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#NoMoreSpam

Say goodbye to spam with FormAPI Shield

FormAPI Shield blocks bots and junk submissions with invisible, powerful filters—so you get only clean, legitimate leads without annoying your visitors with captchas.

Profanity

Flag submissions containing inappropriate or offensive language.

Crypto

Identify and flag submissions containing crypto-related terms.

Drugs

Detect and flag submissions with references to drugs or substances.

Fraud

Flag submissions containing suspicious or fraudulent terms.

Porn

Identify and flag submissions with adult content or references.

URL/Emails

Flag submissions from email addresses associated with spam or suspicious activity.

Filter Spam On Your Terms

Adjust our system's strictness behind the scenes. Real users never see a difference, but you gain full control over what gets flagged and quietly sent to your spam queue.

Move the slider to adjust spam sensitivity.

Moderate

Strikes a balance between accuracy and user experience. Blocks most spam while allowing legitimate submissions.

Shield in Action — Real-world Benefits

Cleaner CRM Leads

Stop junk from polluting your Salesforce or HubSpot. Only sync real, high-quality leads.

Support Inbox Sanity

Filter out bot-generated tickets. Your agents see genuine customer messages first.

Product Feedback Without Noise

Automatically hide spam and profanity. Surface real user suggestions and bugs.

Safer Signups & Waitlists

Block disposable emails and scripts. Keep your launch lists authentic and engaged.

Event RSVPs That Stick

IPrevent duplicate and fake signups. Get a true count of attendees.

Quiet Slack & Jira Channels

Stop spam from creating noisy alerts and cards through your webhooks.

Tailor your defense with precision tools that work behind the scenes.

Custom Keyword Validators

Block or allow submissions based on specific words or patterns. Keep irrelevant or harmful content out of your inbox.

Block by keywords
Contains, equals, or regex
Keep submissions on-topic
Filter profanity & spam automatically

Email Allow/Deny Lists

Control which email domains can submit forms. Approve only trusted sources (@company.com) or block known spam domains instantly.

Block fake emails instantly
Approve trusted domains only
Block disposable email providers
Protect lead quality

Smart Honeypot Fields

Add invisible traps that only bots fill out. Automatically discard those submissions—zero friction for real users.

Invisible trap for bots
No CAPTCHA needed
Custom hidden field names
Silent spam submission blocking

Look at what Clients says about us,

“ FormSubmit has made handling submissions so much smoother. The custom API routing is super useful, and the spam filtering saves us tons of time. It does exactly what we need, without any complications. “

Mohammed Mustafa K

Frequently Asked Questions

How does the Keyword Validator work?

You can create lists of words or patterns to block. If a submission contains a blocked word (like spammy keywords or profanity), it's automatically filtered into your spam folder without the user ever knowing.

Can I block only certain email domains?

Yes. Use the Email Blocklist to stop accepting submissions from specific domains (e.g., `*@company.com` for internal forms).

What is a Honeypot field and how does it work?

A honeypot is an invisible field added to your form. Bots often fill it out, while humans do not. Any submission where the honeypot field is filled is automatically flagged as spam.

Will these security features affect my form’s user experience?

No. All these checks happen silently in the background. Legitimate users will never see any warnings, or errors caused by these systems. Only you see the filtered results.

Can I combine these features with the Spam Defense slider?

Absolutely. These tools are designed to work together. For example, you can set a strong Spam Defense level and add a Keyword Denylist for extra protection against specific threats.