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Top Technologies

Google Font API
Font Scripts
WordPress
CMS
CloudFlare
CDN
Font Awesome
Font Scripts
Nginx
Web Servers
Apache
Web Servers
Twitter Bootstrap
Web Frameworks
LiteSpeed
Web Servers

23 smartacus.rs Last Updated: 1 month

Success 70% of passed verification steps
Warning 15% of total warning
Errors 15% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 82%
Best Practices Desktop Score 93%
SEO Desktop Score 100%
Progressive Web App Desktop Score 56%
Performance Mobile Score 35%
Best Practices Mobile Score 93%
SEO Mobile Score 100%
Progressive Web App Mobile Score 57%
Page Authority Authority 20%
Domain Authority Domain Authority 16%
Moz Rank 2.0/10
Bounce Rate Rate 0%
charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 47 Characters
MENTALNA ARITMETIKA | SMART, SMARTER, SMARTACUS
Meta Description 138 Characters
Smartacus obrazovni centar je prva škola mentalne aritmetike u Beogradu, pionir u edukaciji i popularizaciji mentalne aritmetike u Srbiji.
Effective URL 20 Characters
https://smartacus.rs
Excerpt Page content
MENTALNA ARITMETIKA | Smart, Smarter, SMARTACUS Smartacus – Vračar Hadzi Prodanova 18/4 066/100-201Smartacus – Novi Beograd Bulevar Arsenija Čarnojevića 54a 066/100-210Smartacus – Dedinje Tolstojeva 58 063/430-163 PočetnaO nam...
Keywords Cloud Density
mentalne40 aritmetike39 mentalna23 aritmetika23 koji21 razvoj21 dece20 smartacus19 program13 deteta12
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
mentalne 40
aritmetike 39
mentalna 23
aritmetika 23
koji 21
razvoj 21
dece 20
smartacus 19
program 13
deteta 12
Google Preview Your look like this in google search result
MENTALNA ARITMETIKA | SMART, SMARTER, SMARTACUS
https://smartacus.rs
Smartacus obrazovni centar je prva škola mentalne aritmetike u Beogradu, pionir u edukaciji i popularizaciji mentalne aritmetike u Srbiji.
Robots.txt File Detected
Sitemap.xml File Detected
Whois Is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system
Updated: 1970-01-01 / 51 years
Create on: 1970-01-01 / 51 years
Expires on: 2021-05-21 / 2 months 24 days

Serbia Broadband - Srpske kablovske mreže ,
Registrar Address: Hadži Prodanova 18, Beograd, Serbia Hadži Prodanova 18, Beograd, Serbia Bulevar Peka Dapčevića 19, Beograd, Serbia ,

Nameservers
ns1.cpanelhosting.rs
-
94.127.7.132
ns2.cpanelhosting.rs
-
94.127.4.5
ns3.cpanelhosting.rs
-
94.127.5.6
Page Size Code & Text Ratio
Document Size: ~132.47 KB
Code Size: ~98.78 KB
Text Size: ~33.69 KB Ratio: 25.43%

Estimation Traffic and Earnings

0
Unique Visits
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Daily
$0
Income
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0
Unique Visits
Monthly
0
Pages Views
Monthly
$0
Income
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0
Unique Visits
Yearly
0
Pages Views
Yearly
$0
Income
Yearly

Technologies

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PWA - Manifest

Manifest is not valid
Your site don't have valid manifest.json, read more in Web App Manifest

Desktop

Desktop Screenshot
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Avoids large JavaScript libraries with smaller alternatives 0 large libraries found
Large JavaScript libraries can lead to poor performance. Prefer smaller, functionally equivalent libraries to reduce your bundle size
Serve static assets with an efficient cache policy 41 resources found
A long cache lifetime can speed up repeat visits to your page
Cumulative Layout Shift 0.036
Cumulative Layout Shift measures the movement of visible elements within the viewport
Estimated Input Latency 10 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
Speed Index 1.8 s
Speed Index shows how quickly the contents of a page are visibly populated
First Meaningful Paint 0.9 s
First Meaningful Paint measures when the primary content of a page is visible
Efficiently encode images Potential savings of 6 KiB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 0 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Remove unused JavaScript Potential savings of 182 KiB
Remove unused JavaScript to reduce bytes consumed by network activity
Avoids enormous network payloads Total size was 1,344 KiB
Large network payloads cost users real money and are highly correlated with long load times
First Contentful Paint 0.6 s
First Contentful Paint marks the time at which the first text or image is painted
Largest Contentful Paint 2.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Time to Interactive 2.3 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Properly size images Potential savings of 39 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Serve images in next-gen formats Potential savings of 10 KiB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Keep request counts low and transfer sizes small 52 requests • 1,344 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Minimizes main-thread work 1.3 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Total Blocking Time 30 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Defer offscreen images Potential savings of 13 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Eliminate render-blocking resources Potential savings of 290 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
First CPU Idle 1.3 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle/).
Includes front-end JavaScript libraries with known security vulnerabilities 4 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid long main-thread tasks 2 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Initial server response time was short Root document took 130 ms
Keep the server response time for the main document short because all other requests depend on it
Avoid chaining critical requests 9 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Avoid an excessive DOM size 1,173 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Remove unused CSS Potential savings of 197 KiB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Preload key requests Potential savings of 630 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
Avoid large layout shifts 1 element found
These DOM elements contribute most to the CLS of the page.
JavaScript execution time 0.4 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Max Potential First Input Delay 120 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance

Mobile

Mobile Screenshot
Avoids enormous network payloads Total size was 1,332 KiB
Large network payloads cost users real money and are highly correlated with long load times
Total Blocking Time 720 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Keep request counts low and transfer sizes small 51 requests • 1,332 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Includes front-end JavaScript libraries with known security vulnerabilities 4 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Defer offscreen images Potential savings of 78 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Max Potential First Input Delay 680 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Eliminate render-blocking resources Potential savings of 2,480 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
First Meaningful Paint 3.5 s
First Meaningful Paint measures when the primary content of a page is visible
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Minimize main-thread work 7.5 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Tap targets are sized appropriately 100% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements
Time to Interactive 9.4 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Cumulative Layout Shift 0.041
Cumulative Layout Shift measures the movement of visible elements within the viewport
Avoid an excessive DOM size 1,193 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Avoid long main-thread tasks 20 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Reduce JavaScript execution time 2.4 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Avoid large layout shifts 2 elements found
These DOM elements contribute most to the CLS of the page.
Serve static assets with an efficient cache policy 40 resources found
A long cache lifetime can speed up repeat visits to your page
Remove unused CSS Potential savings of 197 KiB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Minimize third-party usage Third-party code blocked the main thread for 40 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
First CPU Idle 7.0 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle/).
First Contentful Paint 3.5 s
First Contentful Paint marks the time at which the first text or image is painted
Largest Contentful Paint 9.2 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Avoid chaining critical requests 9 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Document uses legible font sizes 100% legible text
Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px
First Contentful Paint (3G) 7110 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Avoids large JavaScript libraries with smaller alternatives 0 large libraries found
Large JavaScript libraries can lead to poor performance. Prefer smaller, functionally equivalent libraries to reduce your bundle size
Estimated Input Latency 180 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
Preload key requests Potential savings of 3,330 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
Speed Index 6.5 s
Speed Index shows how quickly the contents of a page are visibly populated
Initial server response time was short Root document took 130 ms
Keep the server response time for the main document short because all other requests depend on it
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Remove unused JavaScript Potential savings of 182 KiB
Remove unused JavaScript to reduce bytes consumed by network activity

Speed And Optimization Tips

Website speed has a huge impact on performance, affecting user experience, conversion rates and even rankings. ‪‬‬By reducing page load-times, users are less likely to get distracted and the search engines are more likely to reward you by ranking you
Title Website
Congratulations! Your title is optimized
Description Website
Congratulations! Your description is optimized
Robots.txt
Congratulations! Your site have a robots.txt file
Sitemap.xml
Congratulations! We've found a sitemap file for your website
SSL Secure
Congratulations! Your site have Support to HTTPS
Headings
Congratulations! You are using your H1 and H2 tags in your site
Blacklist
Congratulations! Your site is not listed in a blacklist
W3C Validator
Warning! Your site have errors W3C
Accelerated Mobile Pages (AMP)
Warning! Your site not have AMP Version
Domain Authority
Warning! Domain Authority of your website is slow. It is good to have domain authority more than 25.
GZIP Compress
Warning! Your site not is compressed, this can make slower response for the visitors
Favicon
Congratulations! Your website appears to have a favicon.

Alexa Rank

0

Local Rank: / Users: / PageViews:

Global Rank

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/2 200 
date: Thu, 21 Jan 2021 16:59:14 GMT
server: Apache
wpo-cache-status: not cached
wpo-cache-message: The request method was not GET (HEAD)
link: ; rel="https://api.w.org/", ; rel="alternate"; type="application/json", ; rel=shortlink
cache-control: private, must-revalidate
expires: Thu, 18 Feb 2021 16:59:14 GMT
vary: User-Agent
content-type: text/html; charset=UTF-8
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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