IP protection

Marc Wag­ner

March 11, 2025

2 min read|

IP pro­tec­tion allows you to block IP addres­ses for a peri­od of time defi­ned by you after mul­ti­ple spam mes­sa­ges have been sent. We recom­mend that you only acti­va­te this opti­on if you con­ti­nue to recei­ve spam mes­sa­ges despi­te all other mea­su­res.

IP pro­tec­tion logs all fai­led Captcha attempts. As soon as the limit you have defi­ned is rea­ched within the spe­ci­fied peri­od, the IP address is encrypt­ed, stored in the data­ba­se and blo­cked for the spe­ci­fied peri­od.

Attention

Blo­cking the IP address by the IP pro­tec­tion of the Captcha plug­in only means that the visi­tor can no lon­ger send forms that are pro­tec­ted by the plug­in. It is still pos­si­ble to access the web­site and read con­tent.

Activating the IP protection #

To acti­va­te IP pro­tec­tion and use it effec­tively, fol­low the steps below:

  1. Navi­ga­te to the Captcha menu item
  2. Scroll until you reach the IP pro­tec­tion ent­ry
  3. Acti­va­te the IP pro­tec­tion by flip­ping the switch.
  4. Set the maxi­mum repeat attempts to 3
  5. Set the time inter­val to 300 seconds
  6. Reset the unlo­cking func­tion after X seconds, 3600
  7. Set the inter­val pro­tec­tion to 60 seconds.
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Explanation of terms #

Here you will find a detail­ed expl­ana­ti­on of the terms used in the set­tings to make con­fi­gu­ra­ti­on easier for you.

TermDescrip­ti­on
Maxi­mum repeat attemptsThis value defi­nes how often the forms sent by the user must be clas­si­fied as spam befo­re they are blo­cked.

Only forms that have been sub­mit­ted in direct suc­ces­si­on are taken into account. Suc­cessful veri­fi­ca­ti­on of the user resets this coun­ting pro­cess.
Time inter­valThis value defi­nes the time span in seconds within which the forms are eva­lua­ted. The maxi­mum num­ber of retries must be excee­ded within this peri­od for the IP address to be blo­cked.
Unlo­cking after X secondsThis value spe­ci­fies how many seconds an IP address remains blo­cked befo­re it can be used to send forms again.

Note: IP addres­ses are often assi­gned dyna­mi­cal­ly by the Inter­net pro­vi­der and can the­r­e­fo­re be used by dif­fe­rent users. Blo­cking an IP address per­ma­nent­ly or for a very long time could the­r­e­fo­re have a nega­ti­ve impact on legi­ti­ma­te visi­tors to your web­site.
Inter­val pro­tec­tionThis value defi­nes the time span in seconds within which suc­ces­si­ve forms are clas­si­fied as spam.

Exam­p­le: If a form is sent seve­ral times within 60 seconds, the­se attempts are clas­si­fied as spam.

Delete / release IP entries #

You can unblock the blo­cked IP addres­ses at any time. To do this, go to Captcha and scroll to the IP pro­tec­tion tab.

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Here you will find the ent­ries for IP blocks and IP pro­to­cols.

IP blo­cking

All IP addres­ses that have been blo­cked are saved in the IP blocks sec­tion. Click Dele­te all to release the IP addres­ses.

IP pro­to­cols

All IP addres­ses that have been veri­fied as spam at least once are saved in the IP logs sec­tion. Click Dele­te all to release the IP addres­ses.

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Artic­le from:

Marc Wag­ner

Hi Marc here. I’m the foun­der of Forge12 Inter­ac­ti­ve and have been pas­sio­na­te about buil­ding web­sites, online stores, appli­ca­ti­ons and SaaS solu­ti­ons for busi­nesses for over 20 years. Befo­re foun­ding the com­pa­ny, I alre­a­dy work­ed in publicly lis­ted com­pa­nies and acqui­red all kinds of know­ledge. Now I want to pass this know­ledge on to my cus­to­mers.

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