How does Google crawl and index the web? The Fixer breaks down common Google crawlers (Googlebot, AdsBot, Imagebot), how to fetch verified IP ranges from googlebot.json, automated Reverse DNS verification, and firewall rule configurations.
Cloudflare's Web Application Firewall (WAF) provides multiple verification mechanisms to defend against hackers, botnets, and malicious traffic while maintaining user experience. Learn the detailed differences between Managed Challenge, JavaScript Challenge, and Interactive Challenge, and how to choose the right security configuration for your website.
In the digital age, website security is the top priority for every site administrator. As the world's most popular content management system, WordPress attracts a huge number of users—and the attention of hackers alike. Although WordPress itself is already sufficiently secure, and installing too many plugins consumes a great deal of system resources (especially security tools that constantly monitor the system), the uneven quality of plugin and theme developers means a backdoor can open at any time for hackers to slip in easily.
Starting at some unknown point yesterday, the Vedfolnir website suddenly became very unstable, with connections frequently delayed and error code 500 (similar to 404) constantly appearing. After the network administrator checked the system, it was found that CPU usage had surged to 100% full speed and had maintained that high load for several hours.
