Service for checking the availability of the site and content?

Question

Monitoring

Hello,
I need a service in which you can set the site address and a set of pages, the availability of which needs to be checked periodically and raised an alarm in case of problems. Let me explain: it happens that my blog is no longer available, and I only find out about it when I want to write an article. Or it was recently discovered that after a blog update, some of the pages became unavailable, i.е. 404 returned. I would like some kind of automatic machine so as not to check everything with my hands periodically.

Answer 1

Yandex.Metrica, in the settings, check the box "notify me when the site is unavailable"

Answer 2

I don’t really understand and know much, but is it possible to hang a script in cron that will check just errors
something like:

$pages = array();// откуда-то берем список для проверки
$domain = 'example.com';
$to = '[email protected]';
foreach($pages as $page){
  $url = 'http://'.$domain.'/'.$page;
  $ans = get_headers($url);
  $is_error = is_int( strpos($ans[0], array(40, 30, 50)) );
  if( !is_error ){
    $error = 'Недоступна страница '.$url."\n".'Ошибка: '.$ans[0];
    mail($to, 'Ошибка на сайте!', $error);
  }
}

Answer 3

Used for a very long time. I can't say anything bad. See if webopulsar.ru/

Answer 4

look at pingdom.com, there are a lot of opportunities there

Answer 5

Is there something like this for desktop?
You need the ability to log in to the site, and giving passwords to a third-party service is somehow not a hunt.
I understand that they can also be pulled from the desktop, but here it seems to be more reliable.

Answer 6

ping-admin.ru/serverstate.ru/
and
a couple dozen other similar services.