y;
 	MsgId id;
diff --git a/Telegram/SourceFiles/messenger.cpp b/Telegram/SourceFiles/messenger.cpp
index 62b9a4cb4..dc6b016b2 100644
--- a/Telegram/SourceFiles/messenger.cpp
+++ b/Telegram/SourceFiles/messenger.cpp
@@ -590,6 +590,44 @@ void Messenger::authSessionDestroy() {
 	authSessionChanged().notify();
 }
 
+void Messenger::setInternalLinkDomain(const QString &domain) const {
+	// This domain should start with 'http[s]://' and end with '/', like 'https://t.me/'.
+	auto validate = [](auto &domain) {
+		auto prefixes = {
+			qstr("https://"),
+			qstr("http://"),
+		};
+		for (auto &prefix : prefixes) {
+			if (domain.startsWith(prefix, Qt::CaseInsensitive)) {
+				return domain.endsWith('/');
+			}
+		}
+		return false;
+	};
+	if (validate(domain) && domain != Global::InternalLinksDomain()) {
+		Global::SetInternalLinksDomain(domain);
+	}
+}
+
+QString Messenger::createInternalLink(const QString &query) const {
+	auto result = createInternalLinkFull(query);
+	auto prefixes = {
+		qstr("https://"),
+		qstr("http://"),
+	};
+	for (auto &prefix : prefixes) {
+		if (result.startsWith(prefix, Qt::CaseInsensitive)) {
+			return result.mid(prefix.size());
+		}
+	}
+	LOG(("Warning: bad internal url '%1'").arg(result));
+	return result;
+}
+
+QString Messenger::createInternalLinkFull(const QString &query) const {
+	return Global::InternalLinksDomain() + query;
+}
+
 FileUploader *Messenger::uploader() {
 	if (!_uploader && !App::quitting()) _uploader = new FileUploader();
 	return _uploader;
diff --git a/Telegram/SourceFiles/messenger.h b/Telegram/SourceFiles/messenger.h
index 87cb104e7..b596a5b1c 100644
--- a/Telegram/SourceFiles/messenger.h
+++ b/Telegram/SourceFiles/messenger.h
@@ -77,6 +77,10 @@ public:
 		return _authSessionChanged;
 	}
 
+	void setInternalLinkDomain(const QString &domain) const;
+	QString createInternalLink(const QString &query) const;
+	QString createInternalLinkFull(const QString &query) const;
+
 	FileUploader *uploader();
 	void uploadProfilePhoto(const QImage &tosend, const PeerId &peerId);
 	void regPhotoUpdate(const PeerId &peer, const FullMsgId &msgId);
diff --git a/Telegram/SourceFiles/mtproto/mtp_instance.cpp b/Telegram/SourceFiles/mtproto/mtp_instance.cpp
index 2d2e0b413..ada343106 100644
--- a/Telegram/SourceFiles/mtproto/mtp_instance.cpp
+++ b/Telegram/SourceFiles/mtproto/mtp_instance.cpp
@@ -560,6 +560,7 @@ void Instance::Private::configLoadDone(const MTPConfig &result) {
 	Global::SetEditTimeLimit(data.vedit_time_limit.v); // ?
 	Global::SetStickersRecentLimit(data.vstickers_recent_limit.v);
 	Global::SetPinnedDialogsCountMax(data.vpinned_dialogs_count_max.v);
+	Messenger::Instance().setInternalLinkDomain(qs(data.vme_url_prefix));
 
 	Local::writeSettings();
 
diff --git a/Telegram/SourceFiles/profile/profile_block_info.cpp b/Telegram/SourceFiles/profile/profile_block_info.cpp
index f491b9dcd..3b09a8f28 100644
--- a/Telegram/SourceFiles/profile/profile_block_info.cpp
+++ b/Telegram/SourceFiles/profile/profile_block_info.cpp
@@ -29,6 +29,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "observer_peer.h"
 #include "apiwrap.h"
 #include "lang.h"
+#include "messenger.h"
 
 namespace Profile {
 
@@ -191,10 +192,10 @@ void InfoWidget::refreshChannelLink() {
 	TextWithEntities channelLinkTextShort;
 	if (auto channel = peer()->asChannel()) {
 		if (!channel->username.isEmpty()) {
-			channelLinkText.text = CreateInternalLinkHttps(channel->username);
+			channelLinkText.text = Messenger::Instance().createInternalLinkFull(channel->username);
 			channelLinkText.entities.push_back(EntityInText(EntityInTextUrl, 0, channelLinkText.text.size()));
-			channelLinkTextShort.text = CreateInternalLink(channel->username);
-			channelLinkTextShort.entities.push_back(EntityInText(EntityInTextCustomUrl, 0, channelLinkTextShort.text.size(), CreateInternalLinkHttps(channel->username)));
+			channelLinkTextShort.text = Messenger::Instance().createInternalLink(channel->username);
+			channelLinkTextShort.entities.push_back(EntityInText(EntityInTextCustomUrl, 0, channelLinkTextShort.text.size(), Messenger::Instance().createInternalLinkFull(channel->username)));
 		}
 	}
 	setLabeledText(nullptr, lang(lng_profile_link), &_channelLink, channelLinkText, QString());
diff --git a/Telegram/SourceFiles/settings/settings_info_widget.cpp b/Telegram/SourceFiles/settings/settings_info_widget.cpp
index b0881eed6..ff3d11feb 100644
--- a/Telegram/SourceFiles/settings/settings_info_widget.cpp
+++ b/Telegram/SourceFiles/settings/settings_info_widget.cpp
@@ -27,6 +27,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "boxes/usernamebox.h"
 #include "boxes/change_phone_box.h"
 #include "observer_peer.h"
+#include "messenger.h"
 
 namespace Settings {
 
@@ -86,7 +87,7 @@ void InfoWidget::refreshUsername() {
 		usernameText.text = '@' + self()->username;
 		copyText = lang(lng_context_copy_mention);
 	}
-	usernameText.entities.push_back(EntityInText(EntityInTextCustomUrl, 0, usernameText.text.size(), CreateInternalLinkHttps(self()->username)));
+	usernameText.entities.push_back(EntityInText(EntityInTextCustomUrl, 0, usernameText.text.size(), Messenger::Instance().createInternalLinkFull(self()->username)));
 	setLabeledText(_username, lang(lng_profile_username), usernameText, TextWithEntities(), copyText);
 	if (auto text = _username->entity()->textLabel()) {
 		text->setClickHandlerHook([](const ClickHandlerPtr &handler, Qt::MouseButton button) {
@@ -100,10 +101,10 @@ void InfoWidget::refreshLink() {
 	TextWithEntities linkText;
 	TextWithEntities linkTextShort;
 	if (!self()->username.isEmpty()) {
-		linkText.text = CreateInternalLinkHttps(self()->username);
+		linkText.text = Messenger::Instance().createInternalLinkFull(self()->username);
 		linkText.entities.push_back(EntityInText(EntityInTextUrl, 0, linkText.text.size()));
-		linkTextShort.text = CreateInternalLink(self()->username);
-		linkTextShort.entities.push_back(EntityInText(EntityInTextCustomUrl, 0, linkTextShort.text.size(), CreateInternalLinkHttps(self()->username)));
+		linkTextShort.text = Messenger::Instance().createInternalLink(self()->username);
+		linkTextShort.entities.push_back(EntityInText(EntityInTextCustomUrl, 0, linkTextShort.text.size(), Messenger::Instance().createInternalLinkFull(self()->username)));
 	}
 	setLabeledText(_link, lang(lng_profile_link), linkText, linkTextShort, QString());
 	if (auto text = _link->entity()->textLabel()) {
diff --git a/Telegram/SourceFiles/ui/widgets/input_fields.cpp b/Telegram/SourceFiles/ui/widgets/input_fields.cpp
index 1439c977e..d643c862b 100644
--- a/Telegram/SourceFiles/ui/widgets/input_fields.cpp
+++ b/Telegram/SourceFiles/ui/widgets/input_fields.cpp
@@ -26,6 +26,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "window/themes/window_theme.h"
 #include "lang.h"
 #include "numbers.h"
+#include "messenger.h"
 
 namespace Ui {
 namespace {
@@ -3828,8 +3829,8 @@ void PortInput::correctValue(const QString &was, int32 wasCursor, QString &now,
 	setCorrectedText(now, nowCursor, newText, newPos);
 }
 
-UsernameInput::UsernameInput(QWidget *parent, const style::InputField &st, const QString &ph, const QString &val, bool isLink) : MaskedInputField(parent, st, ph, val),
-_linkPlaceholder(isLink ? CreateInternalLink(QString()) : QString()) {
+UsernameInput::UsernameInput(QWidget *parent, const style::InputField &st, const QString &ph, const QString &val, bool isLink) : MaskedInputField(parent, st, ph, val)
+, _linkPlaceholder(isLink ? Messenger::Instance().createInternalLink(QString()) : QString()) {
 	if (!_linkPlaceholder.isEmpty()) {
 		setTextMargins(style::margins(_st.textMargins.left() + _st.font->width(_linkPlaceholder), _st.textMargins.top(), _st.textMargins.right(), _st.textMargins.bottom()));
 		setPlaceholderHidden(true);