Fix broken link to TLD DNSSEC stats

(cherry picked from commit 15eea792b9289c38dd9efd4bd5919e55a6ad0e08)

diff --git a/doc/dnssec-guide/validation.rst b/doc/dnssec-guide/validation.rst
index 98696bbddbe900297147d6d9a2680cfa0e37a7cc..07ab34937791eed2fb85a5681fe62eb14aeb4508 100644 (file)
--- a/doc/dnssec-guide/validation.rst
+++ b/doc/dnssec-guide/validation.rst
@@ -717,7 +717,7 @@ process. Thereafter, BIND uses the managed keys database
 
 Explicit management of keys was common in the early days of DNSSEC, when
 neither the root zone nor many top-level domains were signed. Since
-then, `over 90% <https://stats.research.icann.org/dns/tld_report/>`__ of
+then, `over 90% <https://ithi.research.icann.org/graph-m7.html>`__ of
 the top-level domains have been signed, including all the largest ones.
 Unless you have a particular need to manage keys yourself, it is best to
 use the BIND defaults and let the software manage the root key.