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How do I change an A record?What criteria do you analyze?I see lots of requests from several IPs. Could this be an attack?I changed my A record long time ago, but you are not filtering it. What to do?Attackers have found out my origin IP and are attacking it directly. What should I do? directly. What should I do?Who is attacking us?Will a blacklisted user get unblocked after a particular time?During a DDoS attack, we changed your IP address, but we still have problems with the performance. Why?Do you protect against attacks targeted at DNS?Can you disable the protection for some time for the entire site or certain parts of the site?How long does the service enabling take?Which web crawlers doesn't your service block?Force an IP banGet all banned IP addresses for all resourcesRenew SSL certificates
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Home/Web Application Security/FAQ/During a DDoS attack, we changed your IP address, but we still have problems with the performance. Why?

During a DDoS attack, we changed your IP address, but we still have problems with the performance. Why?

Possible causes:

  • Some DNS servers haven't yet updated the records (it depends on TTL), and not all traffic has been redirected to Gcore for filtering. You need to wait.
  • You haven't changed your real IP address to a new one after you had enabled Web Protection. It means that an attacker knows it, so you need to request a new IP address from your hosting.
  • You haven't restricted access to your server. Contact your hosting provider or use a firewall to set up ACL.

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