ICANN | Revised VeriSign Registry Agreements: Appendix D

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Revised VeriSign Registry Agreements: Appendix D

Posted: 16 April 2001

Performance Specifications

Monthly Metric


Total outage

8 hours

Unplanned outage

4 hours

Major upgrade outage

12 hours

Check domain average

3 seconds

Add domain average

5 seconds


  • Two "Major Upgrades" per year are allowed, each of which may last 12 hours.
  • Registry Operator and ICANN will discuss in good faith addition of appropriate metrics for nameserver packet loss and round-trip times.

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Page Updated 16-April-2001
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