Lessons
-
Introduction
-
SEO
- Snippet's clickability in search engines
-
Indexing
-
Headings H1-H6
Images have the "alt" attribute.
The Title attribute of links
Content robots.txt
Duplicate "title"
Duplicate "description"
Human-understandable name of the picture
Rules for formatting text on a page
Micro-markup format requirements and recommendations
Validation microdata Google
Human-friendly link format
Errors in Robots.txt
The content of the site map
The site map file
Link formatting requirements
Hreflang tag
"canonical" tag
Spelling of interactive interface elements
-
Speed
-
Reduce the number of network requests
-
An overabundance of small pictures
Grouping CSS files
Grouping JavaScript files
An overabundance of font files
Redirects when uploading files
Availability of end-to-end CSS, JS files
Uploading duplicate files
Using JavaScript facades
Redirecting JavaScript code
Redirect from/to www version
Using sprite technology
The video player is connected correctly
- General assessment
-
Configure the server
-
304 response code when checking the operation of caching
ETag header for caching operation
The "Expires" header for caching to work
Server GZip compression function
Title "Keep alive"
Using the modern HTTP2 protocol to speed up the site
- Speed up the display of the first content
-
Reduce the size of graphic files
-
Minification of the embedded JavaScript code of the page
Minification of the embedded CSS code of the page
Minification of images without loss of quality
The total size of all images on the page
Font Optimization
An overabundance of monochrome icons
The presence of a monochrome font
Data optimization:Image URLs
Animated image format MP4, WEBM, SVG instead of GIF and WEBP
Cropping monophonic fields in images
Using the WebP format in images
Too high-quality images without using compression
Suitable video bitrate
Excessively large images
- Server performance
- Fix the locks
- Reduce the amount of code
-
Reduce the number of network requests
- Mobile adaptation
-
Software errors
- Code
- Mail operation
- Availability
- Server Settings
-
Convenience
- Text readability
- Interface
- Visual defects
- Interaction with other programs
- Image Favicon
-
Vulnerabilities
- Code
-
Server Settings
-
Uploading all page files via HTTPS
Strict-https header for increased security
Private access to service files
Encrypted IPv6 connection
Enabled error display in the north
SSL certificate validity
HTTPS Availability
Redirects to protected
Vulnerabilities of a secure SSL connection
HTTP headers for increased security
- Third-party services
Using the modern HTTP2 protocol to speed up the site
The HTTP2 protocol was published in 2015 and today has full support by all modern browsers. Its use speeds up the download by an average of 23%.
However, web servers like nginx and apache use an outdated version of HTTP1 by default.1. To enable HTTP2, you need to make the appropriate settings.
Article on configuring Nginx and Apache.
Demonstration of the difference in page loading time with and without using the HTTP2 protocol:
Demonstration
PHP code
HTML code
<?php
$mode = $_GET['mode'] ?? '';
?><!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
.product-grid {
display: grid;
grid-template-columns: 1fr 1fr 1fr 1fr;
font-size: 20px
}
.product-grid img {
width: 100%;
}
.product-grid .product {
position: relative;
}
.product-grid .time {
position: absolute;
left: 5px;
top: 5px;
background-color: #fff;
padding: 1px 4px;
}
.btn {
color: #000;
display: inline-block;
margin-bottom: 5px;
text-decoration: none;
padding: 5px 10px;
border: 1px solid #000;
border-radius: 5px;
}
.btn:hover {
background-color: #ddd;
}
.btn.active {
background-color: #000;
color: #fff;
}
</style>
<script>
// Функция, которая добавляет на изображение время окончания загрузки
function endLoading(el) {
var time = performance.now()/1000;
el.parentNode.insertAdjacentHTML("beforeend", '<div class="time">'+time+' с</div>');
}
window.addEventListener("load", (event) => {
document.querySelector('#page-load').innerHTML = 'Страница загрузилась (событие window.onload) за <b>'+(performance.now()/1000)+'с</b>.';
});
</script>
</head>
<body style="font-family: sans-serif;">
Режим: <a class="btn <?=$mode === '' ? 'active' : ''?>" href="./found.php">HTTP 2</a> <a class="btn <?=$mode === '1.1' ? 'active' : ''?>" href="./found.php?mode=1.1">HTTP 1.1</a>
<br />
<p>На странице 5.41 МБ изображений. При отложенной событие window.load отрабатывает сразу.</p>
<p id="page-load">Тут отобразится время загрузки страницы (вызова события window.onload)</p>
<div class="product-grid">
<?php for($i = 0; $i < 100;++$i) { ?>
<div class="product">
<img src="https://<?=isset($_GET['mode']) && $_GET['mode'] === '1.1' ? 'worker1.site-alarm.com/' : 'site-alarm.com/course-example/' ?>photo.jpg?t=<?=microtime(true)+$i?>" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<?php } ?>
</div>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
.product-grid {
display: grid;
grid-template-columns: 1fr 1fr 1fr 1fr;
font-size: 20px
}
.product-grid img {
width: 100%;
}
.product-grid .product {
position: relative;
}
.product-grid .time {
position: absolute;
left: 5px;
top: 5px;
background-color: #fff;
padding: 1px 4px;
}
.btn {
color: #000;
display: inline-block;
margin-bottom: 5px;
text-decoration: none;
padding: 5px 10px;
border: 1px solid #000;
border-radius: 5px;
}
.btn:hover {
background-color: #ddd;
}
.btn.active {
background-color: #000;
color: #fff;
}
</style>
<script>
// Функция, которая добавляет на изображение время окончания загрузки
function endLoading(el) {
var time = performance.now()/1000;
el.parentNode.insertAdjacentHTML("beforeend", '<div class="time">'+time+' с</div>');
}
window.addEventListener("load", (event) => {
document.querySelector('#page-load').innerHTML = 'Страница загрузилась (событие window.onload) за <b>'+(performance.now()/1000)+'с</b>.';
});
</script>
</head>
<body style="font-family: sans-serif;">
Режим: <a class="btn active" href="./found.php">HTTP 2</a> <a class="btn " href="./found.php?mode=1.1">HTTP 1.1</a>
<br />
<p>На странице 5.41 МБ изображений. При отложенной событие window.load отрабатывает сразу.</p>
<p id="page-load">Тут отобразится время загрузки страницы (вызова события window.onload)</p>
<div class="product-grid">
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852703.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852704.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852705.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852706.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852707.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852708.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852709.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852710.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852711.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852712.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852713.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852714.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852715.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852716.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852717.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852718.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852719.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852720.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852721.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852722.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852723.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852724.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852725.7068" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852726.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852727.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852728.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852729.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852730.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852731.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852732.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852733.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852734.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852735.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852736.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852737.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852738.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852739.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852740.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852741.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852742.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852743.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852744.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852745.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852746.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852747.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852748.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852749.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852750.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852751.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852752.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852753.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852754.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852755.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852756.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852757.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852758.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852759.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852760.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852761.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852762.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852763.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852764.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852765.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852766.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852767.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852768.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852769.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852770.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852771.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852772.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852773.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852774.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852775.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852776.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852777.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852778.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852779.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852780.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852781.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852782.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852783.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852784.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852785.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852786.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852787.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852788.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852789.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852790.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852791.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852792.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852793.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852794.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852795.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852796.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852797.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852798.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852799.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852800.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852801.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
<div class="product">
<img src="https://site-alarm.com/course-example/photo.jpg?t=1772852802.7069" onload="endLoading(this)" /><br />
Товар 1<br />
1000 руб.
</div>
</div>
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