CAPTCHA

NATS 4 About NATS 4 NATS4 Requirements NATS4 vs NATS3 Advantages IPSP Integration For Affiliates Affiliate Adtools Automatic Campaigns Affiliate Payment Information Affiliate Defaults Affiliate Link Codes Affiliate Stats Dumps ASP Query String Deep Linking Main Program Page NATS 4.1 Affiliate Area NATS 4.1 Affiliate Area Affiliate Account Details Affiliate Account Change Log Affiliate Adtools Affiliate Adtools Search Affiliate Campaigns Affiliate Dashboard Dashboard Key Statistics Dashboard Statistics Summary Affiliate Display Settings Affiliate Email and Notification Settings Affiliate Linkcodes Affiliate Linkcode Settings Affiliate Login History Affiliate Messages Affiliate Payment History Affiliate Referrals Report Affiliate Referring URL Report Affiliate Signup Affiliate Skins and Languages Affiliate Statistic Filters Affiliate Statistic Views Quick Links Affiliate Bonus Rewards NATS 4 Upgrade Changelog Administration Changes Admins Admin Overview Reports Admin Payments Admin News and Notifications Admin Affiliates Admin Members Admin Sites Admin Difference between NATS4 and NATS3 Postback URL Programs Admin Billers Admin Adtools Admin Upsells Admin Includes Admin Mailing Admin Skins & Templates Admin Configuration Admin Cleanup and Maintenance Admin Logs Admin Affiliate Changes Affiliate Dashboard Affiliate Statistics Affiliate Adtools Affiliate My Account Affiliate Support NATS Setup Post-Installation Steps Apache Configuration MySQL Settings Creating Admin Accounts Multiple Server Setup Using Memcached for Caching File Upload Setup Link Domain NATS4 Files and Directories NATS4 Go Live Checklist NATS3 to NATS4 Going Live Checklist Moving NATS4 Admin Overview The Admin Overview Reporting Admin The Reporting Admin track and strack Fraud Reports   Report Breakdowns The Profit and Loss Report The Retention Report The Subscription Report The Transactions Report The Detailed Trial Report The Cascade Activity Report The Fraud Report The Account Rep Report The Surfer Actions Report The Affiliate Referral Tier Payouts Report The Affiliate Referral Signup Payouts Report The Additional Payout Report The Graphical Affiliate Comparison Report The Single Day Comparison Report The Actual Affiliate Payments Report Payments Admin The Payments Admin Creating and Editing PayVia Options and Dump Formats Pay Via Types Check Functions Payment Dump Entry Numbers Payment Dump Variables Intercash RevUpCard ePayService News and Notifications Admin The News and Notifications Admin Add News Item Sending Messages Affiliates Admin The Affiliates Admin ID Numbers Account Representatives Affiliate Referrals Affiliate Activation Affiliate Access Permissions Affiliate Admin Settings Affiliate Overrides Creating Admin Accounts In-House Accounts Affiliate-Specific Join Options and Payouts Add Manual Sale Affiliate Documents Change Affiliate Status Members Admin The Members Admin Add Member MySQL Auth Multisite Access ID Numbers Member Logging Sites Admin The Sites Admin Sites Site Setup Site Templates Tour Setup Join Options No Cost Registration Special Pricing Options Join Option Rules Post URL Usage Post URLs in NATS4 Approval/Upgrade/Denial Variables Mobile Tours Token Sites ID Numbers Site Partner Site User Management Tour Redirection Username Checking Post-Biller Templates Send Information To Special Biller Join Option Box vs Button Qualified Join Page Hits Allowed languages Customize Join Form Package Plus Token Plus Coupon Codes Setting Rules Programs Admin The Programs Admin Adding Programs Payout Changes ID Numbers NATS Program Special Pricing Options Setting Rules Billers Admin The Billers Admin Biller Biller Fees NATS Cascades Add Cascade Cascade Weight Autocascade Hidden Cascades Geo-Targeting Cascades Post-Biller Templates HTTPS Gateways Timed Cascade Rules Upgrade Plus Gateway One Step Join Extra Biller Fields Send Information To Special Biller Setting Rules Billers That Support XSells/Upsells   Biller Instructions NATS4 Biller List 2000Charge Aebill AltoBilling Authorize.net BoaCompra Bill1st Gateway Billing Revolution C2Bill CardFlex CCBill CCBill Web900 Clearcard Clearcard IDV Click and Buy CommerceGate CurePay DHD DHDGateway EGatePay ElectraCash eMerchantPay Gateway eMPPay.com Epoch EuroBill EPGBill.com Focal Payments Gateway tokens Global Access GlobalCharge Global DPS Greta 11 (G11Bill) GTBill GXBill ICN Ltd. Itelebill Jettis International Jettis International Gateway LocalBilling NETbilling NETbilling Native NetCash Netpay International NoCreditCard OrbitalPay Password By Phone Pay900 Paygea Payment Network PayPal Paysite Cash Plug'n_Pay RocketGate RSBilling RSBilling Native SafeCharge SafeCharge Native Secure Billing Worldwide Secure Billing Worldwide Gateway SegPay SOFORTdauerauftrag StandardBill TrustCharge UKash Vendo Verotel Pro VXSBill WebBilling WTS WTSeu Zombaio Shopping Cart Sales Switching From Epoch to Epoch EU Third Party Admin Third Parties Supported Third Parties AdultFriendFinder AdultFriendFinderAPI   AdultFriendFinder versus AdultFriendFinderAPI Cams.com DatingGold EffexMedia GameLink MallCom MyDirtyHobby SexGoesMobile (SGM) StreaMate Video Secrets WebCamClub WebCams Wister XOnDemand Adtools Admin The Adtools Admin Duplicating Adtool Types Add New Adtools Add New Adtool Type Bulk Import Adtools Downloadable Content Adtool Type Get Hosted Galleries Adtool Templates Content of the Day Linkcodes and Tools Admin Setting Rules   Default Adtool Types Adtool Types Image Banners Geo Banners Flash Banners Free Hosted Galleries Mailers Feeds Content Fan Signs Flash Videos Embedded Videos Hosted Videos Page Peels IM Popups Footer Ads Page Ads Hosted Free Sites Overlays Upsells Admin The Upsells Admin Configuring Cross Sells Configuring Upsells Cross Sell Supported Billers Upsell Supported Billers Process Gateway Cross Sales Outside NATS Cross Sells: A to Z Upsells: A to Z Upsell Plus Setting Rules Includes Admin The Includes Admin The Promotionals Admin IntelliChat Mailing Admin The Mailing Admin Create New Mailer Email Configuration The Mailing Queue Mailer Template Variables Mass Mailing Template Variables Common Mailer Examples Setting Rules Skins and Templates Admin The Skins and Templates Admin Skins Smarty Plugins Templates Site Templates Language Skins Language Files custom_errors.php Join Page Variables Post URL Variables Member Usernames & Passwords Username Recommendations Password Retrieval Post-Biller Templates Geo-Target Join Options Random Usernames and Passwords Smarty Smarty print array Affiliate Support Template Adding a Verification Image Custom Program and Campaign Selection Pages Output An Affiliate's Last Paid Date Affiliate Signup Email Affiliate Join Page Linkcodes Approval/Upgrade/Denial Variables CSS Theme Builder   Template Functions nats_add_to_array nats_adtool_replace_linkcode nats_array_flip nats_array_to_xml nats_build_array_by_reference nats_convert_bytes nats_decode nats_display_account_campaigns nats_display_account_change_history nats_display_account_notifications nats_display_account_preview nats_display_admin_links nats_display_admin_message nats_display_adtool_form nats_display_adtool_types nats_display_adtools nats_display_adtools_type_limit nats_display_choose_adtools_group nats_display_code_info nats_display_create_campaign nats_display_edit_account_details nats_display_edit_account_settings nats_display_edit_defaults nats_display_edit_password nats_display_edit_payvia nats_display_edit_payvia_info nats_display_edit_skin nats_display_gallery_builder nats_display_graph nats_display_hourly_sales nats_display_latest_adtools nats_display_map nats_display_news nats_display_page_peel nats_display_payment_history nats_display_payment_summary nats_display_ratio nats_display_reward_category nats_display_reward_order nats_display_reward_purchases nats_display_signup_advanced nats_display_signup_basic nats_display_signup_payvia nats_display_stats nats_display_stats_calendar nats_display_stats_form nats_display_stats_referrals nats_display_stats_retention nats_display_stats_subscription_details nats_display_stats_table nats_display_timezones nats_display_top_stats nats_dump_data nats_encode nats_get_first_in_array nats_get_period_end nats_get_reward_categories nats_get_member nats_list_adtool_groups nats_list_affiliates nats_list_billers nats_list_campaigns nats_list_linkcodes nats_list_options nats_get_option_details nats_list_programs nats_list_sites nats_list_tool_categories nats_list_tours nats_list_xsells nats_smarty_function_amount_owed nats_smarty_function_getbonus nats_smarty_rebuild_form nats_smarty_rebuild_link nats_smarty_rebuild_query nats_tooltip tmm_admin_pagination Template Shortcuts add_to_array adtool_replace_linkcode affiliate_select_form array_flip array_to_xml amount_owed build_array_by_reference convert_bytes display_account_campaigns display_account_change_history display_account_notifications display_account_preview display_admin_links display_adtool_form display_adtool_types display_adtools display_adtools_type_limit display_choose_adtools_group display_code_info display_create_campaign display_gallery_builder display_stats_referrals display_edit_account_details display_edit_account_settings display_edit_defaults display_edit_password display_edit_payvia display_edit_payvia_info display_edit_skin display_graph display_hourly_sales display_latest_adtools display_map display_news display_page_peel display_payment_history display_payment_summary display_ratio display_reward_category display_reward_order display_reward_purchases display_signup_advanced display_signup_basic display_signup_payvia display_stats display_stats_calendar display_stats_table display_stats_form display_stats_retention display_stats_subscription_details display_top_stats display_timezones dump_data get_first get_period_end get_reward_categories list_billers list_campaigns list_linkcodes list_options list_programs list_sites list_tool_categories list_tours list_xsells rebuild_form rebuild_link rebuild_query reward_points tooltip Common Parameters assign assign_prefix count data_only display_on_assign start tpl NATS Configuration Admin The Configuration Admin Log Admin Activity IP Address Filtering MEMBER_EXPIRE_PAD Fraud Configuration Email Configuration Affiliate Signup Email Affiliate Postback Affiliate Analytics Throttling API API Add Affiliate Admin Get Adtools Adtool Types Adtool Categories Ping Affiliate Get Campaigns Get Member Details Get Member Instant Upgrade String Get Member Package Upgrade String Get Member Upsell String Get Member Token Rebuy String Set Affiliate Defaults Set Affiliate Admin Settings Set Affiliate Customs Decode Natscode Set Affiliate Information Set Affiliate Settings Set Member Details Bulk Import Adtools Send Email API Function Add Manual Member Expire Manual Member Misc. Admins Database Cleanup Support Admin Logs Admin Rules Freeform Date Troubleshooting Common Errors Fix Graphs Expired License Zend License CAPTCHA Zip Files in Internet Explorer NATS Extras TMMid Gallery Builder Module Remote Affiliate Authentication Build Your Own Anything Module Shopping Cart Sales Moving Tours, Members' Area, and Galleries Admin Areas Extended Sales NATS Code Wordpress Plugin Error_message_display

NATS 3 About NATS 3 NATS3 Requirements IPSP Integration For Affiliates Affiliate Link Codes Affiliate Adtools Affiliate Rewards Affiliate Referral Stats Automatic Campaigns Affiliate Billing Info Deep Linking Affiliate Defaults Linkcode ASP Query String NATS3 Main Program Page TubeStudio Adtools Setup Apache Configuration MySQL Settings Creating Admin Accounts File Upload Setup Link Domain NATS3 Files and Directories NATS Go Live Checklist Moving NATS3 Admin Overview Troubleshoot Chart Director Fix Admin Overview Graphs Admin Reports Strack Surfer Stats Chargeback and Credit Amount Inaccuracies Payments Admin Payment Dump Setting Up Pay Vias Hidden Payout Options Temporary Payout Payment Option Webmasterchecks Affiliate Payout Domestic Wire Instant Payments Intercash International Wire Moneybookers RevUpCard NATS Payments PayPal Payment Dump Entry Numbers Payment Dump Variables Payout Scales Epassporte Affiliates Admin Override ID Numbers Account Representatives Affiliate Starting Balance Affiliate Documents Affiliate Start Page Affiliate Referrals Manual Sale Manual Invoice Statistic Query Strings Creating Admin Accounts Affiliate-Specific Join Options Disabled and Banned Affiliates Verifying Account Changes Members Admin MySQL Auth Members Admin Member ID Numbers Expired Members Creating Trial Members Member Delete Member Logging Trial Member Sites Admin Sites Site Setup Tour Redirection ID Numbers Automail Site User Management Username Checking Join Form Errors Free Pre-Initial Checkbox Payouts Based on Program and Join Options Payouts Based on Join Option and Per Option Adding Extra Site Tours Site Partner Join Options Multisite Access Removing Join Options Tour Setup Site Undelete Join Option Box vs Button Redirecting Traffic to a Sponsor Qualified Join Page Hits Type-In Traffic Allowed languages Linkcode Decoding Programs Admin Programs Admin NATS Program Adding Programs ID Numbers Paid Trials Main Program Page Pay Per Click Pay Per Sale Revenue Share Program Default Payouts Referral Payout Tier Third Parties Admin Third Parties Chargeback and Credit Amount Inaccuracies AdultFriendFinder AdultFriendFinderAPI   AdultFriendFinder versus AdultFriendFinderAPI AllMightyContent CamSpot Cams DatingGold EffexMedia Gamelink Jettis International Third-Party Mallcom My Dirty Hobby SexGoesMobile (SGM) Streamate   Streamate Biller versus Third-Party VideoSecrets WebCamClub   WebCamClub with Biller WebCams XonDemand Adtools Admin Adding Adtools Linking to Join and Tour Pages Duplicate Site Adtools Banner Hot-Linking Adding RSS Feeds to NATS's Adtools Downloadable Adtool Bulk Importer Dump Hosted Galleries Hosted Adtool NATS Thumbnails TubeStudio Adtools Admin Billers Admin Biller Cascade NATS Cascades Adding Cascades Biller Cancel Promotions Cascade Weight Autocascade Hidden Cascades Geo-Targeting Cascades Type-In Cascade Post-Biller Templates Extra Biller Fields HTTPS Gateways Payment Deduction Timed Cascade Rules Multiple Biller Accounts Upgrade Plus Adding a Biller   Biller Instructions NATS3 Biller List 123Bill 365Billing 2000Charge Aconti Payment Service Allopass Ampay Authorize.net Bill1st Gateway Billing Line BoaCompra Card Gate Plus CCBill CCBill Direct Pay CCBill Web900 ChargeMeLater ClearCard ClearCard IDV Commerce Gate CurePay DHD Media E-Pay Company Edelweiss Card EGatePay ElectraCash EMerchantPay (Interconsult) EnterCharge Epoch EProcessingNetwork EuroBill EPGBill.com FABILLING Global Access GTBill GXBill HeidelPay HeidelPay Gateway iBill ICN Ltd. Infinity Payment Interconsult Jettis Jettis Gateway Jettis International Linkpoint LocalBilling Merchant Partners Gateway Merchant Partners Membership Merchant Solutions MyVirtualCard Netbilling Netbilling Native NetCash Netpay International NoCreditCard Oakbill Optimized Payment System Password by Phone Paygea Payment Network Paysite Cash PhoneAccess Plug'n Pay PPPCard Protx Pure Vanilla RocketGate RSBilling SafeCharge Secure Billing World SegPay Sonic Bill StandardBill Streamate Symmetrix TrustCash TrustCharge txtNation Ukash Universal Processing Verotel Pro VXSBill WebBilling WebPay WTS WTSeu YNOT Processing Zombaio Netbilling v3 Upgrade Instructions Purchasing Tokens Through Netbilling Streamate Biller versus Third-Party Switching From Epoch to Epoch EU Epoch Member Approval Plus Multiple Biller Accounts Popups Admin Popup Chain Price Cascade Rewards Admin Rewards Admin Reward Points Unshipping Rewards Cross-Sells Admin Cross Sells Admin Process Gateway Cross Sales Outside NATS Outgoing Gateway Cross Sales CCBill Cross-Selling Cross Sells: A to Z Mailing Admin NATS3 Mailing Admin Email Expired Members Repeating Email Member Cancel Emails Member Chargeback Emails Member Credit Emails Member Join Emails Member Rebill Emails Mailer Template Variables Skins & Templates Admin Smarty Plugins Skins Editing Skins Creating Skins Switching Skins Templates nats_code Affiliate Stats Template Affiliate Support Template Affiliate Login Template custom errors.php Template Array Variable Detailed Stats NATS Variables Dialer Statistics Affiliate Signup Post URL Variables Member Usernames & Passwords Output An Affiliate's Last Paid Date Custom Program and Campaign Selection Pages CAPTCHA Removal Username Recommendations Password Retrieval Post-Biller Templates Geo-Target Join Options Template Caching Random Usernames and Passwords Base Templates Protecting Template Data Mail Reseller Signup Template Variable Names Smarty Smarty print array News Section Templating Affiliate Signup Email Getting The NATSCode Checking for Usernames on All Sites Adding Stats to Affiliate Pages Affiliate Join Page Linkcodes   Template Functions nats_apache_note nats_convert_bytes nats_decode nats_encode nats_fhg nats_helper_row_fill nats_get_gateway_token nats_list_campaigns nats_list_programs nats_list_sites nats_my_decode_entities nats_my_encode_entities nats_smarty_function_ajax_box nats_smarty_function_amount_owed nats_smarty_function_gateway_xsell nats_smarty_function_getbonus nats_smarty_function_get_paid_date nats_smarty_rebuild_link nats_smarty_rebuild_query nats_smarty_function_reseller_ajax_box nats_tooltip nats_tour_report nats_wmref_list Template Shortcuts ajax_box amount_owed apache_note convert_bytes fhg gateway_xsell get_loginid_from_campaignid get_gateway_token get_paid_date list_campaigns list_programs list_sites new_gateway_xsell rebuild_link rebuild_query reseller_ajax_box reward_points tooltip tour_report wmref_list Common Parameters assign assign_prefix count data_only display_on_assign start tpl   Helper Functions nats_code nats_extract_program nats_extract_site nats_modify_program nats_modify_site Configuration Admin NATS3 Configuration Options Extra Country Options PayVia Minimum Log Admin Activity IP Address Filtering MEMBER EXPIRE PAD Second Sign-up Matching Affiliate Signup Email GeoIP Fake Upgrade Misc. Admins Database Cleanup Troubleshooting Common Errors Auto Login Emptying Forms AutoLogin Cookie CAPTCHA Changing Licenses Expired License Zend License NATS Extras Remote Affiliate Authentication Shopping Cart Sales Moving Tours, Members' Area, and Galleries Require W-9 Admin Areas Fraud Report NATS Content of the Day Module NATS Load Balancing Module Gallery Builder Module Build Your Own Anything Module NATS Code Wordpress Plugin Error_message_display TMMid

NATS can protect some pages with CAPTCHAs, providing an additional security measure that helps to prevent against automated login attempts.

If your CAPTCHA image is missing from a page, ensure your server has both GD and FreeType installed, and that GD was compiled with FreeType support. Also, make sure the CAPTCHA is enabled on the template.

For more information on CAPTCHA images and how to add them in NATS4, please see our NATS4 Adding a Verification Image wiki article.

See Also

• CAPTCHA -- Wikipedia's CAPTCHA article