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Alza.sk Alza.sk - najväčší obchod s počítačmi a elektronikou | Alza.sk

Najväčší obchod s počítačmi a elektronikou ✓ 12 predajní, 11 AlzaBoxov a veľký showroom v Bratislave ✓ PC zostavy, notebooky, mobily, monitory...

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Online Status
Online

Server IP address resolved: Yes
Http response code: 200
Response time: 3.47 sec.
Last Checked: 08/07/2019

Alza.sk receives about twenty thousand unique visitors and eighty thousand pageviews per day. The estimated value of alza.sk is one million USD. Each unique visitor makes about 5.54 pageviews on average.

Over the time alza.sk has been ranked as high as 3,844 in the world, while most of its traffic comes from Slovakia, where it reached as high as 20 position.

We recommend moving alza.sk server from Czech Republic to Slovakia, as it will speed up alza.sk page load time for the majority of their users.

At the time of the last check (July 05, 2019) alza.sk has a valid and up-to-date wildcard SSL certificate that expires on May 30, 2021.

According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust alza.sk is quite a safe domain.

Mobile-Friendly test indicates that alza.sk is well optimized for mobile and tablet devices, however website page loading time could be improved.

Global Rank
7,788
Average Load Time
1.59sec
Links In Count
191
Website Value
$1.1 M
Overview
Last Updated: 08/24/2019
Overall result - "alza.sk" is SAFE.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
Norton Connect Safe
Last Updated: 01/12/2019
NCS "alza.sk" OK.

Norton ConnectSafe evaluates alza.sk for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search
Last Updated: 10/11/2016
GSS "alza.sk" OK.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing
Last Updated: 01/09/2019
Malware not found at "alza.sk".
"alza.sk" is not a phishing page.
"alza.sk" does not install unwanted software.
"alza.sk" does not contain harmfull applications.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
Site Advisor
Last Updated: 01/09/2019
SA "alza.sk" OK.

McAfee assesses alza.sk for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze alza.sk for mature or inappropriate content, only security checks are evaluated.

Web of Trust
Last Updated: 01/09/2019
WOT "alza.sk" VERY GOOD.

The WOT calculates reputation of the alza.sk. This reputation system receives ratings from users and information from third-party sources, assesses the alza.sk for safety features and confirms, whether alza.sk is suitable for children.

SSL Information
Domain *.alza.sk
Issuer GeoTrust TLS RSA CA G1
Algorithm RSA-SHA256
Valid form 04/02/2019
Expiration 05/30/2021
Signed Certificate is not self signed
Additional Domains *.alza.sk
alza.sk
Server Location
Hlavni mesto
Praha
Czech Republic
ASN Information

ASN ID: 206591
ASN Title: Alza.cz a.s.

Last Update: 05/30/2019

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf

% Note: this output has been filtered.
% To receive output for a database update, use the "-B" flag.

% Information related to 'AS196608 - AS207259'

as-block: AS196608 - AS207259
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by: RIPE-NCC-HM-MNT
created: 2016-09-08T07:26:53Z
last-modified: 2016-09-08T07:26:53Z
source: RIPE

% Information related to 'AS206591'

% Abuse contact for 'AS206591' is 'abuse@alza.cz'

aut-num: AS206591
as-name: ALZACZ-AS
org: ORG-AA1675-RIPE
import: from AS29208 accept ANY
export: to AS29208 announce AS206591
import: from AS21430 accept ANY
export: to AS21430 announce AS206591
import: from AS199803 accept ANY
export: to AS199803 announce AS206591
admin-c: ALZA2-RIPE
tech-c: ALZA2-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: ALZACZ-RIPE-MNT
mnt-routes: ALZACZ-RIPE-MNT
created: 2016-12-14T14:54:47Z
last-modified: 2017-11-15T12:40:22Z
source: RIPE

organisation: ORG-AA1675-RIPE
org-name: Alza.cz a.s.
org-type: LIR
address: Jatecni 33a
address: 17000
address: Praha
address: CZECH REPUBLIC
admin-c: MU1849-RIPE
tech-c: MU1849-RIPE
abuse-c: AR38620-RIPE
mnt-by: RIPE-NCC-HM-MNT
mnt-by: ALZACZ-RIPE-MNT
created: 2016-12-09T08:27:52Z
last-modified: 2016-12-11T09:23:28Z
source: RIPE # Filtered
phone: +420225340111
mnt-ref: ALZACZ-RIPE-MNT

role: Alza.cz Hostmaster Role
address: Jatecni 33a
address: Praha 7
address: 170 00
address: Czech Republic
nic-hdl: ALZA2-RIPE
mnt-by: ALZACZ-RIPE-MNT
created: 2016-12-11T09:47:03Z
last-modified: 2016-12-11T09:47:03Z
source: RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.91.2 (WAGYU)

HTML Metatags
Title
Alza.sk - najväčší obchod s počítačmi a elektronikou | Alza.sk
The title has an optimal length. Search engines typically displays the first 50–70 characters of a title tag. If you keep your titles under 70 characters, our research suggests that you can expect about 90% of your titles to display properly.
Description
Najväčší obchod s počítačmi a elektronikou ✓ 12 predajní, 11 AlzaBoxov a veľký showroom v Bratislave ✓ PC zostavy, notebooky, mobily, monitory...
The description has optimal length. Keep in mind that the "optimal" length will vary depending on the situation, and your primary goal should be to provide value and drive clicks.
Encoding
UTF-8
You should always specify the encoding used for an HTML page. If you don't, you risk that characters in your content are incorrectly interpreted. This is not just an issue of human readability, increasingly machines need to understand your data too.
Language
sk Slovak
Identifying the language of your content allows you to automatically do a number of things, from changing the look and behavior of a page, to assisting search engines in extracting information. If part of the page uses text in a different language, you can add a language attribute with a different value to the element that surrounds that content.
Language Region
Slovakia
Images
Attribute ALT
Line 208, ...<img data-src="https://cdn.alza.sk/Foto/ImgGalery/bannery/1227_39...
Line 211, ...<img data-src="https://cdn.alza.sk/Foto/ImgGalery/bannery/1109_38...
Line 514, ...<img alt="" src="/img/blank.gif" style="width: 120px; height: 58p...
Line 524, ...<img alt="" src="/img/blank.gif" style="width: 120px; height: 42p...
Line 524, ...<img alt="" src="/img/blank.gif" style="width: 160px; height: 39p...
Line 524, ...<img alt="" src="/img/blank.gif" style="width: 120px; height: 39p...
Line 524, ...<img alt="" src="/img/blank.gif" style="width: 120px; height: 32p...
Line 545, ...<img data-src="https://cdn.alza.sk/Foto/ImgGalery/Image/Article/g...
Line 658, ...<img style="margin-left: -10px;" src="/img/blank.gif" class=" laz...
Line 695, ...<img id="fcat18855744" data-srcset="https://cdn.alza.sk/Foto/cate...
Line 723, ...<img id="fcat18855843" data-srcset="https://cdn.alza.sk/Foto/ImgG...
Line 781, ...<img id="fcat18855760" data-srcset="https://cdn.alza.sk/Foto/cate...
Line 843, ...<img id="fcat18855068" data-srcset="https://cdn.alza.sk/Foto/ImgG...
Line 889, ...<img id="fcat18855195" data-srcset="https://cdn.alza.sk/Foto/cate...
Line 947, ...<img id="fcat18860900" data-srcset="https://cdn.alza.sk/Foto/cate...

182 items are hidden.
Full results are available for registered users only.
As a general rule, search engines do not interpret the content of image files. The text provided in the <img alt> attribute enables the site owner to provide relevant information to the search engine and to the end user.
H1-H6 Tags Information

For search engines, <H> tags helps understand the structure of the text on a page better. For users, headings are like anchors in a wall of text, navigating them through the page and making it easier to digest. The <h1> tag reinforces the core keyword(s) found in the <title>, <description>, and the <body>. We recommend that the <h1> tag includes keywords that reflect the contents of the page and that it is not longer than 150 characters in length, but don’t overuse the tags and the keywords in them. Keep it readable for users.

H1
1 H1 tag(s).
Your H1 introduces the topic your page is all about, just as a title tells a reader what a book is all about.
H2
4 H2 tag(s).
The H2s are akin to book chapters, describing the main topics you’ll cover in sections of the article.
H3
Subsequent headers, H3s to H6s, serve as additional sub-headings within each section, just as a book chapter may be split up by multiple sub-topics.
H4
H5
H6
Iframes Information
iFrame
Line 10734, ...<iframe src="//www.googletagmanager.com/ns.html?id=GTM-NM8P6Z" he...
Since search engines consider the content in iframes to belong to another website, the best you can hope for is no effect on SEO. Iframes tend to neither help nor hurt your search engine ranking. For this reason, it’s best to refrain from using iframes on main pages that you want to rank high in search engine results. Instead, fill high-priority pages with useful, unique content and save iframes for other pages.
Code To Text Ratio
Code To Text Ratio
4.29 %
A good code to text ratio is anywhere from 25 to 70 percent. This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information. This has become especially apparent since search engines, such as Google, released the Panda update which placed importance on content-driven sites.
Favicons

Favicons are the little piece of graphic that represents your brand on browser tabs, bookmark lists, search history, search ads and even search results. These files are placed in a file called favicon.ico and placed in the root directory of a website. There are no direct SEO effects of having favicons. However, there may be indirect benefits such as increased usability of site and bookmarks. It makes your website look more professional and help a users to remember your site while browsing through multiple URLs. If you want to get mentioned benefits you have to specify icons for different web browsers and sometimes even for different mobiles.

Default Favicon
Line 15, /favicon-alza.ico
Backup icon for most desktop browsers (if no icon of the right size is found). Tag format <link rel="shortcut icon" href="path-to-16x16-icon.ico" type="image/x-icon" />
16x16 Optional Favicon
Standard icon for outdated browsers or small resolution hand held devices. Tag format <link rel="icon" type="image/png" sizes="16x16" href="path-to-16x16.png">
32x32 Optional Favicon
Standard for most desktop browsers. Tag format <link rel="icon" sizes="32x32" href="path-to-32x32.png">
96x96 Optional Favicon
Mostly used as GoogleTV icon. Tag format <link rel="icon" type="image/png" sizes="96x96" href="path-to-96x96.png">
Default Apple Icon
Line 16, Images/apple-touch-icon.png
Backup icon for apple devices (if no icon of the right size is found). Preferrable size 60x60. Tag format <link rel="apple-touch-icon" sizes="72x72" href="path-to-small-icon.png">
180x180 Apple Icon
iPhone 6 plus icons. Tag format <link rel="apple-touch-icon" sizes="180x180" href="path-to-180x180.png">
152x152 Apple Icon
iPad, iPad mini icons. Tag format <link rel="apple-touch-icon" sizes="152x152" href="path-to-icon-152x152.png">
167x167 Apple Icon
iPad Pro icon. Tag format <link rel="apple-touch-icon" sizes="167x167" href="path-to-167x167.png">
Robots.txt Information

Robots.txt is a text file that website owners can create to tell search engine bots how to crawl and index pages on their site.

Robots File
Robots File Loaded successfully (/robots.txt)
You can have multiple lines of instructions to allow or disallow specific URLs and add multiple sitemaps. If you do not disallow a URL, then search engine bots assume that they are allowed to crawl it.
Disallow
10 record(s)
Other User-Agent
Not found
Default User-Agent
1 record(s)
Sitemap

A sitemap is an XML file where is provided information about each URL: when it was last updated, how often it changes, and how important it is in relation to other URLs in the site. Search engines crawling bots read this file to more efficiently and intelligently crawl your site and to find URLs that may be isolated from rest of the site's content.

Default Sitemap
Sitemap File failed Loaded (/sitemap.xml)
Your site will benefit from having a sitemap.
WHOIS

Domain: alza.sk
Registrant: A24C-12658
Admin Contact: A24C-12658
Tech Contact: ACTI-0024
Registrar: ACTI-0024
Created: 2004-05-21
Updated: 2018-06-25
Valid Until: 2019-04-24
Nameserver: alfa.ns.active24.cz
Nameserver: beta.ns.active24.cz
Nameserver: gama.ns.active24.sk
EPP Status: ok

Registrar: ACTI-0024
Name: ACTIVE 24, s.r.o.
Organization: ACTIVE 24, s.r.o.
Organization ID: 25115804
Phone: +421.244460639
Email: reg@domeny.sk
Street: Sokolovská 394/17
City: Praha
Postal Code: 18600
Country Code: CZ
Created: 2017-09-14
Updated: 2018-11-08

Contact: A24C-12658
Name: L.S. Investments Limited
Organization: L.S. Investments Limited
Organization ID: HE197294
Street: 20 Spyrou Kyprianou Av., 1st Floor
City: Nicosia
Postal Code: 1075
Country Code: CY
Registrar: ACTI-0024
Created: 2018-02-13
Updated: 2018-02-13

DNS Records
HostA RecordTTL
alza.sk185.181.176.19300
HostMX RecordPriorityTTL
alza.skalza-sk.mail.protection.outlook.com0300
HostNS RecordTTL
alza.skalfa.ns.active24.cz86400
alza.skbeta.ns.active24.cz86400
alza.skgama.ns.active24.sk86400
HostTXT RecordTTL
alza.skMS=ms46116524300
alza.skv=spf1 include:spf.alza.cz include:spf.protection.outlook.com -all300
alza.skTyKuVC6sSB8xZdwgHvqjjAuXsMf0exPMZBhVsDX8KQWv+5av47bPCSCMb0gS2t6bMDsr5Gd5jr+H/tKP4Udb5Q==300

alfa.ns.active24.cz
TTL: 86400
Email address: hostmaster.active24.cz
Serial: 2019021502
Refresh: 10800
Retry: 1800
Expire: 1209600
Minimum: 3600

Errors
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Line: 6 Column: 251 - 288
"...vér..." /><meta id="keywords" name="keywords" /><meta ..."
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"...sk.jpg" /><meta http-equiv="x-xrds-location" content="https://www.alza.sk/Apps/Xrds.ashx" /><link ..."
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"...y"> <div> <style type="text/css">.notif..."
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Line: 200 Column: 182 - 344
"...et="_top"><img src='/img/blank.gif' alt='Vianočný BLACK FRIDAY' align='middle' class=" lazy" data-src="https://i.alza.sk/Foto/ImgGalery/bannery/leaderboard/810/26365_1.jpg"></a></..."
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"...ie </div> <input class="textbox" placeholder="Vyplňte váš e-mail" maxlength="80" validation-type="email" validation-required="true" alzaformationtype="email" type="text" /> <a cl..."
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"...ie </div> <input class="textbox" placeholder="Vyplňte váš e-mail" maxlength="80" validation-type="email" validation-required="true" alzaformationtype="email" type="text" /> <a cl..."
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"...l: </div> <input class="login textbox" id="i_name" name="login" validation-required="true" validation-message-only-on-focus="false" alzaformationtype="email" type="text" /> </div..."
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"...o: </div> <input class="password textbox" id="i_psw" name="password" validation-required="true" type="password" /> </div..."
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"...ie </div> <input class="textbox" placeholder="Vyplňte váš e-mail" maxlength="80" validation-type="email" validation-required="true" alzaformationtype="email" type="text" /> <a cl..."
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"...l: </div> <input class="login textbox" id="i_name" name="login" validation-required="true" validation-message-only-on-focus="false" alzaformationtype="email" type="text" /> </div..."
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"...ss='item'><div class="box boxitem carouselTitlePageItem" data-id="5118750"> <div ..."
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"...ss='item'><div class="box boxitem carouselTitlePageItem" data-id="5154294"> <div ..."
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"...nguages"> <div class="shipto"> </div..."
Line: 5238 Column: 1 - 43
"..."> </div> <div class="langSK SK" id="languageSwitch"> <div ..."
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"...> </span> <div class="clear"></div>..."
Line: 505 Column: 178 - 183
"...2' r='20'></svg></span..."
Line: 527 Column: 25 - 179
"...k-friday"><img style="margin-left: -10px;" src="/img/blank.gif" class=" lazy" data-src="https://img.alza.cz/Foto/imggalery/Image//Article/banner_plachta_BFR_SK.jpg"></a> <..."
Line: 662 Column: 45 - 213
"...1978.htm"><img style="margin-bottom: -22px; margin-left: 3px;" src="/img/blank.gif" class=" lazy" data-src="https://i.alza.sk/Foto/ImgGalery/Image/kategorie-elektromobilita_.png"></a> <..."
Line: 950 Column: 42 - 195
"...5733.htm"><img style="margin-bottom: -22px; margin-left: 3px;" src="/img/blank.gif" class=" lazy" data-src="https://i.alza.sk/Foto/ImgGalery/Image/patro-v3-sk.png"></a> <..."
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"...978.htm"> <img id="fcat18861978" src="" alt="" /> </a> ..."
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"...317.htm"> <img id="fcat18862317" src="" alt="" /> </a> ..."
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157 items are hidden.
Full results are available for registered users only.
Line: 5340 Column: 1 - 162
"...l: </div> <input class="login textbox" id="i_name" name="login" validation-required="true" validation-message-only-on-focus="false" alzaformationtype="email" type="text" /> </div..."
Line: 5386 Column: 86 - 130
"...;</script><script type='text/javascript' async='async'>ga('cr..."
Line: 5386 Column: 482 - 526
"...;</script><script type='text/javascript' async='async'>ga('cr..."
Line: 104 Column: 1 - 20
"..." /> </a> <h1 itemprop="name"> Alza...."

Last tested: 05/17/2017

Desktop
Desktop Speed
80%
Your page has 3 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.Remove render-blocking JavaScript:

https://i.alza.cz/Scripts/loadCSSScript-2bfed1e36a…e3420945e0d9002cd8c.js
https://i.alza.cz/Scripts/critical-b05d0369e9ea900…4e6a7fef8fb4b665e47.js
https://www.alza.sk/Scripts/lang-SK-1161619848.js

Optimize CSS Delivery of the following:

https://i.alza.cz/Styles/global-full-a4f477599a691…0e782bc72a845dd409.css
https://i.alza.cz/Styles/defaultPage-full-0712555c…3a5e75bbc3fba391a5.css

Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 47KiB (34% reduction).

Compressing https://i.alza.cz/Foto/ImgGalery/bannery/leaderboard/810/20104.jpg could save 20.4KiB (40% reduction).
Compressing https://i.alza.cz/Foto/ImgGalery/bannery/leaderboard/810/19359_2.jpg could save 19.8KiB (38% reduction).
Compressing https://i.alza.cz/Styles/full/images/vypredane-vypis.png could save 2.8KiB (31% reduction).
Compressing https://i.alza.cz/Foto/ImgGalery/st-alzapremium.png could save 1.7KiB (14% reduction).
Compressing https://i.alza.cz/Styles/full/images/sprites/loginBtns.png could save 1.6KiB (17% reduction).
Compressing https://i.alza.cz/Foto/f8/TR/TRE011b.jpg could save 750B (11% reduction).

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:

https://nexus-websocket-a.intercom.io/client-test (expiration not specified)
https://nexus-websocket-b.intercom.io/client-test (expiration not specified)
https://www.alza.sk/Services/EShopService.svc/GetDialogHtml (expiration not specified)
https://www.alza.sk/Services/EShopService.svc/GetPopUpDialog (expiration not specified)
https://www.alza.sk/Services/EShopService.svc/GetRegistrationDialog (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-NM8P6Z (15 minutes)
https://connect.facebook.net/sk_SK/all.js (20 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.alza.sk/Scripts/lang-SK-1161619848.js (4 days)

Desktop Resource Breakdown
Total Resources84
Number of Hosts19
Static Resources58
JavaScript Resources17
CSS Resources5

Last tested: 05/17/2017

Mobile
Mobile Usability
99%
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="/" class="sel">Alza</a> is close to 1 other tap targets final.

Mobile Speed
46%
Your page has 2 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.Remove render-blocking JavaScript:

https://i.alza.cz/Scripts/default-mobile-c5ed426dd…6adcf8f7fe7f79691aa.js
https://i.alza.cz/Scripts/defaultPage-mobile-bc4ab…cbbb19b38827c26c047.js

Optimize CSS Delivery of the following:

https://i.alza.cz/Styles/global-mobile-b245c612b2d…10ffaf1925afb3dd8d.css
https://i.alza.cz/Styles/other-mobile-b35ac0f5fea6…edd4526eaa2dbeaaff.css

Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.

http://alza.sk/
https://www.alza.sk/
http://m.alza.sk/default.aspx
https://m.alza.sk/default.aspx

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 57% of the final above-the-fold content could be rendered with the full HTML response snapshot:4.

Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 26KiB (41% reduction).

Compressing https://i.alza.cz/Foto/ImgGalery/bannery/leaderboard/414/20104.jpg could save 8.8KiB (42% reduction).
Compressing https://i.alza.cz/Foto/ImgGalery/bannery/leaderboard/414/19359_2.jpg could save 8.7KiB (39% reduction).
Compressing https://i.alza.cz/Foto/ImgGalery/bannery/leaderboard/414/20246_2.jpg could save 8.4KiB (42% reduction).

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:

https://www.googletagmanager.com/gtm.js?id=GTM-NM8P6Z (15 minutes)
https://connect.facebook.net/sk_SK/all.js (20 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://m.alza.sk/Scripts/lang-SK-213877807.js (4 days)

Mobile Resource Breakdown
Total Resources37
Number of Hosts14
Static Resources20
JavaScript Resources7
CSS Resources2
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