Explained-from-first-principles.com Site Title

Explained from First Principles

Explained-from-first-principles.com Meta Description

Explained from First Principles is a technology, science, and philosophy blog for curious people.

Explained-from-first-principles.com Test Results

Explained-from-first-principles.com Mobile Performance: 83/100
Quick overview:
Max Potential First Input Delay
180 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
First Meaningful Paint
2.9 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric.
Time to Interactive
3.7 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Network Round Trip Times
10 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. Learn more about the Round Trip Time.
Diagnostics
Collection of useful page vitals.
Metrics
Collects all available metrics.
Final Screenshot
The last screenshot captured of the pageload.

1926238530710

Server Backend Latencies
110 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. Learn more about server response time.
Tasks
Lists the toplevel main thread tasks that executed during page load.
Script Treemap Data
Used for treemap app
Network Requests
Lists the network requests that were made during page load.

Explained-from-first-principles.com Mobile SEO: 91/100
Quick overview:
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Explained-from-first-principles.com Mobile Best Practices: 77/100
Quick overview:
Trust and Safety
Does not use HTTPS
1 insecure request found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over 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. Learn more about HTTPS.
Ensure CSP is effective against XSS attacks
A strong Content Security Policy (CSP) significantly reduces the risk of cross-site scripting (XSS) attacks. Learn how to use a CSP to prevent XSS
General
Detected JavaScript libraries
All front-end JavaScript libraries detected on the page. Learn more about this JavaScript library detection diagnostic audit.
Explained-from-first-principles.com Mobile PWA: 88/100
Quick overview:
PWA Optimized
Manifest doesn't have a maskable icon
A maskable icon ensures that the image fills the entire shape without being letterboxed when installing the app on a device. Learn about maskable manifest icons.
Explained-from-first-principles.com Mobile Accessibility: 78/100
Quick overview:
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Buttons do not have an accessible name
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.
Links do not have a discernible name
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Contrast
These are opportunities to improve the legibility of your content.
Links rely on color to be distinguishable.
Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.
Background and foreground colors do not have a sufficient contrast ratio.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Document has a main landmark.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Similar tests
www.explained-from-first-principles.com
www.explained-from-first-principles.net
www.explained-from-first-principles.org
www.explained-from-first-principles.info
www.explained-from-first-principles.biz
www.explained-from-first-principles.us
www.explained-from-first-principles.mobi
www.xplained-from-first-principles.com
www.explained-from-first-principles.com
www.wxplained-from-first-principles.com
www.ewxplained-from-first-principles.com
www.wexplained-from-first-principles.com
www.sxplained-from-first-principles.com
www.esxplained-from-first-principles.com
www.dxplained-from-first-principles.com
www.edxplained-from-first-principles.com
www.dexplained-from-first-principles.com
www.rxplained-from-first-principles.com
www.erxplained-from-first-principles.com
www.rexplained-from-first-principles.com
www.eplained-from-first-principles.com
www.ezplained-from-first-principles.com
www.exzplained-from-first-principles.com
www.ezxplained-from-first-principles.com
www.esplained-from-first-principles.com
www.exsplained-from-first-principles.com
www.edplained-from-first-principles.com
www.exdplained-from-first-principles.com
www.ecplained-from-first-principles.com
www.excplained-from-first-principles.com
www.ecxplained-from-first-principles.com
www.exlained-from-first-principles.com
www.exolained-from-first-principles.com
www.expolained-from-first-principles.com
www.exoplained-from-first-principles.com
www.exllained-from-first-principles.com
www.expllained-from-first-principles.com
www.exlplained-from-first-principles.com
www.expained-from-first-principles.com
www.exppained-from-first-principles.com
www.explpained-from-first-principles.com
www.expplained-from-first-principles.com
www.expoained-from-first-principles.com
www.exploained-from-first-principles.com
www.expkained-from-first-principles.com
www.explkained-from-first-principles.com
www.expklained-from-first-principles.com
www.explined-from-first-principles.com
www.explqined-from-first-principles.com
www.explaqined-from-first-principles.com
www.explqained-from-first-principles.com
www.explwined-from-first-principles.com
www.explawined-from-first-principles.com
www.explwained-from-first-principles.com
www.explsined-from-first-principles.com
www.explasined-from-first-principles.com
www.explsained-from-first-principles.com
www.explzined-from-first-principles.com
www.explazined-from-first-principles.com
www.explzained-from-first-principles.com
www.explaned-from-first-principles.com
www.explauned-from-first-principles.com
www.explaiuned-from-first-principles.com
www.explauined-from-first-principles.com
www.explajned-from-first-principles.com
www.explaijned-from-first-principles.com
www.explajined-from-first-principles.com
www.explakned-from-first-principles.com
www.explaikned-from-first-principles.com
www.explakined-from-first-principles.com
www.explaoned-from-first-principles.com
www.explaioned-from-first-principles.com
www.explaoined-from-first-principles.com
www.explaied-from-first-principles.com
www.explaibed-from-first-principles.com
www.explainbed-from-first-principles.com
www.explaibned-from-first-principles.com
www.explaihed-from-first-principles.com
www.explainhed-from-first-principles.com
www.explaihned-from-first-principles.com
www.explaijed-from-first-principles.com
www.explainjed-from-first-principles.com
www.explaimed-from-first-principles.com
www.explainmed-from-first-principles.com
www.explaimned-from-first-principles.com
www.explaind-from-first-principles.com
www.explainwd-from-first-principles.com
www.explainewd-from-first-principles.com
www.explainwed-from-first-principles.com
www.explainsd-from-first-principles.com
www.explainesd-from-first-principles.com
www.explainsed-from-first-principles.com
www.explaindd-from-first-principles.com
www.explainedd-from-first-principles.com
www.explainded-from-first-principles.com
www.explainrd-from-first-principles.com
www.explainerd-from-first-principles.com
www.explainred-from-first-principles.com
www.explaine-from-first-principles.com
www.explainex-from-first-principles.com
www.explainedx-from-first-principles.com
www.explainexd-from-first-principles.com
www.explaines-from-first-principles.com
www.explaineds-from-first-principles.com
www.explainee-from-first-principles.com
www.explainede-from-first-principles.com
www.explaineed-from-first-principles.com
www.explainer-from-first-principles.com
www.explainedr-from-first-principles.com
www.explainef-from-first-principles.com
www.explainedf-from-first-principles.com
www.explainefd-from-first-principles.com
www.explainec-from-first-principles.com
www.explainedc-from-first-principles.com
www.explainecd-from-first-principles.com
www.explainedfrom-first-principles.com
www.explained-rom-first-principles.com
www.explained-crom-first-principles.com
www.explained-fcrom-first-principles.com
www.explained-cfrom-first-principles.com
www.explained-drom-first-principles.com
www.explained-fdrom-first-principles.com
www.explained-dfrom-first-principles.com
www.explained-rrom-first-principles.com
www.explained-frrom-first-principles.com
www.explained-rfrom-first-principles.com
www.explained-trom-first-principles.com
www.explained-ftrom-first-principles.com
www.explained-tfrom-first-principles.com
www.explained-grom-first-principles.com
www.explained-fgrom-first-principles.com
www.explained-gfrom-first-principles.com
www.explained-vrom-first-principles.com
www.explained-fvrom-first-principles.com
www.explained-vfrom-first-principles.com
www.explained-fom-first-principles.com
www.explained-feom-first-principles.com
www.explained-freom-first-principles.com
www.explained-ferom-first-principles.com
www.explained-fdom-first-principles.com
www.explained-frdom-first-principles.com
www.explained-ffom-first-principles.com
www.explained-frfom-first-principles.com
www.explained-ffrom-first-principles.com
www.explained-ftom-first-principles.com
www.explained-frtom-first-principles.com
www.explained-frm-first-principles.com
www.explained-frim-first-principles.com
www.explained-froim-first-principles.com
www.explained-friom-first-principles.com
www.explained-frkm-first-principles.com
www.explained-frokm-first-principles.com
www.explained-frkom-first-principles.com
www.explained-frlm-first-principles.com
www.explained-frolm-first-principles.com
www.explained-frlom-first-principles.com
www.explained-frpm-first-principles.com
www.explained-fropm-first-principles.com
www.explained-frpom-first-principles.com
www.explained-fro-first-principles.com
www.explained-fron-first-principles.com
www.explained-fromn-first-principles.com
www.explained-fronm-first-principles.com
www.explained-froj-first-principles.com
www.explained-fromj-first-principles.com
www.explained-frojm-first-principles.com
www.explained-frok-first-principles.com
www.explained-fromk-first-principles.com
www.explained-fromfirst-principles.com
www.explained-from-irst-principles.com
www.explained-from-cirst-principles.com
www.explained-from-fcirst-principles.com
www.explained-from-cfirst-principles.com
www.explained-from-dirst-principles.com
www.explained-from-fdirst-principles.com
www.explained-from-dfirst-principles.com
www.explained-from-rirst-principles.com
www.explained-from-frirst-principles.com
www.explained-from-rfirst-principles.com
www.explained-from-tirst-principles.com
www.explained-from-ftirst-principles.com
www.explained-from-tfirst-principles.com
www.explained-from-girst-principles.com
www.explained-from-fgirst-principles.com
www.explained-from-gfirst-principles.com
www.explained-from-virst-principles.com
www.explained-from-fvirst-principles.com
www.explained-from-vfirst-principles.com
www.explained-from-frst-principles.com
www.explained-from-furst-principles.com
www.explained-from-fiurst-principles.com
www.explained-from-fuirst-principles.com
www.explained-from-fjrst-principles.com
www.explained-from-fijrst-principles.com
www.explained-from-fjirst-principles.com
www.explained-from-fkrst-principles.com
www.explained-from-fikrst-principles.com
www.explained-from-fkirst-principles.com
www.explained-from-forst-principles.com
www.explained-from-fiorst-principles.com
www.explained-from-foirst-principles.com
www.explained-from-fist-principles.com
www.explained-from-fiest-principles.com
www.explained-from-firest-principles.com
www.explained-from-fierst-principles.com
www.explained-from-fidst-principles.com
www.explained-from-firdst-principles.com
www.explained-from-fidrst-principles.com
www.explained-from-fifst-principles.com
www.explained-from-firfst-principles.com
www.explained-from-fifrst-principles.com
www.explained-from-fitst-principles.com
www.explained-from-firtst-principles.com
www.explained-from-fitrst-principles.com
www.explained-from-firt-principles.com
www.explained-from-firwt-principles.com
www.explained-from-firswt-principles.com
www.explained-from-firwst-principles.com
www.explained-from-firet-principles.com
www.explained-from-firset-principles.com
www.explained-from-firdt-principles.com
www.explained-from-firsdt-principles.com
www.explained-from-firzt-principles.com
www.explained-from-firszt-principles.com
www.explained-from-firzst-principles.com
www.explained-from-firxt-principles.com
www.explained-from-firsxt-principles.com
www.explained-from-firxst-principles.com
www.explained-from-firat-principles.com
www.explained-from-firsat-principles.com
www.explained-from-firast-principles.com
www.explained-from-firs-principles.com
www.explained-from-firsr-principles.com
www.explained-from-firstr-principles.com
www.explained-from-firsrt-principles.com
www.explained-from-firsf-principles.com
www.explained-from-firstf-principles.com
www.explained-from-firsft-principles.com
www.explained-from-firsg-principles.com
www.explained-from-firstg-principles.com
www.explained-from-firsgt-principles.com
www.explained-from-firsy-principles.com
www.explained-from-firsty-principles.com
www.explained-from-firsyt-principles.com
www.explained-from-firstprinciples.com
www.explained-from-first-rinciples.com
www.explained-from-first-orinciples.com
www.explained-from-first-porinciples.com
www.explained-from-first-oprinciples.com
www.explained-from-first-lrinciples.com
www.explained-from-first-plrinciples.com
www.explained-from-first-lprinciples.com
www.explained-from-first-pinciples.com
www.explained-from-first-peinciples.com
www.explained-from-first-preinciples.com
www.explained-from-first-perinciples.com
www.explained-from-first-pdinciples.com
www.explained-from-first-prdinciples.com
www.explained-from-first-pdrinciples.com
www.explained-from-first-pfinciples.com
www.explained-from-first-prfinciples.com
www.explained-from-first-pfrinciples.com
www.explained-from-first-ptinciples.com
www.explained-from-first-prtinciples.com
www.explained-from-first-ptrinciples.com
www.explained-from-first-prnciples.com
www.explained-from-first-prunciples.com
www.explained-from-first-priunciples.com
www.explained-from-first-pruinciples.com
www.explained-from-first-prjnciples.com
www.explained-from-first-prijnciples.com
www.explained-from-first-prjinciples.com
www.explained-from-first-prknciples.com
www.explained-from-first-priknciples.com
www.explained-from-first-prkinciples.com
www.explained-from-first-pronciples.com
www.explained-from-first-prionciples.com
www.explained-from-first-proinciples.com
www.explained-from-first-priciples.com
www.explained-from-first-pribciples.com
www.explained-from-first-prinbciples.com
www.explained-from-first-pribnciples.com
www.explained-from-first-prihciples.com
www.explained-from-first-prinhciples.com
www.explained-from-first-prihnciples.com
www.explained-from-first-prijciples.com
www.explained-from-first-prinjciples.com
www.explained-from-first-primciples.com
www.explained-from-first-prinmciples.com
www.explained-from-first-primnciples.com
www.explained-from-first-priniples.com
www.explained-from-first-prinxiples.com
www.explained-from-first-princxiples.com
www.explained-from-first-prinxciples.com
www.explained-from-first-prindiples.com
www.explained-from-first-princdiples.com
www.explained-from-first-prindciples.com
www.explained-from-first-prinfiples.com
www.explained-from-first-princfiples.com
www.explained-from-first-prinfciples.com
www.explained-from-first-prinviples.com
www.explained-from-first-princviples.com
www.explained-from-first-prinvciples.com
www.explained-from-first-princples.com
www.explained-from-first-princuples.com
www.explained-from-first-princiuples.com
www.explained-from-first-princuiples.com
www.explained-from-first-princjples.com
www.explained-from-first-princijples.com
www.explained-from-first-princjiples.com
www.explained-from-first-princkples.com
www.explained-from-first-princikples.com
www.explained-from-first-princkiples.com
www.explained-from-first-princoples.com
www.explained-from-first-princioples.com
www.explained-from-first-princoiples.com
www.explained-from-first-princiles.com
www.explained-from-first-princioles.com
www.explained-from-first-principoles.com
www.explained-from-first-princilles.com
www.explained-from-first-principlles.com
www.explained-from-first-princilples.com
www.explained-from-first-principes.com
www.explained-from-first-princippes.com
www.explained-from-first-principlpes.com
www.explained-from-first-principples.com
www.explained-from-first-principoes.com
www.explained-from-first-principloes.com
www.explained-from-first-principkes.com
www.explained-from-first-principlkes.com
www.explained-from-first-principkles.com
www.explained-from-first-principls.com
www.explained-from-first-principlws.com
www.explained-from-first-principlews.com
www.explained-from-first-principlwes.com
www.explained-from-first-principlss.com
www.explained-from-first-principless.com
www.explained-from-first-principlses.com
www.explained-from-first-principlds.com
www.explained-from-first-principleds.com
www.explained-from-first-principldes.com
www.explained-from-first-principlrs.com
www.explained-from-first-principlers.com
www.explained-from-first-principlres.com
www.explained-from-first-principle.com
www.explained-from-first-principlew.com
www.explained-from-first-principlesw.com
www.explained-from-first-principlee.com
www.explained-from-first-principlese.com
www.explained-from-first-principlees.com
www.explained-from-first-principled.com
www.explained-from-first-principlesd.com
www.explained-from-first-principlez.com
www.explained-from-first-principlesz.com
www.explained-from-first-principlezs.com
www.explained-from-first-principlex.com
www.explained-from-first-principlesx.com
www.explained-from-first-principlexs.com
www.explained-from-first-principlea.com
www.explained-from-first-principlesa.com
www.explained-from-first-principleas.com
www.explained-from-first-principles.con
Last Tested: