What do all those "* * *" mean on a traceroute log?

[Albretch Mueller <lbrtchx@gmail.com>]

 I have found a few examples and "explanations" but in the cases of
the examples I have seen by other people, like:

 https://serverfault.com/questions/733005/what-does-having-mean-in-the-command-traceroute-and-how-can-you-cope-wit

 It is not with every site and it is mostly with one hop. I my case it
is with all sites and once the packets reach the web (from hop 5 to
30), from wherever I connect to the Internet. Why would that happen
and why would that -consistently- "happen" to me?

$ traceroute google.com
traceroute to google.com (172.217.0.174), 30 hops max, 60 byte packets
 1  _gateway (199.83.128.1)  6.687 ms  6.660 ms  6.683 ms
 2  199.83.240.2 (199.83.240.2)  6.101 ms  6.622 ms  6.610 ms
 3  ad.nypl.org (199.254.254.1)  6.600 ms  6.588 ms  6.577 ms
 4  199.254.252.1 (199.254.252.1)  6.566 ms  6.590 ms  6.738 ms
 5  * * *
. . .
30  * * *

$ traceroute microsoft.com
traceroute to microsoft.com (20.81.111.85), 30 hops max, 60 byte packets
 1  _gateway (199.83.128.1)  12.353 ms  12.319 ms  12.306 ms
 2  199.83.240.2 (199.83.240.2)  11.803 ms  12.281 ms  12.268 ms
 3  ad.nypl.org (199.254.254.1)  12.256 ms  12.244 ms  12.231 ms
 4  199.254.252.1 (199.254.252.1)  12.255 ms  12.243 ms  12.511 ms
 5  * * *
. . .
30  * * *

$ traceroute debian.org
traceroute to debian.org (149.20.4.15), 30 hops max, 60 byte packets
 1  _gateway (199.83.128.1)  16.821 ms  17.804 ms  17.784 ms
 2  199.83.240.2 (199.83.240.2)  4.739 ms  5.086 ms  5.070 ms
 3  ad.nypl.org (199.254.254.1)  5.054 ms  5.389 ms  5.023 ms
 4  199.254.252.1 (199.254.252.1)  6.805 ms  6.282 ms  6.773 ms
 5  * * *
. . .
30  * * *

 lbrtchx