my site language problem

bangla language not show my website pls solve this problem. pls

What does that mean?
URL?

my wepsite language text not show… you check out this link ;http://instantads.cf/

my wepsite language text not show… you check out this link ;http://instantads.cf/

you did not declared the charset

put this code right after the <head> tag

<meta charset="utf-8">

example

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Instant Ads Service </title>

why right after the <head> tag ?

the charset declaration should fit completely within the first 1024 bytes at the start of the file, so it’s best to put it immediately after the opening head tag.

I have seen several times in this forum that people at the beginning of the file put a large number of html comments like:

<!DOCTYPE html>
<!-- this is copyright from this and that, 
I forbid this and that,
I'm owner of XY,
and 15 rows more down(separator/blank space is also characters),
plus some ascii picture in an additional 5+ lines


???????   ??????????????????   ??????????????????   ?????????????????? ????????????????   ????   ????????????????????
????????  ???????????????????  ??????????????????? ????????????????????????????????????   ?????  ????????????????????
????????? ?????????  ????????? ??????   ???    ??????? ??????  ??????????????  ??????     ?????? ?????????     ???   
???????????????????  ????????????????   ???     ?????  ??????  ??????????????  ??????     ????????????????     ???   
?????? ?????????     ?????? ?????????   ???      ???   ???     ???  ????????????????????????? ??????????????   ???   
??????  ????????     ??????  ????????   ???      ???   ???     ???  ?????????????????????????  ?????????????   ???   
                                                                                                                     
-->
<html lang="en">
<head>

and then complain that the browser does not display the website adequately