After seeing this thread and inputs from @PlanetMaster
, I checked my own site and found an issue regarding TLS and informed my host immediately and they resolved it right away. But if I dig deep, then some issues are there (I think they are not 'issues' but 'features') which cannot be solved because they may not be included in my hosting plan. But in general, all are good now. All credits go to @PlanetMaster
and I surely thank @moohook
for respecting the suggestions from him and asking for advice, the response of which enlightened and benefited him, me and hopefully others also. Thank you both and I will also request @PlanetMaster
to publish a tutorial on how to make a website secure - what server-side features are must and why
. I think alike @BattleKing
that it will help many members here.