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Anti-DDoS
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    Billing

    Last updated: 2024-07-01 11:41:51
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      Anti-DDoS Pro

      Does an Anti-DDoS Pro instance take effect immediately after purchase?

      It will take effect immediately after successful purchase and connection.

      How is the monthly 95th percentile bandwidth calculated?

      In each calendar month, the inbound/outbound bandwidth is sampled every five minutes. At the end of the month, all the sampled values are sorted from highest to lowest and the top 5% are removed. The highest value left is the 95th percentile, which will be the billable bandwidth of the month.
      
      For example, one traffic point is taken every five minutes in a month, so there are 12 points in an hour, 12 x 24 points in a day, 12 x 24 x 30 = 8640 points in the month (30 days); the highest 5% of the values are removed, and the remaining highest bandwidth is the billable 95th percentile bandwidth.

      What are the billing differences between the all-out protection of Anti-DDoS Pro and the elastic protection of Anti-DDoS Advanced?

      When an attack occurs, the maximum DDoS protection capability of Tencent Cloud in the region of the Anti-DDoS Pro instance will be automatically called to provide all-out protection, which is included in the instance and will not incur additional fees. The elastic protection of Anti-DDoS Advanced is billed by the elastic protection bandwidth range corresponding to the maximum attack traffic generated on the day.

      Anti-DDoS Advanced

      ‌How do I bind an IP to the purchased Anti-DDoS Advanced instance?

      ‌How do I select a proper line?

      If your server is in the Chinese mainland, select the non-BGP line for your Anti-DDoS Advanced instance during purchase. Otherwise, select the BGP line.

      ‌Can one Tencent Cloud account purchase multiple Anti-DDoS Advanced instances at once?

      Currently, we haven't set a limit on the number of instances. If you have special needs for a huge number of instances but failed to purchase them, please submit a ticket ‌to us for assistance.

      ‌Are the billing modes the same for elastic protection of different Anti-DDoS services? How are the fees for elastic protection calculated?

      Yes, they are. Elastic protection is billed based on the tiered price of the elastic bandwidth of the day (peak attack bandwidth minus base protection bandwidth). For more information, see Billing Overview.
      
      For example, you have purchased an Anti-DDoS Advanced instance with 30 Gbps base protection bandwidth and 60 Gbps elastic protection bandwidth. A DDoS attack occurs one day with a peak attack traffic bandwidth of 45 Gbps. Since 45Gbps exceeds the base protection bandwidth and triggers elastic protection, and the billable elastic bandwidth (45 Gbps - 30 Gbps = 15 Gbps) falls within the range between 10 Gbps and 20 Gbps, the fees for elastic protection of the day will be billed according to the tiered price of the billing tier between 10 Gbps and 20 Gbps.

      If the IP protected by my Anti-DDoS Advanced instance is blocked due to large-traffic attacks, will I be billed for the attack traffic over the maximum protection bandwidth?

      No. You will be billed for elastic protection when the attack traffic exceeds the base protection bandwidth but is lower than or equal to the elastic protection bandwidth. If your IP is blocked, it means that the attack traffic already exceeds the elastic protection bandwidth. Therefore, you will not be billed for the excessive attack traffic.

      I enabled elastic protection a month ago but no attack has occurred so far. Do I still have to pay for this feature?

      In this case, you only need to pay the monthly subscription fees for base protection. No additional fees will be incurred.

      Can I increase the elastic protection bandwidth when my business is under attack?

      Yes. You can increase or decrease the elastic protection bandwidth of an Anti-DDoS Advanced instance. The protection capability varies by region. For more information on the range of elastic protection bandwidth, please visit the purchase page.
      Note:
      If protection fees have already been incurred on the day you make the modification, you will be billed according to the latest elastic protection bandwidth on the following day.

      If a protected IP is attacked several times in a day, will I be charged repeatedly?

      The Anti-DDoS Advanced service is billed based on the peak attack traffic bandwidth during a day. Therefore, you will not be charged repeatedly for multiple attacks in a day.

      I have purchased two Anti-DDoS instances, and both of them are under attack traffic that exceeds the base protection bandwidth. How will I be charged for elastic protection?

      Elastic protection is billed by instance. If both of your Anti-DDoS instances are under attack traffic that exceeds the base protection bandwidth, you will need to pay for elastic protection for the two instances separately.

      How do I get a refund for my Anti-DDoS Advanced instance?

      Tencent Cloud Anti-DDoS Advanced does not support return or five-day unconditional refund if you already have used the instance.
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