That is one bad ass backlink profile - very impressive
No idea on value - would be very interested in seeing some appraisal figures
Ahref below
Domain Rating 84
Backlinks
191,267
100% dofollow
Referring Domains
98,294
100% dofollow
Moz Below
Domain Authority 40
Linking Domains
67.9k
Inbound Links
105.6k
Some of the linking domains come from (with their DR rating below)
who.int
95
php.net
93
apache.org
93
sourceforge.net
93
stanford.edu
93
gnu.org
93
biglobe.ne.jp
93
wiley.com
93
oracle.com
93
ibm.com
93