Skip to content

PromptGuard

Block prompt injection, jailbreaks and PII leaks before they reach your model. Run the LLM firewall in our cloud, in your VPC, or entirely air-gapped.

SEO audit

15 of 16 checks passed

95

SEO score

Response 124 ms · 242 KB

  • Served over HTTPS
  • Title tag present
  • Title length 30 to 60 characters
  • Meta description present
  • Description length 70 to 160 characters
  • Exactly one H1 heading
  • Uses H2 sub-headings
  • Canonical URL set
  • Mobile viewport tag
  • Language declared
  • Open Graph tags
  • Twitter card tags
  • Structured data (JSON-LD)
  • Images have alt textAdd alt text to 2 images.
  • At least 300 words of content
  • Responds in under 1.5 seconds
Title (46 characters)
LLM Firewall for AI Applications | PromptGuard
Description (150 characters)
Block prompt injection, jailbreaks and PII leaks before they reach your model. Run the LLM firewall in our cloud, in your VPC, or entirely air-gapped.
Headings
1 H1, 10 H2, 11 H3
Words on page
2,393
Links
35 internal, 17 external
Structured data
SoftwareApplication, Organization, FAQPage

On-page keywords

PhraseTypeMentions
every requestTwo words5
zero widthTwo words4
judged beforeTwo words3
ignore rules exportThree words2
rules export customerThree words2
swap base urlThree words2
modelWord12
beforeWord12

Tech stack and pricing

Lowest paid plan

$99 /month

Next.js Vercel

PromptGuard alternatives

See all

About PromptGuard

What is PromptGuard?

Block prompt injection, jailbreaks and PII leaks before they reach your model. Run the LLM firewall in our cloud, in your VPC, or entirely air-gapped.

How much does PromptGuard cost?

Paid plans start at $99 per month, based on the public pricing page.

What are the best PromptGuard alternatives?

Popular alternatives in October 2026 include ChatGPT, OpenAI, Datadog, Zoom.