astronomynotes.com Website Information
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Daily Page Views: 54,325
Income Per Day: $136
Estimated Value: $81,600
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The highest website astronomynotes.com position in Alexa rank database was 47664 and the lowest rank position was 981013. Current position of astronomynotes.com in Alexa rank database is 125399.
Desktop speed score of astronomynotes.com (97/100) is better than the results of 95.04% of other sites and shows that the page is performing great on desktop computers.
Mobile usability score of astronomynotes.com (66/100) is better than the results of 14.96% of other sites and means that the page is not mobile-friendly.
Mobile speed score of astronomynotes.com (97/100) is better than the results of 95.14% of other sites and shows that the landing page performance on mobile devices is excellent.
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astronomynotes.com Alexa Rank
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Registry Domain ID: 30660433_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.fastdomain.com
Registrar URL: http://www.fastdomain.com
Updated Date: 2024-06-15T06:57:20Z
Creation Date: 2000-06-30T20:01:11Z
Registry Expiry Date: 2025-06-30T20:01:11Z
Registrar: FastDomain Inc.
Registrar IANA ID: 1154
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URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-10-21T08:58:02Z
astronomynotes.com server information
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astronomynotes.com desktop page speed rank
Last tested: 2019-01-03
astronomynotes.com Desktop Speed Test Quick Summary
priority - 1Leverage browser caching
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.
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http://cse.google.com/adsense/search/async-ads.js (60 minutes)
priority - 1Optimize images
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Compressing https://www.google.com/cse/static/css/v2/clear.png could save 898B (88% reduction).
priority - 0Minify CSS
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Minifying https://www.google.com/cse/static/style/look/v2/default.css could save 577B (19% reduction) after compression.
astronomynotes.com Desktop Resource Breakdown
Total Resources | 13 |
Number of Hosts | 5 |
Static Resources | 8 |
JavaScript Resources | 3 |
CSS Resources | 2 |
astronomynotes.com mobile page speed rank
Last tested: 2019-01-03
astronomynotes.com Mobile Speed Test Quick Summary
priority - 1Leverage browser caching
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:
http://cse.google.com/adsense/search/async-ads.js (60 minutes)
priority - 1Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 6.7KiB (38% reduction).
Compressing https://www.google.com/cse/static/css/v2/clear.png could save 898B (88% reduction).
priority - 0Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
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Minifying https://www.google.com/cse/static/style/look/v2/default.css could save 577B (19% reduction) after compression.
astronomynotes.com Mobile Resource Breakdown
Total Resources | 13 |
Number of Hosts | 5 |
Static Resources | 8 |
JavaScript Resources | 3 |
CSS Resources | 2 |
astronomynotes.com mobile page usability
Last tested: 2019-01-03
astronomynotes.com Mobile Usability Test Quick Summary
priority - 39Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
Currently thes…ronomy terms.
and 15 others render only 6 pixels tall (16 CSS pixels).How to navigat…n this website
and 3 others render only 7 pixels tall (19 CSS pixels).Purchase the A…my Notes book!
and 2 others render only 6 pixels tall (16 CSS pixels).(
and 1 others render only 6 pixels tall (16 CSS pixels).View animation of cover
renders only 6 pixels tall (16 CSS pixels).Author of
and 2 others render only 6 pixels tall (16 CSS pixels).Contents (chap…descriptions):
and 1 others render only 6 pixels tall (16 CSS pixels).copyright notice
and 4 others render only 6 pixels tall (16 CSS pixels).Study Skills:…work and exams
and 34 others render only 6 pixels tall (16 CSS pixels).. This chapter…ring systems.
and 20 others render only 6 pixels tall (16 CSS pixels).of nature…sets include:
and 20 others render only 6 pixels tall (16 CSS pixels).Although the h…other schools.
and 3 others render only 6 pixels tall (16 CSS pixels).Pseudoscience…ience article.
and 2 others render only 6 pixels tall (16 CSS pixels).Updated Rosett…v-Gerasimenko.
renders only 6 pixels tall (16 CSS pixels).Angular Momentum in Astronomy
and 5 others render only 6 pixels tall (16 CSS pixels).. A bimonthly…scussed on the
and 5 others render only 6 pixels tall (16 CSS pixels).Astronomy beyond this website:
renders only 6 pixels tall (16 CSS pixels).Astronomy on the Web
and 2 others render only 6 pixels tall (16 CSS pixels).. Links to mor…f out there!
and 2 others render only 6 pixels tall (16 CSS pixels).(Select the li…ke a donation)
renders only 7 pixels tall (19 CSS pixels).Is this page a…tronomy Notes?
renders only 5 pixels tall (13 CSS pixels).Nick Strobel
and 1 others render only 6 pixels tall (16 CSS pixels).priority - 10Configure the viewport
Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
priority - 3Size tap targets appropriately
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.
<a href="#details">Jump to Chapters listing</a>
is close to 1 other tap targets.<a href="howto.htm">How to navigat…n this website</a>
and 3 others are close to other tap targets.<a href="purchase.htm">Purchase the A…my Notes book!</a>
and 2 others are close to other tap targets.<a href="copyright.htm">copyright notice</a>
and 1 others are close to other tap targets.<a href="pseudoscience.html">Pseudoscience…ience article.</a>
is close to 1 other tap targets.<a href="bogus-science-sevensigns.html">The Seven Warn…Bogus Science</a>
and 4 others are close to other tap targets.The tap target
<a href="glossary/glossin.htm">Glossary</a>
and 1 others are close to other tap targets.The tap target
<a href="astrlink.htm">Astronomy on the Web</a>
and 2 others are close to other tap targets.astronomynotes.com HTML validation
Errors
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
"...<html> <head..."
Attribute “value” not allowed on element “meta” at this point.
"...s</title> <meta name="description" value="Astronomy notes by Nick Strobel for an introductory astronomy course."> <meta..." Line: 13 Column: 1 - 43
"...course."> <meta name="keywords" value="Astronomy, Education, Teaching, Physics, naked eye astronomy, light, electromagnetic radiation, telescope, planet, solar system, star, stellar properties, magnitude, spectral type, HR diagram, Hertzsprung-Russell Diagram, Sun, fusion, comet, meteorite, stellar structure, stellar interior, life, birth, death, universe stellar evolution, stellar remnants, galactic structure, Milky Way, extra-galactic astronomy, Hubble Constant, Hubble Law, cosmology, extra-terrestrial life, scientific method"> <meta..." Line: 14 Column: 1 - 44
"... method"> <meta name="resource-type" value="document"> <meta..." Line: 15 Column: 1 - 41
"...ocument"> <meta name="distribution" value="global"> <scri..."
Element “meta” is missing one or more of the following attributes: “content”, “property”.
"...s</title> <meta name="description" value="Astronomy notes by Nick Strobel for an introductory astronomy course."> <meta..." Line: 13 Column: 1 - 43
"...course."> <meta name="keywords" value="Astronomy, Education, Teaching, Physics, naked eye astronomy, light, electromagnetic radiation, telescope, planet, solar system, star, stellar properties, magnitude, spectral type, HR diagram, Hertzsprung-Russell Diagram, Sun, fusion, comet, meteorite, stellar structure, stellar interior, life, birth, death, universe stellar evolution, stellar remnants, galactic structure, Milky Way, extra-galactic astronomy, Hubble Constant, Hubble Law, cosmology, extra-terrestrial life, scientific method"> <meta..." Line: 14 Column: 1 - 44
"... method"> <meta name="resource-type" value="document"> <meta..." Line: 15 Column: 1 - 41
"...ocument"> <meta name="distribution" value="global"> <scri..."
The “bgcolor” attribute on the “body” element is obsolete. Use CSS instead.
"...> </head> <body bgcolor="white" text="black"> <h1 ..."
The “text” attribute on the “body” element is obsolete. Use CSS instead.
"...> </head> <body bgcolor="white" text="black"> <h1 ..."
The “align” attribute on the “h1” element is obsolete. Use CSS instead.
"..."black"> <h1 align="center">Astron..."
Element “gcse:search” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
"...</script> <gcse:search></gcse..."
The “width” attribute on the “table” element is obsolete. Use CSS instead.
"...> </div> <table width="653" border="0"> <tr..."
The “border” attribute on the “table” element is obsolete. Use CSS instead.
"...> </div> <table width="653" border="0"> <tr..."
The “width” attribute on the “td” element is obsolete. Use CSS instead.
"...0"> <tr> <td width="282"> <h..." Line: 58 Column: 79 - 16
"...</h3></td> <td width="361"><h4><a..." Line: 64 Column: 10 - 31
"... </tr><tr> <td width="282" align="center"><img s..."
The “align” attribute on the “td” element is obsolete. Use CSS instead.
"... </tr><tr> <td width="282" align="center"><img s..."
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
"...="center"><img src="front.jpg" width="214" height="261"><br> ..."
The “center” element is obsolete. Use CSS instead.
"...his date) <center><a hre..."
Warnings
The “language” attribute on the “script” element is obsolete. You can safely omit it.
"..."global"> <script language="JavaScript"> <!-- ..."
Element name “gcse:search” cannot be represented as XML 1.0.
"...</script> <gcse:search></gcse..."
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
"...</a>. <p> <a name="details"><b>Con..."
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
"...<html> <head..."
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astronomynotes.com Ping
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