Cloudflare, a leading content delivery network and security service provider, occasionally blocks visitors to protect websites from potential online threats. When you encounter an 'Attention Required' page from a site using Cloudflare, it typically indicates that your visit was flagged due to suspicious activity or the input of restricted content.

The triggering actions can vary widely and include but are not limited to submitting specific keywords, attempting SQL injections, sending malformed data, or engaging in other automated activities. Such measures help safeguard websites from common cyberattacks such as DDoS attacks, scraping, and brute force login attempts.

If you find yourself blocked by Cloudflare, there are several steps you can take:

1. Examine Your Actions: Reflect on what led to the blockage; this could be an unintended submission of restricted content or a misunderstanding of website interaction guidelines.
2. Contact the Site Owner: Reach out to the site owner via email and explain your situation, including details of how you arrived at the page and any relevant actions taken before being blocked. Mentioning the Cloudflare Ray ID found at the bottom of the 'Attention Required' page can aid in identifying your specific case.
3. Seek Assistance from Cloudflare Support: For more complex issues or persistent blocks, consider contacting Cloudflare’s support for guidance on how to proceed, especially if you were engaged in activities outside of your control or misunderstood the site's guidelines.

It is crucial to approach such situations with understanding and patience, as website security measures are essential to protect against cyber threats. Engaging constructively can help resolve the issue amicably, allowing you to access the desired content without compromising security protocols.