diff --git a/app/code/core/Mage/Admin/Model/Resource/Block.php b/app/code/core/Mage/Admin/Model/Resource/Block.php
index 9d813502937..bec218c7fcf 100644
--- a/app/code/core/Mage/Admin/Model/Resource/Block.php
+++ b/app/code/core/Mage/Admin/Model/Resource/Block.php
@@ -70,7 +70,7 @@ protected function _generateCache()
         Mage::app()->saveCache(
             Mage::helper('core')->jsonEncode($data),
             self::CACHE_ID,
-            [Mage_Core_Model_App::CACHE_TAG]
+            [Mage_Core_Model_Resource_Db_Collection_Abstract::CACHE_TAG]
         );
     }
 
diff --git a/app/code/core/Mage/Admin/Model/Resource/Variable.php b/app/code/core/Mage/Admin/Model/Resource/Variable.php
index bef4a9d08cb..05264f8fee1 100644
--- a/app/code/core/Mage/Admin/Model/Resource/Variable.php
+++ b/app/code/core/Mage/Admin/Model/Resource/Variable.php
@@ -38,7 +38,7 @@ protected function _generateCache()
         Mage::app()->saveCache(
             Mage::helper('core')->jsonEncode($data),
             self::CACHE_ID,
-            [Mage_Core_Model_App::CACHE_TAG]
+            [Mage_Core_Model_Resource_Db_Collection_Abstract::CACHE_TAG]
         );
     }
 
diff --git a/app/code/core/Mage/Captcha/etc/config.xml b/app/code/core/Mage/Captcha/etc/config.xml
index 907a904455d..098aa7bd345 100644
--- a/app/code/core/Mage/Captcha/etc/config.xml
+++ b/app/code/core/Mage/Captcha/etc/config.xml
@@ -197,7 +197,7 @@
                 <mode>after_fail</mode>
                 <forms>backend_forgotpassword</forms>
                 <failed_attempts_login>3</failed_attempts_login>
-                <failed_attempts_ip>1000</failed_attempts_ip>
+                <failed_attempts_ip>10</failed_attempts_ip>
                 <timeout>7</timeout>
                 <length>4-5</length>
                 <symbols>ABCDEFGHJKMnpqrstuvwxyz23456789</symbols>
diff --git a/app/code/core/Mage/Captcha/etc/system.xml b/app/code/core/Mage/Captcha/etc/system.xml
index b359e0275ef..38c1f167296 100644
--- a/app/code/core/Mage/Captcha/etc/system.xml
+++ b/app/code/core/Mage/Captcha/etc/system.xml
@@ -77,9 +77,22 @@
                             </depends>
                             <frontend_class>required-entry validate-digits</frontend_class>
                         </failed_attempts_login>
+                        <failed_attempts_ip translate="label">
+                            <label>Number of Unsuccessful Attempts to Login per IP Address</label>
+                            <frontend_type>text</frontend_type>
+                            <sort_order>6</sort_order>
+                            <show_in_default>1</show_in_default>
+                            <show_in_website>0</show_in_website>
+                            <show_in_store>0</show_in_store>
+                            <depends>
+                                <mode>after_fail</mode>
+                                <enable>1</enable>
+                            </depends>
+                            <frontend_class>required-entry validate-digits</frontend_class>
+                        </failed_attempts_ip>
                         <timeout translate="label">
                             <label>CAPTCHA Timeout (minutes)</label>
-                            <sort_order>6</sort_order>
+                            <sort_order>7</sort_order>
                             <show_in_default>1</show_in_default>
                             <show_in_website>0</show_in_website>
                             <show_in_store>0</show_in_store>
@@ -89,7 +102,7 @@
                         <length translate="label comment">
                             <label>Number of Symbols</label>
                             <comment>Please specify 8 symbols at the most. Range allowed (e.g. 3-5)</comment>
-                            <sort_order>7</sort_order>
+                            <sort_order>8</sort_order>
                             <show_in_default>1</show_in_default>
                             <show_in_website>0</show_in_website>
                             <show_in_store>0</show_in_store>
@@ -99,7 +112,7 @@
                         <symbols translate="label comment">
                             <label>Symbols Used in CAPTCHA</label>
                             <comment><![CDATA[Please use only letters (a-z or A-Z) or numbers (0-9) in this field. No spaces or other characters are allowed.<br />Similar looking characters (e.g. "i", "l", "1") decrease chance of correct recognition by customer.]]></comment>
-                            <sort_order>8</sort_order>
+                            <sort_order>9</sort_order>
                             <show_in_default>1</show_in_default>
                             <show_in_website>0</show_in_website>
                             <show_in_store>0</show_in_store>
@@ -110,7 +123,7 @@
                             <label>Case Sensitive</label>
                             <frontend_type>select</frontend_type>
                             <source_model>adminhtml/system_config_source_yesno</source_model>
-                            <sort_order>9</sort_order>
+                            <sort_order>10</sort_order>
                             <show_in_default>1</show_in_default>
                             <show_in_website>0</show_in_website>
                             <show_in_store>0</show_in_store>
diff --git a/app/code/core/Mage/Core/Model/App.php b/app/code/core/Mage/Core/Model/App.php
index 63fcd034ea8..e6750cf4ace 100644
--- a/app/code/core/Mage/Core/Model/App.php
+++ b/app/code/core/Mage/Core/Model/App.php
@@ -36,12 +36,6 @@ class Mage_Core_Model_App
 
     public const DISTRO_LOCALE_CODE = 'en_US';
 
-    /**
-     * Cache tag for all cache data exclude config cache
-     *
-     */
-    public const CACHE_TAG = 'MAGE';
-
     /**
      * Default store Id (for install)
      */
diff --git a/app/code/core/Mage/Core/Model/Cache.php b/app/code/core/Mage/Core/Model/Cache.php
index 3e2c236d69c..bc34eb5072f 100644
--- a/app/code/core/Mage/Core/Model/Cache.php
+++ b/app/code/core/Mage/Core/Model/Cache.php
@@ -381,12 +381,6 @@ public function save($data, $id, $tags = [], $lifeTime = null)
             return true;
         }
 
-        /**
-         * Add global magento cache tag to all cached data exclude config cache
-         */
-        if (!in_array(Mage_Core_Model_Config::CACHE_TAG, $tags)) {
-            $tags[] = Mage_Core_Model_App::CACHE_TAG;
-        }
         return $this->getFrontend()->save((string)$data, $this->_id($id), $this->_tags($tags), $lifeTime);
     }
 
@@ -427,8 +421,7 @@ public function clean($tags = [])
             }
             $res = $this->getFrontend()->clean($mode, $this->_tags($tags));
         } else {
-            $res = $this->getFrontend()->clean($mode, [Mage_Core_Model_App::CACHE_TAG]);
-            $res = $res && $this->getFrontend()->clean($mode, [Mage_Core_Model_Config::CACHE_TAG]);
+            $this->flush();
         }
         return $res;
     }
diff --git a/app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php b/app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php
index cce44677818..5da86165218 100644
--- a/app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php
+++ b/app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php
@@ -687,7 +687,6 @@ protected function _saveCache($data, $select)
     protected function _getCacheTags()
     {
         $tags = parent::_getCacheTags();
-        $tags[] = Mage_Core_Model_App::CACHE_TAG;
         $tags[] = self::CACHE_TAG;
         return $tags;
     }
diff --git a/app/code/core/Mage/Log/Model/Visitor.php b/app/code/core/Mage/Log/Model/Visitor.php
index 96b8e29d344..751a504d5f7 100644
--- a/app/code/core/Mage/Log/Model/Visitor.php
+++ b/app/code/core/Mage/Log/Model/Visitor.php
@@ -101,17 +101,22 @@ public function __construct(array $data = [])
     protected function _construct()
     {
         $this->_init('log/visitor');
-        $userAgent = $this->_httpHelper->getHttpUserAgent();
+        if ($this->_logCondition->isLogDisabled()) {
+            $this->_skipRequestLogging = true;
+            return;
+        }
+
         $ignoreAgents = $this->_config->getNode('global/ignore_user_agents');
         if ($ignoreAgents) {
             $ignoreAgents = $ignoreAgents->asArray();
-            if (in_array($userAgent, $ignoreAgents)) {
-                $this->_skipRequestLogging = true;
+            $userAgent = $this->_httpHelper->getHttpUserAgent();
+            foreach ($ignoreAgents as $ignoreAgent) {
+                if (stripos($userAgent, $ignoreAgent) !== false) {
+                    $this->_skipRequestLogging = true;
+                    break;
+                }
             }
         }
-        if ($this->_logCondition->isLogDisabled()) {
-            $this->_skipRequestLogging = true;
-        }
     }
 
     /**
diff --git a/app/code/core/Mage/Log/etc/config.xml b/app/code/core/Mage/Log/etc/config.xml
index 41e8f048295..f7119dd1259 100644
--- a/app/code/core/Mage/Log/etc/config.xml
+++ b/app/code/core/Mage/Log/etc/config.xml
@@ -29,9 +29,28 @@
             </entities>
         </ignoredModules>
         <ignore_user_agents>
-            <google1>Googlebot/1.0 (googlebot@googlebot.com http://googlebot.com/)</google1>
-            <google2>Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)</google2>
-            <google3>Googlebot/2.1 (+http://www.googlebot.com/bot.html)</google3>
+            <adsbot>AdsBot</adsbot>
+            <alphabot>AlphaBot</alphabot>
+            <amazonbot>Amazonbot</amazonbot>
+            <bingbot>bingbot</bingbot>
+            <blexbot>BLEXBot</blexbot>
+            <dotbot>DotBot</dotbot>
+            <facebookexternalhit>facebookexternalhit</facebookexternalhit>
+            <google>Googlebot</google>
+            <google-site-verification>Google-Site-Verification</google-site-verification>
+            <hrefsbot>AhrefsBot</hrefsbot>
+            <istellabot>istellabot</istellabot>
+            <mauibot>MauiBot</mauibot>
+            <mj12bot>MJ12bot</mj12bot>
+            <mod_pagespeed>mod_pagespeed</mod_pagespeed>
+            <opensiteexplorer>spbot</opensiteexplorer>
+            <pinterestbot>Pinterestbot</pinterestbot>
+            <semrushbot>SemrushBot</semrushbot>
+            <seotester>SEOTesterBot</seotester>
+            <yandexbot>YandexBot</yandexbot>
+            <yandeximage>YandexImages</yandeximage>
+            <yandexmobilebot>YandexMobileBot</yandexmobilebot>
+            <zoominfobot>ZoominfoBot</zoominfobot>
         </ignore_user_agents>
         <helpers>
             <log>
diff --git a/app/locale/en_US/Mage_Captcha.csv b/app/locale/en_US/Mage_Captcha.csv
index e5a7814ab67..42ea5178ea9 100644
--- a/app/locale/en_US/Mage_Captcha.csv
+++ b/app/locale/en_US/Mage_Captcha.csv
@@ -19,4 +19,5 @@
 "Please type the letters from the image:","Please type the letters from the image:"
 "Please use only letters (a-z or A-Z) or numbers (0-9) in this field. No spaces or other characters are allowed.<br />Similar looking characters (e.g. ""i"", ""l"", ""1"") decrease chance of correct recognition by customer.","Please use only letters (a-z or A-Z) or numbers (0-9) in this field. No spaces or other characters are allowed.<br />Similar looking characters (e.g. ""i"", ""l"", ""1"") decrease chance of correct recognition by customer."
 "Reload captcha","Reload captcha"
-"Symbols Used in CAPTCHA","Symbols Used in CAPTCHA"
+"Symbols Used in CAPTCHA","Symbols Used in CAPTCHA",
+"Number of Unsuccessful Attempts to Login per IP Address","Number of Unsuccessful Attempts to Login per IP Address"