Fixing blocked web research when your Centurion can't reach websites

How to resolve IP blocking that stops your Centurion from searching the web, scraping pages, and extracting data — using the Firecrawl Cloud API.

Updated July 13, 20264 min read

If your Centurion is having trouble performing web searches, scraping pages, or extracting data from websites, it may be because your Centurion brain's public IP address has been flagged by anti-bot systems. This tends to happen on appliances that do a high volume of web research. This article explains how to recognize the problem and get research working again.

Symptoms

You may be running into this issue if you notice several of the following at once:

  • Search engines such as Google and Bing return no results or are blocked
  • Sites like SEC EDGAR return 403 errors
  • LinkedIn, Cloudflare-protected sites, and many company websites won't load
  • Brave Search returns corrupted or unusable results
  • Most web extraction attempts fail
Diagram showing a Centurion brain IP address being blocked by multiple websites with 403 errors
When an IP is flagged, many sites return 403 errors and research capability drops sharply.

Note

Some direct website connections may still work occasionally, but your Centurion's overall research capability will be noticeably reduced.

What causes it

This happens when your Centurion brain's outbound IP address gets flagged by security systems as suspicious or bot-related traffic. Once an IP is flagged, many major websites and services begin blocking or restricting access from it — regardless of what your Centurion is actually trying to do.

Resolution: use the Firecrawl Cloud API

If your Centurion is affected by IP blocking, the most effective immediate fix is to have it use the Firecrawl Cloud API for research instead of relying on the direct browser or search tools. Firecrawl handles the connection from its own infrastructure, so the flagged IP is no longer in the way.

Step 1: Create a Firecrawl account

  1. Visit firecrawl.dev.
  2. Sign up for an account — a free tier is available.
  3. Verify your email address.

Step 2: Generate your API key

  1. Log into the Firecrawl dashboard.
  2. Go to API Keys (usually found under Settings).
  3. Click Create API Key.
  4. Copy the key immediately — it's only shown once.
Firecrawl dashboard panel with a masked API key and a Create API Key button
Generate a key in the Firecrawl dashboard and copy it right away — it's only displayed once.

Warning

Treat your API key like a password. Don't paste it into shared documents or public chats, and generate a new one if you think it has been exposed.

Step 3: Add the key on your Centurion brain

Start a conversation with your Centurion and give it an instruction like this, or add the key through your brain's admin screen if one is provided:

From now on, use the Firecrawl Cloud API for all web research and scraping tasks.
Use this API key: [INSERT YOUR API KEY HERE]
Please switch to Firecrawl's scrape_url or crawl_url functions instead of the
direct browser tools or search engines.

Step 4: Test it

Ask your Centurion to run a test scrape on a site that was previously blocked — an investor relations page or an SEC filing works well — and confirm it can now return clean, usable data.

Verifying it worked

Once configured, your Centurion should be able to complete research tasks that were previously blocked, including pulling contact information and browsing protected websites. If a task still fails, ask your Centurion to retry it explicitly through Firecrawl, since it may still be defaulting to the direct tools.

Alternative solutions

Firecrawl is the fastest fix, but a few other approaches can help depending on your situation.

SolutionBest used whenNotes
Residential proxy serviceHigh research volumeRequires additional setup
Self-hosted FirecrawlYou prefer full controlMore complex to maintain
Multiple Centurion brainsRunning several CenturionsHelps distribute research load

Recommendations

  • Use Firecrawl as the primary web tool for any Centurion that regularly performs research.
  • Keep an eye on research success rates, and revisit this article if the blocking symptoms come back.
  • For research-heavy instances, consider dedicated exit nodes or proxies over time.

Tip

If web research only fails occasionally, it may be a temporary network issue rather than IP blocking. Check Connection timed out first before setting up Firecrawl.

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