rosalind.info Website Information
Daily Unique Visits: 228,774
Daily Page Views: 1,830,192
Income Per Day: $1,830
Estimated Value: $1,976,400
This website is located in Netherlands and is using following IP address 13.94.194.131. See the complete list of popular websites hosted in Netherlands.
rosalind.info is registered under .INFO top-level domain. Please check other sites in .INFO zone.
Website rosalind.info is using the following name servers:
- ns08.domaincontrol.com
- ns07.domaincontrol.com
and is probably hosted by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US. See the full list of other websites hosted by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US.
The highest website rosalind.info position in Alexa rank database was 4556 and the lowest rank position was 6666. Current position of rosalind.info in Alexa rank database is 6661.
Desktop speed score of rosalind.info (83/100) is better than the results of 76.15% of other sites and shows that the page is performing great on desktop computers.
Mobile usability score of rosalind.info (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
Mobile speed score of rosalind.info (69/100) is better than the results of 74.36% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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rosalind.info 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.
rosalind.info 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: ROSALIND.INFO
Registry Domain ID: D46591508-LRMS
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2020-05-27T01:29:22Z
Creation Date: 2012-05-26T11:20:41Z
Registry Expiry Date: 2021-05-26T11:20:41Z
Registrar Registration Expiration Date:
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Reseller:
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
Registrant Organization:
Registrant State/Province: Massachusetts
Registrant Country: US
Name Server: NS07.DOMAINCONTROL.COM
Name Server: NS08.DOMAINCONTROL.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2021-05-23T16:52:58Z
Registry Domain ID: D46591508-LRMS
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2020-05-27T01:29:22Z
Creation Date: 2012-05-26T11:20:41Z
Registry Expiry Date: 2021-05-26T11:20:41Z
Registrar Registration Expiration Date:
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Reseller:
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
Registrant Organization:
Registrant State/Province: Massachusetts
Registrant Country: US
Name Server: NS07.DOMAINCONTROL.COM
Name Server: NS08.DOMAINCONTROL.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2021-05-23T16:52:58Z
rosalind.info server information
Servers Location
rosalind.info desktop page speed rank
Last tested: 2019-01-12
Desktop Speed
Medium
83/100
rosalind.info Desktop Speed Test Quick Summary
priority - 7Leverage 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://rosalind.info/static/css/rosalind.pack.min.css?v=1526042457 (60 minutes)
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priority - 6Eliminate render-blocking JavaScript and CSS in above-the-fold content
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priority - 3Avoid landing page redirects
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priority - 0Minify CSS
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priority - 0Minify JavaScript
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priority - 0Minify HTML
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rosalind.info Desktop Resource Breakdown
| Total Resources | 27 |
| Number of Hosts | 5 |
| Static Resources | 23 |
| JavaScript Resources | 9 |
| CSS Resources | 2 |
rosalind.info mobile page speed rank
Last tested: 2019-01-12
Mobile Speed
Medium
69/100
rosalind.info Mobile Speed Test Quick Summary
priority - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
http://rosalind.info/static/css/rosalind.pack.min.css?v=1526042457
http://ajax.googleapis.com/ajax/libs/jqueryui/1.10…mes/base/jquery-ui.css
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priority - 10Leverage 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://rosalind.info/static/css/rosalind.pack.min.css?v=1526042457 (60 minutes)
http://rosalind.info/static/img/close.png (60 minutes)
http://rosalind.info/static/img/facebook.png (60 minutes)
http://rosalind.info/static/img/loading.gif (60 minutes)
http://rosalind.info/static/img/locations/algorith…ights.png?v=1526042457 (60 minutes)
http://rosalind.info/static/img/locations/bioinfor…rmory.png?v=1526042457 (60 minutes)
http://rosalind.info/static/img/locations/bioinfor…ghold.png?v=1526042457 (60 minutes)
http://rosalind.info/static/img/locations/bioinfor…track.png?v=1526042457 (60 minutes)
http://rosalind.info/static/img/locations/python-village.png?v=1526042457 (60 minutes)
http://rosalind.info/static/img/logo.png?v=1526042457 (60 minutes)
http://rosalind.info/static/img/twitter.png (60 minutes)
http://rosalind.info/static/img/x-close-button.png (60 minutes)
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priority - 10Avoid landing page redirects
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priority - 2Optimize images
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Compressing http://rosalind.info/static/img/locations/algorith…ights.png?v=1526042457 could save 1.2KiB (56% reduction).
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priority - 0Minify CSS
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Minify CSS for the following resources to reduce their size by 1.3KiB (23% reduction).
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priority - 0Minify JavaScript
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priority - 0Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 620B (16% reduction).
Minifying http://rosalind.info/problems/locations/ could save 620B (16% reduction) after compression.
rosalind.info Mobile Resource Breakdown
| Total Resources | 27 |
| Number of Hosts | 5 |
| Static Resources | 23 |
| JavaScript Resources | 9 |
| CSS Resources | 2 |
rosalind.info mobile page usability
Last tested: 2019-01-12
Mobile Usability
Good
99/100
rosalind.info Mobile Usability Test Quick Summary
priority - 1Size 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 id="usrFeedbackButton" href="javascript: void(0);" class="usr-feedback-button vert right">FEEDBACK</a> is close to 1 other tap targets.The tap target
<a href="/problems/list…textbook-track">Textbook Track</a> and 1 others are close to other tap targets.rosalind.info HTML validation
Errors
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Line: 45 Column: 37 - 83
"... href="/"><img src="/static/img/logo.png?v=1494491665" /></a> ..." Line: 144 Column: 25 - 107
"... <img class="picture" src="/static/img/locations/python-village.png?v=1494491665" /> ..." Line: 156 Column: 25 - 118
"... <img class="picture" src="/static/img/locations/bioinformatics-stronghold.png?v=1494491665" /> ..." Line: 168 Column: 25 - 114
"... <img class="picture" src="/static/img/locations/bioinformatics-armory.png?v=1494491665" /> ..." Line: 180 Column: 25 - 122
"... <img class="picture" src="/static/img/locations/bioinformatics-textbook-track.png?v=1494491665" /> ..." Line: 192 Column: 25 - 112
"... <img class="picture" src="/static/img/locations/algorithmic-heights.png?v=1494491665" /> ..."
"... href="/"><img src="/static/img/logo.png?v=1494491665" /></a> ..." Line: 144 Column: 25 - 107
"... <img class="picture" src="/static/img/locations/python-village.png?v=1494491665" /> ..." Line: 156 Column: 25 - 118
"... <img class="picture" src="/static/img/locations/bioinformatics-stronghold.png?v=1494491665" /> ..." Line: 168 Column: 25 - 114
"... <img class="picture" src="/static/img/locations/bioinformatics-armory.png?v=1494491665" /> ..." Line: 180 Column: 25 - 122
"... <img class="picture" src="/static/img/locations/bioinformatics-textbook-track.png?v=1494491665" /> ..." Line: 192 Column: 25 - 112
"... <img class="picture" src="/static/img/locations/algorithmic-heights.png?v=1494491665" /> ..."
Attribute “rel” not allowed on element “span” at this point.
Line: 206 Column: 21 - 99
"... <li><span rel="tooltip" title="Select a typo with your mouse and press Ctrl+Enter">Found ..."
"... <li><span rel="tooltip" title="Select a typo with your mouse and press Ctrl+Enter">Found ..."
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Line: 302 Column: 5 - 51
"...ript> <script type="text/javascript" charset="utf-8"> ..." Line: 306 Column: 5 - 51
"...ript> <script type="text/javascript" charset="utf-8"> ..."
"...ript> <script type="text/javascript" charset="utf-8"> ..." Line: 306 Column: 5 - 51
"...ript> <script type="text/javascript" charset="utf-8"> ..."
Warnings
Empty heading.
Line: 286 Column: 13 - 16
"... <h3></h3> ..."
"... <h3></h3> ..."
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rosalind.info 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.
rosalind.info 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.