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Result:

http://akhet.ru/
Array
(
    [server] => nginx/1.20.2
    [date] => Fri, 29 Sep 2023 19:22:36 GMT
    [content-type] => text/html; charset=iso-8859-1
    [transfer-encoding] => chunked
    [connection] => keep-alive
)
Array
(
    [url] => http://akhet.ru/
    [content_type] => text/html; charset=iso-8859-1
    [http_code] => 403
    [header_size] => 182
    [request_size] => 110
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 0.134144
    [namelookup_time] => 0.124975
    [connect_time] => 0.128669
    [pretransfer_time] => 0.128711
    [size_upload] => 0
    [size_download] => 202
    [speed_download] => 1507
    [speed_upload] => 0
    [download_content_length] => -1
    [upload_content_length] => -1
    [starttransfer_time] => 0.133983
    [redirect_time] => 0
    [redirect_url] => 
    [primary_ip] => 49.12.73.44
    [certinfo] => Array
        (
        )

    [primary_port] => 80
    [local_ip] => 78.47.42.177
    [local_port] => 58820
    [http_version] => 2
    [protocol] => 1
    [ssl_verifyresult] => 0
    [scheme] => HTTP
)
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>403 Forbidden</title>
</head><body>
<h1>Forbidden</h1>
<p>You don't have permission to access /
on this server.</p>
</body></html>
http://akhet.ru/
Array
(
    [server] => nginx/1.20.2
    [date] => Fri, 29 Sep 2023 19:22:36 GMT
    [content-type] => text/html; charset=iso-8859-1
    [transfer-encoding] => chunked
    [connection] => keep-alive
)
Array
(
    [url] => http://akhet.ru/
    [content_type] => text/html; charset=iso-8859-1
    [http_code] => 403
    [header_size] => 182
    [request_size] => 207
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 0.008023
    [namelookup_time] => 2.1E-5
    [connect_time] => 0.00277
    [pretransfer_time] => 0.002808
    [size_upload] => 0
    [size_download] => 202
    [speed_download] => 25250
    [speed_upload] => 0
    [download_content_length] => -1
    [upload_content_length] => -1
    [starttransfer_time] => 0.007953
    [redirect_time] => 0
    [redirect_url] => 
    [primary_ip] => 49.12.73.44
    [certinfo] => Array
        (
        )

    [primary_port] => 80
    [local_ip] => 78.47.42.177
    [local_port] => 58822
    [http_version] => 2
    [protocol] => 1
    [ssl_verifyresult] => 0
    [scheme] => HTTP
)
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>403 Forbidden</title>
</head><body>
<h1>Forbidden</h1>
<p>You don't have permission to access /
on this server.</p>
</body></html>

Fatal error: Uncaught Embed\Exceptions\InvalidUrlException: Invalid url 'http://akhet.ru/' (Status code 403) in /var/www/oscarotero.com/www/embed3/src/Embed.php:142 Stack trace: #0 /var/www/oscarotero.com/www/embed3/src/Embed.php(81): Embed\Embed::process() #1 /var/www/oscarotero.com/www/embed3/demo/index.php(216): Embed\Embed::create() #2 {main} thrown in /var/www/oscarotero.com/www/embed3/src/Embed.php on line 142