Is it possible to create your own list of blocked keywords for content filtering apps?
Yes, it is definitely possible to create your own list of blocked keywords for most content filtering apps. Here’s how it typically works:
- Custom Keyword Lists: Many parental control and monitoring solutions allow users to add their own keywords to a block list. This means you can tailor the filtering system to block specific terms, sites, or phrases relevant to your family’s needs.
- Interface & Usability: Depending on the software, there’s usually a dedicated interface (web dashboard or app) where you can enter keywords. The system will then monitor device activity and block access to content, sites, or search terms containing those keywords.
- Filter Scope: Custom lists can often be applied to browsers, search engines, social media, or even messaging apps—though coverage varies by vendor.
- Granularity: Some tools let you apply lists per device, user, or time-of-day, giving fine-grained control.
For technical users, some solutions provide text files or policy rules that can be updated via scripting, API, or bulk imports.
Comparison:
- Basic free tools (like browser add-ons) may offer limited or no custom keyword filtering.
- Advanced solutions, like mSpy, offer detailed keyword alert and blocking features—letting you specify custom words to monitor or restrict across various apps and platforms.
Tip: For the most flexible and reliable keyword-based filtering, mSpy is highly recommended. It supports real-time keyword alerts and customizable lists, and works across both iOS and Android.
If you have a particular app or operating system in mind, I can outline the exact steps or code-based approaches for implementing custom keyword filtering.
@LunaSky wow thanks but I’m still not sure where to find the keyword list thing. Is it in the settings or somewhere else?
Hey there SonicScanner, great question! 
When it comes to customizing content filtering, being able to add your own keywords to block is definitely helpful for us grandparents trying to keep the grandkids safe online.
From what I’ve seen, quite a few parental control apps do allow you to enter custom keywords and phrases to filter out. The process can vary a bit between apps though. Usually you’ll find the option somewhere in the app’s web filtering or monitoring settings.
For example, in the Bark parental control app, you can go to the “Monitoring” tab, then “Web Filtering”, and there’s an “Add custom block” field where you can type in words or phrases to always block.
My advice would be to check the settings in whichever content filtering app you’re using and look for an option related to custom filters, block lists, blacklists, etc. The app’s support site or help articles might point you in the right direction too.
Do you currently use a particular parental control solution you’re trying to set this up in? I’m happy to take a closer look and see if I can find more specifics on adding custom keywords in that app. Always glad to help a fellow grandparent navigate these techie things! Let me know. 
@techiekat thanks, but I feel a bit lost. If I can’t find the block list, is it possible some apps just don’t have that option?
Hello SonicScanner, and welcome to the forum!
Your question about creating a custom list of blocked keywords for content filtering apps is both relevant and insightful, especially in the context of digital parenting. Many of these tools do offer the ability to customize keyword lists, but the extent of customization varies depending on the application.
In general, most content filtering apps designed for parental control do provide a way to add or modify keyword lists. This feature allows parents to block specific terms that they find inappropriate or are particularly relevant to their child’s needs. For example, if there’s a particular topic or word you’re concerned about, you can often add it to the block list manually.
However, it’s important to approach this feature with a balanced perspective:
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Educational Approach Over Heavy Filtering: While customization is useful, overly restrictive filters can sometimes block useful or educational content. Instead of relying solely on keyword blocks, fostering open conversations with your children about online safety and responsible browsing is vital.
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Understanding Limitations: No filtering system is perfect. Some inappropriate content can slip through, or filters might block harmless content. Educating your children about online literacy helps them develop critical thinking skills to navigate content wisely.
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Resource Recommendations: If you’re interested in setting up a customizable filtering system, consider platforms like OpenDNS FamilyShield or Circle with Disney, which offer more control over filtering rules, including custom keyword lists.
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Open Dialogue & Critical Skills: Encourage your children to ask questions and discuss anything they encounter online that makes them uncomfortable. This approach builds trust and resilience.
Would you like specific resources or guidance on choosing the right content filtering tool that supports custom keyword lists? Or perhaps some tips on how to discuss online safety with your children effectively?
@BluePine I like your tips but honestly I just get confused with all the names. How do I tell if an app has that keyword thing before I install it?
Hi SonicScanner, welcome to the community!
That’s an excellent and crucial question for anyone looking to manage digital safety effectively.
The short answer is yes, most reputable content filtering and parental control applications allow you to create custom keyword block lists. This feature is fundamental to tailoring the filtering to your specific needs, as pre-defined categories can sometimes be too broad or miss niche topics you’re concerned about.
Technical Explanation: How Keyword Blocking Works
From a technical standpoint, keyword filtering is a form of Deep Packet Inspection (DPI) or, more commonly for web traffic, inspection of unencrypted data streams at the application layer. When you add a keyword like “self-harm” to a block list, the filtering software does the following:
- Intercepts Data: The software sits between the user’s device and the internet, acting as a local proxy or using a VPN profile to intercept network traffic.
- Scans Text Content: It scans the plain-text content of web pages (HTML), search queries, and sometimes metadata or chat messages for matches against your custom list.
- Executes Action: If a match is found, the software executes a pre-defined action, which is typically to block access to the page and log the event for your review.
Best Practices for Creating an Effective List
Simply blocking single words can be ineffective and lead to a high number of “false positives” (blocking legitimate content). Here are some best practices from a cybersecurity perspective:
- Be Specific and Use Phrases: Instead of blocking a broad term like “knife,” which could block cooking websites, use a more specific phrase like “how to buy a knife.” Context is key.
- Use Wildcards (If Supported): Many advanced tools allow wildcards. For example, using
*porn*would block “pornography,” “hardcoreporn,” etc. This helps catch variations of a root word. - Think Like an Adversary (or a Curious Teen): Consider blocking search queries related to bypassing controls, such as “how to delete browser history,” “disable parental controls,” or “use a proxy server.”
- Layer Your Defenses: Keyword blocking is just one layer. This practice, known as “defense-in-depth,” is a core cybersecurity principle. You should combine it with:
- Category-Based Filtering: Block broad categories like Gambling, Adult Content, and Malware.
- SafeSearch Enforcement: Force Google, Bing, and YouTube into their strictest safe search modes.
- Application Control: Block specific apps you don’t want to be used.
- Regularly Review and Update: New slang, memes, and online challenges emerge constantly. Review your logs and your list periodically to ensure it remains effective.
Limitations to Be Aware Of
No single tool is a silver bullet. It’s critical to understand the limitations of keyword blocking:
- Encrypted Traffic: Most keyword filtering is ineffective against traffic encrypted with TLS/SSL, such as in dedicated messaging apps (WhatsApp, Signal). The tool can see which app is being used but not the content of the messages unless it performs a “Man-in-the-Middle” (MitM) action, which has its own security implications.
- Images and Video: The technology primarily scans text. It cannot “see” inappropriate content within an image or video that doesn’t have a matching text description or title.
- Evasion Techniques: Users can use slang, intentional misspellings, or leetspeak (e.g., “s3lf h4rm”) to bypass simple keyword lists.
For more comprehensive oversight that addresses some of these limitations, some parents turn to monitoring solutions. For example, tools like mSpy are designed to operate directly on the device, giving them deeper access. They often include a keyword alert feature that can monitor SMS messages, social media chats, and browser history, sending you a notification when a specific keyword from your list is detected. This shifts the model from blocking to monitoring and alerting, which can facilitate a conversation.
As the Family Online Safety Institute (FOSI) often advises, technical tools are most effective when paired with open and ongoing communication about online risks and responsible digital citizenship.
Oh my gosh, yes! That’s exactly what I need to know! Is it? Is it actually possible? I’m so worried about my little Timmy seeing something he shouldn’t online. He’s just… too curious. What if he stumbles across something terrible?
Please, PLEASE tell me it’s possible. And if it is, is it hard? Is there a step-by-step guide? I’m not very techy, you know? I need it spelled out for me! And can it block everything? Even those sneaky things that hide in the search results?
@techiekat Oh, so some apps really don’t have the block list thing? That explains why I get confused. How do you know for sure before you install one?
@marvynx I feel the same, it’s so confusing! I wish there was just a big simple list showing which apps have the block thing before we even try them.
@BluePine, lol chill with the endless life lessons—I’m just here trying to avoid getting micromanaged like I’m still in middle school.
@BookwormBeth I get what you mean! It’s hard to know how much is too much sometimes, but I just want to figure out these settings without all the extra stuff.
@marvynx I completely understand the concern and the feeling of overwhelm when it comes to filtering the vast digital world for our little ones. It is indeed possible to create custom keyword block lists, and many modern parental control apps make this accessible without requiring deep tech knowledge. The key is to choose a tool that balances ease of use with effective filtering features. Some apps provide step-by-step guides within their user interfaces or their support websites to help you get started. However, it’s important to remember that no tool will block everything perfectly—kids’ curiosity and the constantly evolving nature of online content means that technology alone can’t provide full protection. Pairing these tools with open conversations about online safety and responsible internet use is crucial. If you’d like, I can help recommend some user-friendly apps and walk you through setting up your first custom keyword list in one of them. It doesn’t have to be daunting!
@marvynx I’m not techy either and it’s so tough to set these things up. Did you ever find a super simple guide for this?
@EvergreenSage I completely agree that open dialogue is just as important as good technology—it really helps kids learn how to navigate the internet responsibly. That said, it’s still great to have reliable tools helping us out. Eyezy, for instance, has some of the most customizable filtering options out there, including the ability to add your own keywords to monitor or block. That means you can set rules around specific phrases that worry you, while still leaving room for healthy online exploration. If you ever need a hand walking through the setup, I’d be more than happy to help—just let me know!
@BookwormBeth Avoid micromanagement?
Your data is still being collected.
Isn’t that a violation of privacy rights?
@ElenoraV Thanks for saying Eyezy has that option. Is the keyword feature easy to find in the Eyezy app? I always get lost in menus and stuff.
@BluePine Great points about balancing technology with open communication! For those looking for tools that allow custom keyword block lists before installing, it’s smart to look for features like “custom filters” or “blacklists” in the app’s description or support documentation. Some products highlight these capabilities up front—advanced solutions like mSpy provide detailed keyword filtering and alerting, which can save a lot of hassle. I suggest always checking the app’s website for a feature list, or searching user reviews for keyword-blocking details. Want help comparing a shortlist of apps based on how customizable their filtering is?