astronomy.com Website Information

Daily Unique Visits: 439,281

Daily Page Views: 3,514,248

Income Per Day: $3,514

Estimated Value: $3,795,120

This website is located in United States and is using following IP address 173.226.48.53. See the complete list of popular websites hosted in United States.

astronomy.com is registered under .COM top-level domain. Please check other sites in .COM zone.

Website astronomy.com is using the following name servers:

dns4.kalmbach.com
vmdns2.kalmbach.com

and is probably hosted by FASTLY - Fastly, US. See the full list of other websites hosted by FASTLY - Fastly, US.

The highest website astronomy.com position in Alexa rank database was 3268 and the lowest rank position was 3738. Current position of astronomy.com in Alexa rank database is 3469.

Desktop speed score of astronomy.com (53/100) is better than the results of 27.05% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of astronomy.com (98/100) is better than the results of 55.61% of other sites and means that the page is mobile-friendly.

Mobile speed score of astronomy.com (47/100) is better than the results of 28.68% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

astronomy.com Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.

astronomy.com whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.

Domain Name: ASTRONOMY.COM
Registry Domain ID: 695163_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2024-07-13T01:26:05Z
Creation Date: 1995-01-10T05:00:00Z
Registry Expiry Date: 2029-01-09T05:00:00Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: 480-624-2505
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: NS-1099.AWSDNS-09.ORG
Name Server: NS-167.AWSDNS-20.COM
Name Server: NS-1918.AWSDNS-47.CO.UK
Name Server: NS-697.AWSDNS-23.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-16T23:49:54Z

astronomy.com server information

Servers Location

astronomy.com desktop page speed rank

Last tested: 2016-10-12

Desktop Speed Bad

53/100

astronomy.com Desktop Speed Test Quick Summary

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priority - 31Optimize images

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priority - 17Leverage browser caching

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priority - 14Eliminate render-blocking JavaScript and CSS in above-the-fold content

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astronomy.com Desktop Resource Breakdown

Total Resources	178
Number of Hosts	29
Static Resources	154
JavaScript Resources	38
CSS Resources	15

astronomy.com mobile page speed rank

Last tested: 2016-10-12

Mobile Speed Bad

47/100

astronomy.com Mobile Speed Test Quick Summary

priority - 56Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 34Enable compression

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priority - 26Leverage browser caching

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priority - 8Optimize images

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priority - 1Minify JavaScript

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astronomy.com Mobile Resource Breakdown

Total Resources	175
Number of Hosts	29
Static Resources	151
JavaScript Resources	38
CSS Resources	15

astronomy.com mobile page usability

Last tested: 2016-10-12

Mobile Usability Good

98/100

astronomy.com Mobile Usability Test Quick Summary

priority - 2Size 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.

The tap target <a href="http://cs.astr…e/default.aspx">DAVE'S UNIVERSE</a> and 3 others are close to other tap targets.

The tap target <a href="http://cs.astr…d-bodanis.aspx">Book review: E…David Bodanis</a> and 1 others are close to other tap targets.
The tap target <a href="http://www.twi…m/AstronomyMag">Twitter</a> and 1 others are close to other tap targets.
The tap target <a href="/issues/2016/november-2016">Table of Contents</a> and 2 others are close to other tap targets.
The tap target <a href="/magazine/pres…hts-on-jupiter">August 2016: J…hts on Jupiter</a> is close to 1 other tap targets.
The tap target <a href="https://m.face…tronomy.com%2F">link</a> is close to 1 other tap targets.
The tap target <a href="/news">News</a> and 12 others are close to other tap targets.
The tap target <a href="http://www.kalmbach.com">Kalmbach Publishing Co.</a> and 16 others are close to other tap targets.

astronomy.com HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Line: 3 Column: 1 - 121
"... <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <htm..."

Attribute “xmlns:fb” not allowed here.

Line: 5 Column: 122 - 75
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://ogp.me/ns/fb#"> <head..."

Bad value “http://fonts.googleapis.com/css?family=PT+Sans:400,700,400italic,700italic|PT+Sans+Narrow:400,700” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.

Line: 10 Column: 1 - 146
"...sheet"/> <link rel="Stylesheet" type="text/css" href="http://fonts.googleapis.com/css?family=PT+Sans:400,700,400italic,700italic|PT+Sans+Narrow:400,700" /> <link..."

Bad value “handheld, only screen and (max-width:450px)” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

Line: 17 Column: 1 - 137
"...00px)" /> <link rel="stylesheet" type="text/css" href="/sitefiles/styles/override_450_0.css" media="handheld, only screen and (max-width:450px)" /> <link..."

Element “meta” is missing required attribute “content”.

Line: 113 Column: 332 - 376
"...9B.jpg" /><meta id="metaOgTitle" property="og:title" /><meta ..." Line: 113 Column: 377 - 433
"...:title" /><meta id="metaOgDescription" property="og:description" /> <..."

Bad start tag in “img” in “head”.

Line: 143 Column: 11 - 2
"...<noscript><img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=341891263143383&ev=PageView&noscript=1" /></nosc..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 143 Column: 11 - 2
"...<noscript><img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=341891263143383&ev=PageView&noscript=1" /></nosc..."

Stray end tag “noscript”.

Line: 143 Column: 3 - 13
"...ipt=1" /></noscript> <!-- ..."

Stray end tag “head”.

Line: 149 Column: 1 - 7
"...m Ads --> </head> <bo..."

Start tag “body” seen but an element of the same type was already open.

Line: 152 Column: 1 - 6
"...</head> <body> <..."

Bad value “/-/media/Images/Magazine Covers/2020/maycover2.png?mh=240” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 200 Column: 117 - 228
"...may-2020"><img src="/-/media/Images/Magazine Covers/2020/maycover2.png?mh=240" alt="maycover2" width="187" height="240" /></a></..." Line: 450 Column: 1740 - 1851
"...may-2020"><img src="/-/media/Images/Magazine Covers/2020/maycover2.png?mh=240" alt="maycover2" width="187" height="240" /></a></..." Line: 574 Column: 164 - 275
"...may-2020"><img src="/-/media/Images/Magazine Covers/2020/maycover2.png?mh=240" alt="maycover2" width="187" height="240" /></a></..." Line: 665 Column: 132 - 243
"...may-2020"><img src="/-/media/Images/Magazine Covers/2020/maycover2.png?mh=240" alt="maycover2" width="187" height="240" /></a></..."

Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.

Line: 239 Column: 5 - 62
"...Box"> <input type="button" class="almcBackDay almcDateButton" /> <..." Line: 241 Column: 5 - 65
"...y" /> <input type="button" class="almcForwardDay almcDateButton" /> </..."

Bad value “/-/media/Images/News and Observing/News/2020/05/spaceXcrewdragonlaunch.jpg?mw=300” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 450 Column: 4328 - 4476
"...to-space"><img src="/-/media/Images/News and Observing/News/2020/05/spaceXcrewdragonlaunch.jpg?mw=300" alt="spaceXcrewdragonlaunch" width="300" height="200" /></a></..."

Bad value “/-/media/Images/News and Observing/Sky this Week/STW 2020/May/SummerTriangle.jpg?mw=300” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 450 Column: 6654 - 6800
"...o-june-5"><img src="/-/media/Images/News and Observing/Sky this Week/STW 2020/May/SummerTriangle.jpg?mw=300" alt="SummerTriangle" width="300" height="207" /></a></..."

Bad value “/-/media/Images/Photo of Day/Large Images/2020/06/APOD20200601.jpg?mw=300” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 450 Column: 9272 - 9404
"...s-gather"><img src="/-/media/Images/Photo of Day/Large Images/2020/06/APOD20200601.jpg?mw=300" alt="Planets gather" width="300" height="190" /></a></..."

Bad value “/-/media/Images/Videos/Astro News Bytes/PlasmaLensedPulsar.png?mw=300” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 450 Column: 11770 - 11902
"...d-pulsar"><img src="/-/media/Images/Videos/Astro News Bytes/PlasmaLensedPulsar.png?mw=300" alt="PlasmaLensedPulsar" width="300" height="169" /></a></..."

Bad value “/-/media/Images/Magazine Covers/2020/maycover2.png?mh=200” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 450 Column: 19212 - 19323
"...may-2020"><img src="/-/media/Images/Magazine Covers/2020/maycover2.png?mh=200" alt="maycover2" width="156" height="200" /></a></..."

Bad value “/-/media/Images/Homepage Elements/Flash Promos/Circ/280x454_P37728.jpg?mw=280” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 469 Column: 888 - 983
"...="_blank"><img src="/-/media/Images/Homepage Elements/Flash Promos/Circ/280x454_P37728.jpg?mw=280" alt=""></a><d..."

Bad value “/-/media/Images/News and Observing/News/2020/05/cosmicreef.jpg?mw=600” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 475 Column: 185 - 282
"...mic-reef"><img src="/-/media/Images/News and Observing/News/2020/05/cosmicreef.jpg?mw=600" alt="cosmicreef"></a><d..." Line: 493 Column: 617 - 704
"...mic-reef"><img src="/-/media/Images/News and Observing/News/2020/05/cosmicreef.jpg?mw=600" alt=""></a><d..."

Bad value “/-/media/Images/Homepage Elements/Flash Promos/Circ/280x454_P37749.jpg?mw=280” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 476 Column: 180 - 275
"...="_blank"><img src="/-/media/Images/Homepage Elements/Flash Promos/Circ/280x454_P37749.jpg?mw=280" alt=""></a><d..."

Bad value “/-/media/Images/News and Observing/News/2020/05/galaxiessmall.jpg?mw=280” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 479 Column: 118 - 208
"...="_blank"><img src="/-/media/Images/News and Observing/News/2020/05/galaxiessmall.jpg?mw=280" alt=""></a><d..."

Bad value “/-/media/Images/News and Observing/News/2020/04/asteroid_Earth_1.jpg?mw=600” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 479 Column: 722 - 831
"...ontinues"><img src="/-/media/Images/News and Observing/News/2020/04/asteroid_Earth_1.jpg?mw=600" alt="asteroid_Earth_1"></a><d..." Line: 494 Column: 171 - 264
"...ontinues"><img src="/-/media/Images/News and Observing/News/2020/04/asteroid_Earth_1.jpg?mw=600" alt=""></a><d..."

Bad value “/-/media/Images/News and Observing/News/2020/04/Sunfilaments.jpg?mw=600” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 483 Column: 306 - 407
"...e-plasma"><img src="/-/media/Images/News and Observing/News/2020/04/Sunfilaments.jpg?mw=600" alt="Sunfilaments"></a><d..." Line: 494 Column: 815 - 904
"...e-plasma"><img src="/-/media/Images/News and Observing/News/2020/04/Sunfilaments.jpg?mw=600" alt=""></a><d..."

Bad value “/-/media/Images/News and Observing/News/2018/12/tripsslider.jpg?mw=600” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 483 Column: 901 - 1000
"...ps-tours"><img src="/-/media/Images/News and Observing/News/2018/12/tripsslider.jpg?mw=600" alt="tripsslider"></a><d..." Line: 494 Column: 1361 - 1449
"...ps-tours"><img src="/-/media/Images/News and Observing/News/2018/12/tripsslider.jpg?mw=600" alt=""></a><d..."

Bad value “/-/media/Images/News and Observing/News/2020/03/startrails894500_1280.jpg?mw=600” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 484 Column: 158 - 277
"...ng-stars"><img src="/-/media/Images/News and Observing/News/2020/03/startrails894500_1280.jpg?mw=600" alt="startrails894500_1280"></a><d..." Line: 495 Column: 142 - 240
"...ng-stars"><img src="/-/media/Images/News and Observing/News/2020/03/startrails894500_1280.jpg?mw=600" alt=""></a><d..."

Bad value “/-/media/Images/News and Observing/News/2019/11/starship_slider.jpg?mw=280” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 486 Column: 316 - 408
"...-testing"><img src="/-/media/Images/News and Observing/News/2019/11/starship_slider.jpg?mw=280" alt=""></a><d..."

Bad value “/-/media/Images/News and Observing/News/2019/06/Moonvillage.jpg?mw=280” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 488 Column: 319 - 407
"...r-colony"><img src="/-/media/Images/News and Observing/News/2019/06/Moonvillage.jpg?mw=280" alt=""></a><d..."

Bad value “/-/media/Images/Magazine/Trips Tours/2020 South Pacific/2012GAU_Banner_Slider_ASY.jpg?mw=600” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 490 Column: 295 - 430
"...-pacific"><img src="/-/media/Images/Magazine/Trips Tours/2020 South Pacific/2012GAU_Banner_Slider_ASY.jpg?mw=600" alt="2012GAU_Banner_Slider_ASY"></a><d..." Line: 497 Column: 274 - 384
"...-pacific"><img src="/-/media/Images/Magazine/Trips Tours/2020 South Pacific/2012GAU_Banner_Slider_ASY.jpg?mw=600" alt=""></a><d..."

Bad value “/-/media/Images/Homepage Elements/Flash Promos/Circ/280x454_P37599.jpg?mw=280” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 492 Column: 374 - 469
"...="_blank"><img src="/-/media/Images/Homepage Elements/Flash Promos/Circ/280x454_P37599.jpg?mw=280" alt=""></a><d..."

Bad value “/-/media/Images/News and Observing/News/2019/11/MoonInSky_slider.jpg?mw=280” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 492 Column: 880 - 973
"...n-lander"><img src="/-/media/Images/News and Observing/News/2019/11/MoonInSky_slider.jpg?mw=280" alt=""></a><d..."

Bad value “/-/media/Images/News and Observing/News/2020/05/spaceXcrewdragonlaunch.jpg?mw=700” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 529 Column: 244 - 392
"...to-space"><img src="/-/media/Images/News and Observing/News/2020/05/spaceXcrewdragonlaunch.jpg?mw=700" alt="spaceXcrewdragonlaunch" width="650" height="433" /></a><d..."

Bad value “/-/media/Images/News and Observing/Sky this Week/STW 2020/May/SummerTriangle.jpg?mw=700” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 529 Column: 709 - 855
"...o-june-5"><img src="/-/media/Images/News and Observing/Sky this Week/STW 2020/May/SummerTriangle.jpg?mw=700" alt="SummerTriangle" width="700" height="483" /></a><d..."

Bad value “/-/media/Images/News and Observing/News/2020/05/NicoleStott.jpg?mw=700” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 529 Column: 1119 - 1245
"...n-launch"><img src="/-/media/Images/News and Observing/News/2020/05/NicoleStott.jpg?mw=700" alt="NicoleStott" width="700" height="465" /></a><d..."

Bad value “/-/media/Images/News and Observing/News/2020/04/asteroid_Earth_1.jpg?mw=200” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 531 Column: 174 - 310
"...ontinues"><img src="/-/media/Images/News and Observing/News/2020/04/asteroid_Earth_1.jpg?mw=200" alt="asteroid_Earth_1" width="200" height="133" /></a></..."

Bad value “/-/media/Images/News and Observing/News/2020/04/JimLovellInterview.jpg?mw=200” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 531 Column: 573 - 713
"...pollo-13"><img src="/-/media/Images/News and Observing/News/2020/04/JimLovellInterview.jpg?mw=200" alt="JimLovellInterview" width="200" height="150" /></a></..."

Bad value “/-/media/Images/Astro dad gifts 2020/socksastrogiftdad.png?mw=200” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 531 Column: 973 - 1100
"...kygazing"><img src="/-/media/Images/Astro dad gifts 2020/socksastrogiftdad.png?mw=200" alt="socksastrogiftdad" width="200" height="120" /></a></..."

Bad value “/-/media/Images/Magazine/Trips Tours/2020 South Pacific/Tahiti.jpg?mw=200” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 533 Column: 123 - 247
"...-pacific"><img src="/-/media/Images/Magazine/Trips Tours/2020 South Pacific/Tahiti.jpg?mw=200" alt="Tahiti" width="200" height="141" /></a></..."

Bad value “/-/media/Images/Magazine/Trips Tours/2020Argentina/2012ARG_BEAUTY.jpg?mw=200” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 533 Column: 907 - 1042
"...pse-tour"><img src="/-/media/Images/Magazine/Trips Tours/2020Argentina/2012ARG_BEAUTY.jpg?mw=200" alt="2012ARG_BEAUTY" width="200" height="133" /></a></..."

Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Line: 570 Column: 67 - 70
"...w us:</li><br><li><a..." Line: 662 Column: 65 - 68
"...w us:</li><br><li><a..."

Bad value “/-/media/Images/Magazine Articles/2020/05/ASYER0520_03.png?mw=130” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 603 Column: 367 - 489
"...rocamera"><img src="/-/media/Images/Magazine Articles/2020/05/ASYER0520_03.png?mw=130" alt="ASYER0520_03" width="130" height="107" /></a></..."

Bad value “/-/media/Images/Magazine Articles/2020/02/ASYER0220_01.jpg?mw=130” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 603 Column: 829 - 950
"...noculars"><img src="/-/media/Images/Magazine Articles/2020/02/ASYER0220_01.jpg?mw=130" alt="ASYER0220_01" width="130" height="89" /></a></..."

Bad value “/-/media/Images/Magazine Articles/2019/May/binoculars.png?mw=130” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 603 Column: 1278 - 1397
"...noculars"><img src="/-/media/Images/Magazine Articles/2019/May/binoculars.png?mw=130" alt="binoculars" width="130" height="147" /></a></..."

Bad value “/-/media/Images/Magazine Articles/2019/February/Carnonadoscope.png?mw=400” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 603 Column: 2068 - 2200
"...ar-scope"><img src="/-/media/Images/Magazine Articles/2019/February/Carnonadoscope.png?mw=400" alt="Carnonadoscope" width="400" height="257" /></a></..."

Bad value “/-/media/Images/Videos/Astro News Bytes/PlasmaLensedPulsar.png?mw=400” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 608 Column: 308 - 440
"...d-pulsar"><img src="/-/media/Images/Videos/Astro News Bytes/PlasmaLensedPulsar.png?mw=400" alt="PlasmaLensedPulsar" width="400" height="225" /></a></..."

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

Line: 633 Column: 340 - 412
"...916.aspx"><table cellspacing="0" cellpadding="0" width="100%" style="height:100%;"><tr><t..." Line: 633 Column: 894 - 966
"...915.aspx"><table cellspacing="0" cellpadding="0" width="100%" style="height:100%;"><tr><t..." Line: 633 Column: 1442 - 1514
"...914.aspx"><table cellspacing="0" cellpadding="0" width="100%" style="height:100%;"><tr><t..." Line: 633 Column: 1964 - 2036
"...913.aspx"><table cellspacing="0" cellpadding="0" width="100%" style="height:100%;"><tr><t..." Line: 633 Column: 2478 - 2550
"...912.aspx"><table cellspacing="0" cellpadding="0" width="100%" style="height:100%;"><tr><t..."

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

The “width” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “td” element is obsolete. Use CSS instead.

Line: 633 Column: 417 - 435
"...00%;"><tr><td align="center"><img s..." Line: 633 Column: 971 - 989
"...00%;"><tr><td align="center"><img s..." Line: 633 Column: 1519 - 1537
"...00%;"><tr><td align="center"><img s..." Line: 633 Column: 2041 - 2059
"...00%;"><tr><td align="center"><img s..." Line: 633 Column: 2555 - 2573
"...00%;"><tr><td align="center"><img s..."

Warnings

Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.

Line: 5 Column: 122 - 75
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://ogp.me/ns/fb#"> <head..."

Consider avoiding viewport values that prevent users from resizing documents.

Line: 8 Column: 2150 - 2259
"...my.com" /><meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0" /><link ..."

The “type” attribute is unnecessary for JavaScript resources.

Line: 22 Column: 5 - 106
"..."/> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></scri..." Line: 23 Column: 5 - 91
"...ript> <script type="text/javascript" src="//secure.kalmbach.com/kserv/libs/jquery.backup.js"></scri..." Line: 25 Column: 5 - 83
"...ipt> <script type="text/javascript" src="/sitefiles/scripts/jquery.colorbox-min.js"></scri..." Line: 26 Column: 5 - 93
"...ript> <script type="text/javascript" src="https://secure.kalmbach.com/kserv/libs/kserv.min.js"></scri..." Line: 33 Column: 7 - 83
"... <script type="text/javascript" src="/sitefiles/scripts/jquery.mousewheel.js"></scri..." Line: 34 Column: 7 - 88
"...pt> <script type="text/javascript" src="/sitefiles/scripts/jquery.jscrollpane.min.js"></scri..." Line: 40 Column: 5 - 35
"...f]--> <script type="text/javascript">var ad..." Line: 41 Column: 5 - 108
"...ript> <script type="text/javascript" src="https://s7.addthis.com/js/300/addthis_widget.js#pubid=astronomymag"></scri..." Line: 48 Column: 1 - 31
"... --> <script type="text/javascript"> (..." Line: 63 Column: 1 - 31
"...</script> <script type='text/javascript'> v..." Line: 78 Column: 1 - 31
".../script> <script type='text/javascript'> g..." Line: 109 Column: 1 - 31
".../script> <script type="text/javascript"> $..." Line: 114 Column: 5 - 78
"...n" /> <script type="text/javascript" src="/sitefiles/scripts/jquery.blockui.js"></scri..." Line: 226 Column: 70 - 100
"...289407-0"><script type="text/javascript"> goo..." Line: 458 Column: 55 - 85
"...289407-1"><script type="text/javascript"> ..." Line: 542 Column: 125 - 155
"...668453-0"><script type="text/javascript"> g..." Line: 575 Column: 119 - 149
"...289407-3"><script type="text/javascript"> ..." Line: 578 Column: 119 - 149
"...289407-4"><script type="text/javascript"> ..." Line: 677 Column: 13 - 43
"... <script type="text/javascript"> ..." Line: 688 Column: 9 - 172
"...> <script src="http://contentz.mkt932.com/lp/static/js/iMAWebCookie.js?d1e832-1153df92d7e-f528764d624db129b32c21fbca0cb8d6&h=www.pages03.net" type="text/javascript"></scrip..." Line: 691 Column: 9 - 39
"...> <script type="text/javascript"> ..."

Empty heading.

Line: 484 Column: 374 - 622
"..."content"><h1 class="headline" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 27px; font-family: "pt sans", helvetica, arial, sans-serif; margin: 0px; padding: 0px; background-color: #ffffff;"></h1> ..." Line: 495 Column: 316 - 564
"...e Era</h4><h1 class="headline" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 27px; font-family: "pt sans", helvetica, arial, sans-serif; margin: 0px; padding: 0px; background-color: #ffffff;"></h1> ..."

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 706 Column: 51 - 158
"...ay:none;"><img src="//pixel.quantserve.com/pixel/p-am3ScffEdUHwZ.gif" border="0" height="1" width="1" alt="Quantcast"></div>..."

Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.

Line: 5 Column: 122 - 75
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://ogp.me/ns/fb#"> <head..."

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astronomy.com Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.

astronomy.com TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.

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Enable compression for the following resources to reduce their transfer size by 333.6KiB (72% reduction).

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Remove render-blocking JavaScript:

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Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Attribute “xmlns:fb” not allowed here.

Bad value “http://fonts.googleapis.com/css?family=PT+Sans:400,700,400italic,700italic|PT+Sans+Narrow:400,700” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.

Bad value “handheld, only screen and (max-width:450px)” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

Element “meta” is missing required attribute “content”.

Bad start tag in “img” in “head”.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Stray end tag “noscript”.

Stray end tag “head”.

Start tag “body” seen but an element of the same type was already open.

Bad value “/-/media/Images/Magazine Covers/2020/maycover2.png?mh=240” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.

Bad value “/-/media/Images/News and Observing/News/2020/05/spaceXcrewdragonlaunch.jpg?mw=300” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

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Bad value “/-/media/Images/Photo of Day/Large Images/2020/06/APOD20200601.jpg?mw=300” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

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