diff --git a/td/telegram/InlineQueriesManager.cpp b/td/telegram/InlineQueriesManager.cpp
index 5ce024cc1..a1546fd0f 100644
--- a/td/telegram/InlineQueriesManager.cpp
+++ b/td/telegram/InlineQueriesManager.cpp
@@ -1682,7 +1682,7 @@ void InlineQueriesManager::on_get_inline_query_results(DialogId dialog_id, UserI
             article->hide_url_ = true;
           } else {
             LOG_IF(ERROR, result->url_ != article->url_)
-                << "Url has changed from " << article->url_ << " to " << result->url_;
+                << "URL has changed from " << article->url_ << " to " << result->url_;
             article->hide_url_ = false;
           }
           article->title_ = std::move(result->title_);
diff --git a/td/telegram/WebPagesManager.cpp b/td/telegram/WebPagesManager.cpp
index 0539b355f..95e91dfe4 100644
--- a/td/telegram/WebPagesManager.cpp
+++ b/td/telegram/WebPagesManager.cpp
@@ -696,7 +696,7 @@ void WebPagesManager::on_get_web_page_by_url(const string &url, WebPageId web_pa
   }
 
   if (cached_web_page_id.is_valid() && web_page_id.is_valid() && web_page_id != cached_web_page_id) {
-    LOG(ERROR) << "Url \"" << url << "\" preview is changed from " << cached_web_page_id << " to " << web_page_id;
+    LOG(ERROR) << "URL \"" << url << "\" preview is changed from " << cached_web_page_id << " to " << web_page_id;
   }
 
   cached_web_page_id = web_page_id;
diff --git a/td/telegram/logevent/SecretChatEvent.h b/td/telegram/logevent/SecretChatEvent.h
index 45f07bf66..3218a072e 100644
--- a/td/telegram/logevent/SecretChatEvent.h
+++ b/td/telegram/logevent/SecretChatEvent.h
@@ -219,7 +219,7 @@ inline StringBuilder &operator<<(StringBuilder &sb, const EncryptedInputFile &fi
 }
 
 // LogEvents
-// TODO: Qts and SeqNoState could be just Logevents that are updated during regenerate
+// TODO: QTS and SeqNoState could be just Logevents that are updated during regenerate
 class InboundSecretMessage final : public SecretChatLogEventBase<InboundSecretMessage> {
  public:
   static constexpr Type type = SecretChatEvent::Type::InboundSecretMessage;
diff --git a/td/telegram/net/Session.cpp b/td/telegram/net/Session.cpp
index 2a8d29cb1..b167f457e 100644
--- a/td/telegram/net/Session.cpp
+++ b/td/telegram/net/Session.cpp
@@ -1277,14 +1277,14 @@ void Session::connection_open_finish(ConnectionInfo *info,
   Slice mode_name;
   if (mode_ == Mode::Tcp) {
     mode = mtproto::SessionConnection::Mode::Tcp;
-    mode_name = Slice("Tcp");
+    mode_name = Slice("TCP");
   } else {
     if (info->connection_id_ == 0) {
       mode = mtproto::SessionConnection::Mode::Http;
-      mode_name = Slice("Http");
+      mode_name = Slice("HTTP");
     } else {
       mode = mtproto::SessionConnection::Mode::HttpLongPoll;
-      mode_name = Slice("HttpLongPoll");
+      mode_name = Slice("LongPoll");
     }
   }
   auto name = PSTRING() << get_name() << "::Connect::" << mode_name << "::" << raw_connection->extra().debug_str;
diff --git a/td/telegram/net/Session.h b/td/telegram/net/Session.h
index e16d9cd11..02d1d4dee 100644
--- a/td/telegram/net/Session.h
+++ b/td/telegram/net/Session.h
@@ -269,7 +269,7 @@ class Session final
   void raw_event(const Event::Raw &event) final;
 
   friend StringBuilder &operator<<(StringBuilder &sb, Mode mode) {
-    return sb << (mode == Mode::Http ? "Http" : "Tcp");
+    return sb << (mode == Mode::Http ? "HTTP" : "TCP");
   }
 };
 
diff --git a/tdutils/td/utils/OrderedEventsProcessor.h b/tdutils/td/utils/OrderedEventsProcessor.h
index f472fc320..d5c638eb8 100644
--- a/tdutils/td/utils/OrderedEventsProcessor.h
+++ b/tdutils/td/utils/OrderedEventsProcessor.h
@@ -13,7 +13,7 @@
 
 namespace td {
 
-// Process states in order defined by their Id
+// Process states in order defined by their SeqNo
 template <class DataT>
 class OrderedEventsProcessor {
  public:
diff --git a/tdutils/td/utils/port/UdpSocketFd.h b/tdutils/td/utils/port/UdpSocketFd.h
index 92489f6b1..67cdf801a 100644
--- a/tdutils/td/utils/port/UdpSocketFd.h
+++ b/tdutils/td/utils/port/UdpSocketFd.h
@@ -20,7 +20,6 @@
 #include <memory>
 
 namespace td {
-// Udp and errors
 namespace detail {
 class UdpSocketFdImpl;
 class UdpSocketFdImplDeleter {