EXPLAINEXTENDED.COM EXPLAIN EXTENDED - How to create fast database queries at EXPLAIN EXTENDED

explainextended.com Website Information

Daily Unique Visits: 2,654

Daily Page Views: 7,962

Income Per Day: $24

Estimated Value: $8,640

This website is located in Russian Federation and is using following IP address 212.193.239.244. See the complete list of popular websites hosted in Russian Federation.

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

Website explainextended.com is using the following name servers:

  • ns3-l2.nic.ru
  • ns4-l2.nic.ru
  • ns8-l2.nic.ru
  • ns4-cloud.nic.ru
  • ns8-cloud.nic.ru

and is probably hosted by JSC "RU-CENTER". See the full list of other websites hosted by JSC "RU-CENTER".

The highest website explainextended.com position in Alexa rank database was 36877 and the lowest rank position was 996655. Current position of explainextended.com in Alexa rank database is 405315.

Desktop speed score of explainextended.com (57/100) is better than the results of 31.79% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of explainextended.com (64/100) is better than the results of 11.2% of other sites and means that the page is not mobile-friendly.

Mobile speed score of explainextended.com (48/100) is better than the results of 30.32% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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explainextended.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.


explainextended.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: EXPLAINEXTENDED.COM
Registry Domain ID: 1544677218_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.nic.ru
Registrar URL: http://nic.ru
Updated Date: 2024-02-27T23:23:15Z
Creation Date: 2009-02-28T12:55:16Z
Registry Expiry Date: 2025-02-28T12:55:16Z
Registrar: Regional Network Information Center, JSC dba RU-CENTER
Registrar IANA ID: 463
Registrar Abuse Contact Email: tld-abuse@nic.ru
Registrar Abuse Contact Phone: +74950091333
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS3-L2.NIC.RU
Name Server: NS4-CLOUD.NIC.RU
Name Server: NS4-L2.NIC.RU
Name Server: NS8-CLOUD.NIC.RU
Name Server: NS8-L2.NIC.RU
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-10-08T18:04:58Z

explainextended.com server information

Servers Location

explainextended.com desktop page speed rank

Last tested: 2019-08-13


Desktop Speed Bad
57/100

explainextended.com Desktop Speed Test Quick Summary


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priority - 23Optimize images

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priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content

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Optimize CSS Delivery of the following:

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priority - 8Leverage browser caching

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priority - 3Minify JavaScript

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priority - 0Minify CSS

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explainextended.com Desktop Resource Breakdown

Total Resources100
Number of Hosts11
Static Resources23
JavaScript Resources58
CSS Resources10

explainextended.com mobile page speed rank

Last tested: 2018-11-19


Mobile Speed Bad
48/100

explainextended.com Mobile Speed Test Quick Summary


priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

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https://explainextended.com/wp-includes/js/jquery/…grate.min.js?ver=1.4.1
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Optimize CSS Delivery of the following:

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priority - 31Enable compression

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priority - 23Optimize images

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priority - 16Leverage 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:

https://explainextended.com/wp-content/plugins/syn…/scripts/shBrushSql.js (expiration not specified)
https://explainextended.com/wp-content/plugins/syn…hlighter/src/shCore.js (expiration not specified)
https://explainextended.com/wp-content/plugins/syn…ighter/styles/help.png (expiration not specified)
https://explainextended.com/wp-content/plugins/syn…es/page_white_code.png (expiration not specified)
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https://explainextended.com/wp-content/themes/jour…images/bubble_left.gif (expiration not specified)
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https://explainextended.com/wp-content/themes/journalist/images/quote.gif (expiration not specified)
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https://explainextended.com/wp-content/themes/journalist/style.css (expiration not specified)
https://explainextended.com/wp-content/uploads/201…7_o-e1382987392809.jpg (expiration not specified)
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https://explainextended.com/wp-content/uploads/201…56913_1c0bfd6923_b.jpg (expiration not specified)
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https://explainextended.com/wp-content/uploads/2016/12/vizier.jpg (expiration not specified)
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https://explainextended.com/wp-includes/images/email-icon-14x14.png (expiration not specified)
https://explainextended.com/wp-includes/images/rss.png (expiration not specified)
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https://www.google-analytics.com/analytics.js (2 hours)

priority - 6Reduce server response time

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explainextended.com Mobile Resource Breakdown

Total Resources76
Number of Hosts11
Static Resources28
JavaScript Resources30
CSS Resources11

explainextended.com mobile page usability

Last tested: 2018-11-19


Mobile Usability Bad
64/100

explainextended.com Mobile Usability Test Quick Summary


priority - 40Use 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.

How to create…tabase queries renders only 4 pixels tall (11 CSS pixels).

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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 - 9Size 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="https://explai…py-new-year-9/">Happy New Year!</a> and 5 others are close to other tap targets.

The tap target <a href="https://explai…ear-9/#respond">Comments enabl…d your comment</a> and 9 others are close to other tap targets.

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The tap target <a href="/2010/12/31/happy-new-year-2/">clocks</a> and 3 others are close to other tap targets.
The tap target <a href="#viewSource" class="item viewSource">view source</a> and 1 others are close to other tap targets.
The tap target <a href="#printSource" class="item printSource">print</a> and 1 others are close to other tap targets.
The tap target <a href="#about" class="item about">?</a> and 1 others are close to other tap targets.
The tap target <a href="http://feeds.f…xplainextended">Subscribe in a reader</a> and 3 others are close to other tap targets.

The tap target <a href="/ask-a-question">Ask me a question</a> and 1 others are close to other tap targets.

The tap target <a href="https://explai…py-new-year-9/">Happy New Year!</a> and 55 others are close to other tap targets.

explainextended.com HTML validation

Errors

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

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

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Line: 3 Column: 88 - 39
"...p.me/ns#"> <head profile="http://gmpg.org/xfn/11"> <titl..."

Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.

Line: 58 Column: 1 - 77
"...</script> <link rel='https://api.w.org/' href='https://explainextended.com/wp-json/' /> <link..."

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

Line: 515 Column: 10 - 8
"... </tfoot> <tbody> <tr>..."

Bad value “designer” for attribute “rel” on element “a”: The string “designer” is not a registered keyword.

Line: 602 Column: 32 - 80
"...mplate by <a href="http://lucianmarin.com/" rel="designer">Lucian..."

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explainextended.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.


explainextended.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.