Python.engineering - SEO Checker

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19 python.engineering Last Updated: 10 months

Success 40% of passed verification steps

Warning 30% of total warning

Errors 30% of total errors, require fast action

Mobile

Performance Desktop Score 84%

Best Practices Desktop Score 71%

SEO Desktop Score 91%

Progressive Web App Desktop Score 37%

Performance Mobile Score 70%

Best Practices Mobile Score 71%

SEO Mobile Score 100%

Progressive Web App Mobile Score 39%

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 122 Characters

THE BEST BIG DATA & MACHINE LEANING BOOKS: 2020 REVIEW. LEARN PYTHON PROGRAMMING WITH FREE PDF BOOKS AT PYTHON.ENGINEERING

Meta Description 162 Characters

The best Big Data & Machine Leaning books: 2020 review — get the best Python ebooks for free. Machine Learning, Data Analysis with Python books for beginners

Effective URL 25 Characters

http://python.engineering

Excerpt Page content

The best Big Data & Machine Leaning books: 2020 review. Learn Python programming with free PDF books at Python.Engineering ...

Keywords Cloud Density

hadoop7 architect6 cloud5 dummies5 books5 оборудования5 python5 best4 development4 learning4

Keyword Consistency Keyword density is one of the main terms in SEO

Keyword	Freq	Title	Desc	Domain	H1	H2
hadoop	7
architect	6
cloud	5
dummies	5
books	5
оборудования	5
python	5
best	4
development	4
learning	4

Google Preview Your look like this in google search result

THE BEST BIG DATA & MACHINE LEANING BOOKS: 2020 REVIEW. LEAR

http://python.engineering

The best Big Data & Machine Leaning books: 2020 review — get the best Python ebooks for free. Machine Learning, Data Analysis with Python books f

Robots.txt File Detected

http://python.engineering/robots.txt

Sitemap.xml File Detected

http://python.engineering/sitemap.xml

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 / 1 year

Create on: 2020-06-07 / 1 year

Expires on: 2021-06-07 / 1 months 17 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: ~25.2 KB

Code Size: ~18.66 KB

Text Size: ~6.54 KB Ratio: 25.94%

Estimation Traffic and Earnings

Unique Visits

Daily

Pages Views

Daily

Income

Daily

224

Unique Visits

Monthly

399

Pages Views

Monthly

Income

Monthly

2,592

Unique Visits

Yearly

4,704

Pages Views

Yearly

Income

Yearly

Desktop

Largest Contentful Paint element 1 element found

This is the largest contentful element painted within the viewport

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

Keep request counts low and transfer sizes small 34 requests • 1,897 KiB

To set budgets for the quantity and size of page resources, add a budget.json file

Avoid chaining critical requests 14 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

Remove unused JavaScript Potential savings of 20 KiB

Remove unused JavaScript to reduce bytes consumed by network activity

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 63 KiB

Optimized images load faster and consume less cellular data

Avoid large layout shifts 3 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

Does not use HTTPS 30 insecure requests found

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding [mixed content](https://developers.google.com/web/fundamentals/security/prevent-mixed-content/what-is-mixed-content), where some resources are loaded over HTTP despite the initial request being servedover HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs

Includes front-end JavaScript libraries with known security vulnerabilities 9 vulnerabilities detected

Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

Initial server response time was short Root document took 450 ms

Keep the server response time for the main document short because all other requests depend on it

First CPU Idle 0.9 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/).

Eliminate render-blocking resources Potential savings of 820 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles

Speed Index 0.9 s

Speed Index shows how quickly the contents of a page are visibly populated

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

Minify JavaScript Potential savings of 4 KiB

Minifying JavaScript files can reduce payload sizes and script parse time

Avoids an excessive DOM size 195 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)

Minimizes main-thread work 0.3 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 20 ms

The maximum potential First Input Delay that your users could experience is the duration of the longest task

Properly size images Potential savings of 1,416 KiB

Serve images that are appropriately-sized to save cellular data and improve load time

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

First Contentful Paint 0.8 s

First Contentful Paint marks the time at which the first text or image is painted

Minify CSS Potential savings of 5 KiB

Minifying CSS files can reduce network payload sizes

Time to Interactive 0.9 s

Time to interactive is the amount of time it takes for the page to become fully interactive

Serve static assets with an efficient cache policy 27 resources found

A long cache lifetime can speed up repeat visits to your page

Cumulative Layout Shift 0.145

Cumulative Layout Shift measures the movement of visible elements within the viewport

Largest Contentful Paint 2.6 s

Largest Contentful Paint marks the time at which the largest text or image is painted

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

Remove unused CSS Potential savings of 21 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

Avoids enormous network payloads Total size was 1,897 KiB

Large network payloads cost users real money and are highly correlated with long load times

JavaScript execution time 0.0 s

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this

Serve images in next-gen formats Potential savings of 1,413 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

Total Blocking Time 0 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds

Mobile

First Contentful Paint (3G) 5871 ms

First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network

Minify CSS Potential savings of 5 KiB

Minifying CSS files can reduce network payload sizes

Avoids enormous network payloads Total size was 1,968 KiB

Large network payloads cost users real money and are highly correlated with long load times

Avoid long main-thread tasks 5 long tasks found

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay

Efficiently encode images Potential savings of 63 KiB

Optimized images load faster and consume less cellular data

Serve static assets with an efficient cache policy 28 resources found

A long cache lifetime can speed up repeat visits to your page

Serve images in next-gen formats Potential savings of 1,413 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

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

Initial server response time was short Root document took 450 ms

Keep the server response time for the main document short because all other requests depend on it

Minimize third-party usage Third-party code blocked the main thread for 250 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 4.0 s

Time to interactive is the amount of time it takes for the page to become fully interactive

Max Potential First Input Delay 160 ms

The maximum potential First Input Delay that your users could experience is the duration of the longest task

Remove unused CSS Potential savings of 22 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

Minimizes main-thread work 1.6 s

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this

Does not use HTTPS 31 insecure requests found

Remove unused JavaScript Potential savings of 20 KiB

Remove unused JavaScript to reduce bytes consumed by network activity

First Contentful Paint 2.9 s

First Contentful Paint marks the time at which the first text or image is painted

Speed Index 3.7 s

Speed Index shows how quickly the contents of a page are visibly populated

Properly size images Potential savings of 1,275 KiB

Serve images that are appropriately-sized to save cellular data and improve load time

Avoid chaining critical requests 14 chains found

Total Blocking Time 140 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds

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

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

First Meaningful Paint 3.3 s

First Meaningful Paint measures when the primary content of a page is visible

Keep request counts low and transfer sizes small 35 requests • 1,968 KiB

To set budgets for the quantity and size of page resources, add a budget.json file

Avoid large layout shifts 1 element found

These DOM elements contribute most to the CLS of the page.

Avoids an excessive DOM size 195 elements

JavaScript execution time 0.6 s

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this

Eliminate render-blocking resources Potential savings of 2,630 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles

Estimated Input Latency 10 ms

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

Preload key requests Potential savings of 300 ms

Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load

Includes front-end JavaScript libraries with known security vulnerabilities 9 vulnerabilities detected

Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

Largest Contentful Paint element 1 element found

This is the largest contentful element painted within the viewport

Largest Contentful Paint 6.8 s

Largest Contentful Paint marks the time at which the largest text or image is painted

First CPU Idle 3.4 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/).

Minify JavaScript Potential savings of 4 KiB

Minifying JavaScript files can reduce payload sizes and script parse time

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

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

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

Warning! Your site not have a favicon

Broken Links

Warning! You have broken links View links

First 13 Links	Relationship	HTTP Status
http://python.engineering/	Internal Link	200
Architect	Internal Link	404
Development	Internal Link	200
Cloud	Internal Link	404
For Dummies	Internal Link	200
Hadoop	Internal Link	404
E-BOOKS	Internal Link	200
Latest news	Internal Link	404
Analytics	Internal Link	404
Become an author and write for us	Internal Link	404
Analysis	Internal Link	404
Apache	Internal Link	404
Python	Internal Link	404

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server

HTTP/1.1 200 OK
Date: Fri, 25 Sep 2020 16:31:14 GMT
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
Set-Cookie: __cfduid=d6e20eb79f432b818534030e090ce8e241601051473; expires=Sun, 25-Oct-20 16:31:13 GMT; path=/; domain=.python.engineering; HttpOnly; SameSite=Lax
X-Powered-By: PHP/7.1.33
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Link: ; rel="https://api.w.org/", ; rel=shortlink
Set-Cookie: PHPSESSID=1c2010657802fdacf9a1329ee7ca542b; path=/
CF-Cache-Status: DYNAMIC
cf-request-id: 0567b3ced00000cdb7b026d200000001
Server: cloudflare
CF-RAY: 5d86225e1ce4cdb7-CDG
Content-Encoding: gzip

DNS Records DNS Resource Records associated with a hostname

View DNS Records

Type	Name	Value	Class	TTL
A	python.engineering	104.31.71.165	IN	102
A	python.engineering	172.67.181.212	IN	102
A	python.engineering	104.31.70.165	IN	102
NS	python.engineering	noah.ns.cloudflare.com	IN	85038
NS	python.engineering	gabriella.ns.cloudflare.com	IN	85038
AAAA	python.engineering	2606:4700:3030::ac43:b5d4	IN	101
AAAA	python.engineering	2606:4700:3033::681f:46a5	IN	101
AAAA	python.engineering	2606:4700:3035::681f:47a5	IN	101

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