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Top Technologies

Nginx
Web Servers
Google Font API
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29 python.engineering Last Updated: 6 months

Success 47% of passed verification steps
Warning 23% of total warning
Errors 30% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 90%
Best Practices Desktop Score 92%
SEO Desktop Score 83%
PWA Desktop Score 67%
Performance Mobile Score 53%
Best Practices Mobile Score 92%
SEO Mobile Score 84%
PWA Mobile Score 70%
Page Authority Authority 4%
Domain Authority Domain Authority 1%
Moz Rank 0.4/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 85 Characters
THE BEST PYTHON PROGRAMMING BOOKS TO READ IN 2021. LEARN PYTHON AT PYTHON.ENGINEERING
Meta Description 152 Characters
The best Python programming books to read in 2021 — get the best Python ebooks for free. Machine Learning, Data ---ysis with Python books for beginners
Effective URL 26 Characters
https://python.engineering
Excerpt Page content
The best Python programming books to read in 2021. Learn Python at Python.Engineering ...
Keywords Cloud Density
python94 numpy68 news33 django31 data22 dummies11 method11 best10 array9 guide9
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
python 94
numpy 68
news 33
django 31
data 22
dummies 11
method 11
best 10
array 9
guide 9
Google Preview Your look like this in google search result
THE BEST PYTHON PROGRAMMING BOOKS TO READ IN 2021. LEARN PYT
https://python.engineering
The best Python programming books to read in 2021 — get the best Python ebooks for free. Machine Learning, Data ---ysis with Python books for beginne
Robots.txt File Detected
Sitemap.xml File No Found
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: 2020-06-12 / 2 years
Create on: 2020-06-07 / 2 years
Expires on: 2021-06-07 / 18 months 5 days

NameCheap, Inc. ,PA
Registrar Name: REDACTED FOR PRIVACY
Registrar Whois Server: whois.namecheap.com
Registrar URL: https://www.namecheap.com/
Registrar Phone: REDACTED
Registrar Email: Please
Registrar Address: REDACTED FOR PRIVACY , REDACTED FOR PRIVACY

REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Email: Please
Admin Phone: REDACTED
Admin Address: REDACTED FOR PRIVACY, REDACTED FOR PRIVACY

Nameservers
noah.ns.cloudflare.com
gabriella.ns.cloudflare.com
Page Size Code & Text Ratio
Document Size: ~106.93 KB
Code Size: ~58.99 KB
Text Size: ~47.94 KB Ratio: 44.83%

Social Data

Estimation Traffic and Earnings

8
Unique Visits
Daily
14
Pages Views
Daily
$0
Income
Daily
224
Unique Visits
Monthly
399
Pages Views
Monthly
$0
Income
Monthly
2,592
Unique Visits
Yearly
4,704
Pages Views
Yearly
$0
Income
Yearly

Technologies

PWA - Manifest



The web app manifest is a simple JSON file that gives you, the developer, the ability to control how your app appears to the user in areas where they would expect to see apps (for example, a mobile device's home screen)
Param name
Param short_name
Param theme_color
#ffffff
Param background_color
#ffffff
Param display
standalone
Manifest is not valid
Your manifest are missing some important params, 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
Avoid enormous network payloads Total size was 2,853 KiB
Large network payloads cost users real money and are highly correlated with long load times
Avoid serving legacy JavaScript to modern browsers Potential savings of 7 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers
Reduce unused JavaScript Potential savings of 224 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Avoid non-composited animations 14 animated elements found
Animations which are not composited can be janky and increase CLS
First Meaningful Paint 0.5 s
First Meaningful Paint measures when the primary content of a page is visible
Serve images in next-gen formats Potential savings of 389 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Speed Index 1.4 s
Speed Index shows how quickly the contents of a page are visibly populated
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Minimize third-party usage Third-party code blocked the main thread for 70 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
JavaScript execution time 0.9 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 0.3 s
First Contentful Paint marks the time at which the first text or image is painted
Largest Contentful Paint 1.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Keep request counts low and transfer sizes small 121 requests • 2,853 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Cumulative Layout Shift 0.13
Cumulative Layout Shift measures the movement of visible elements within the viewport
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
Time to Interactive 2.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Properly size images Potential savings of 1,162 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Serve static assets with an efficient cache policy 31 resources found
A long cache lifetime can speed up repeat visits to your page
Avoid chaining critical requests 4 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
Max Potential First Input Delay 140 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Initial server response time was short Root document took 110 ms
Keep the server response time for the main document short because all other requests depend on it
User Timing marks and measures 8 user timings
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences
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
Total Blocking Time 50 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Minimizes main-thread work 1.9 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 5 elements found
These DOM elements contribute most to the CLS of the page.
Avoid an excessive DOM size 1,094 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 duplicate modules in JavaScript bundles Potential savings of 13 KiB
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Mobile

Mobile Screenshot
Avoid long main-thread tasks 15 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Avoids enormous network payloads Total size was 2,167 KiB
Large network payloads cost users real money and are highly correlated with long load times
Avoid large layout shifts 5 elements found
These DOM elements contribute most to the CLS of the page.
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
Avoid serving legacy JavaScript to modern browsers Potential savings of 7 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers
Properly size images Potential savings of 554 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Defer offscreen images Potential savings of 640 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Keep request counts low and transfer sizes small 63 requests • 2,167 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Initial server response time was short Root document took 310 ms
Keep the server response time for the main document short because all other requests depend on it
Reduce unused JavaScript Potential savings of 209 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Reduce JavaScript execution time 1.9 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
Cumulative Layout Shift 0.118
Cumulative Layout Shift measures the movement of visible elements within the viewport
Reduce the impact of third-party code Third-party code blocked the main thread for 350 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
Time to Interactive 12.6 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Serve images in next-gen formats Potential savings of 254 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
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 1.1 s
First Contentful Paint marks the time at which the first text or image is painted
Total Blocking Time 340 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Avoid an excessive DOM size 1,089 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)
First Meaningful Paint 1.1 s
First Meaningful Paint measures when the primary content of a page is visible
Speed Index 4.8 s
Speed Index shows how quickly the contents of a page are visibly populated
Avoid chaining critical requests 4 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
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
Largest Contentful Paint 8.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Serve static assets with an efficient cache policy 24 resources found
A long cache lifetime can speed up repeat visits to your page
First Contentful Paint (3G) 1958 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Minimize main-thread work 3.4 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 260 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Tap targets are not sized appropriately 92% 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

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
Warning! Your title is not optimized
Description Website
Warning! Your description is not optimized
Robots.txt
Congratulations! Your site have a robots.txt file
Sitemap.xml
Warning! Not 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.
Broken Links
Congratulations! You not have broken links View links

Alexa Rank

99,999,999

Global Rank

99,999,999

-
Traffic
Search

Domain Available

Domain (TDL) and Typo Status
python.co Available Buy Now!
python.us Already Registered
python.com Already Registered
python.org Already Registered
python.net Already Registered
pthon.engineering Available Buy Now!
lython.engineering Available Buy Now!

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/2 200 
date: Sun, 29 May 2022 06:38:54 GMT
content-type: text/html; charset=UTF-8
cache-control: private, max-age=0, must-revalidate, no-cache, no-store
display: orig_site_sol
expires: Sat, 28 May 2022 06:38:54 GMT
link: ; rel="https://api.w.org/", ; rel=shortlink
pagespeed: off
response: 200
set-cookie: ezoadgid_349642=-1; Path=/; Domain=python.engineering; Expires=Sun, 29 May 2022 07:08:54 UTC
set-cookie: ezoref_349642=; Path=/; Domain=python.engineering; Expires=Sun, 29 May 2022 08:38:54 UTC
set-cookie: ezosuibasgeneris-1=75e530c4-20d2-4922-4560-5e753c02021c; Path=/; Domain=python.engineering; Expires=Mon, 29 May 2023 06:38:54 UTC; Secure; SameSite=None
set-cookie: ezoab_349642=mod35; Path=/; Domain=python.engineering; Expires=Sun, 29 May 2022 08:38:54 UTC
set-cookie: lp_349642=https://python.engineering/; Path=/; Domain=python.engineering; Expires=Sun, 29 May 2022 07:08:54 UTC
set-cookie: ezovuuidtime_349642=1653806334; Path=/; Domain=python.engineering; Expires=Tue, 31 May 2022 06:38:54 UTC
set-cookie: ezovuuid_349642=47a03574-3584-48c6-569c-29bdbba0852c; Path=/; Domain=python.engineering; Expires=Sun, 29 May 2022 07:08:54 UTC
set-cookie: ezopvc_349642=1; Path=/; Domain=python.engineering; Expires=Sun, 29 May 2022 07:08:54 UTC
strict-transport-security: max-age=31536000; preload
vary: Accept-Encoding
vary: Accept-Encoding
vary: User-Agent,Accept-Encoding
x-ezoic-cdn: Hit ds;mm;45701177a1c5bfcc38f79a3cbd364bd7;2-349642-0;45766ff2-9a5f-4bc1-752e-75b1c500ee51
x-middleton-display: orig_site_sol
x-middleton-response: 200
x-origin-cache-control:
x-powered-by: PHP/7.1.33
x-sol: orig
cf-cache-status: DYNAMIC
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=uf8fV6mdk9vzXCLi9fmzEBfHRtlfRejhUUxSceJctU3sm1BNf2Yfrn7U0OpO4DQnSvuiZOmwzs9A4zvPI0IuxglYZp6gOhNuIUzO4uY3vonSQEEDfvH6E8wcskafjwhDAa0j5L8%3D"}],"group":"cf-nel","max_age":604800}
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
cf-ray: 712d3ad4bf2e4150-HAM
content-encoding: gzip
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
DNS Records DNS Resource Records associated with a hostname
View DNS Records