SOCIALHISTORY.ORG IISG | International Institute of Social History

socialhistory.org Website Information

Daily Unique Visits: 12,647

Daily Page Views: 63,235

Income Per Day: $158

Estimated Value: $94,800

This website is located in Netherlands and is using following IP address 195.169.88.174. See the complete list of popular websites hosted in Netherlands.

socialhistory.org is registered under .ORG top-level domain. Please check other sites in .ORG zone.

Website socialhistory.org is using the following name servers:

  • ns0.socialhistoryservices.org
  • ns1.surfnet.nl
  • ns1.zurich.surf.net

and is probably hosted by SURFnet bv. See the full list of other websites hosted by SURFnet bv.

The highest website socialhistory.org position in Alexa rank database was 54098 and the lowest rank position was 997673. Current position of socialhistory.org in Alexa rank database is 107735.

Desktop speed score of socialhistory.org (73/100) is better than the results of 56.16% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of socialhistory.org (89/100) is better than the results of 31.01% of other sites and means that the page is mobile-friendly.

Mobile speed score of socialhistory.org (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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socialhistory.org 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.


socialhistory.org 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: SOCIALHISTORY.ORG
Registry Domain ID: D156502475-LROR
Registrar WHOIS Server: whois.publicdomainregistry.com
Registrar URL: http://www.publicdomainregistry.com
Updated Date: 2021-06-10T06:45:16Z
Creation Date: 2009-06-24T14:30:46Z
Registry Expiry Date: 2022-06-24T14:30:46Z
Registrar Registration Expiration Date:
Registrar: PDR Ltd. d/b/a PublicDomainRegistry.com
Registrar IANA ID: 303
Registrar Abuse Contact Email: abuse@publicdomainregistry.com
Registrar Abuse Contact Phone: +1.2013775952
Reseller:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registrant Organization: GDPR Masked
Registrant State/Province:
Registrant Country: NL
Name Server: NS1.SURFNET.NL
Name Server: NS1.ZURICH.SURF.NET
Name Server: NS0.SOCIALHISTORYSERVICES.ORG
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2021-12-09T21:59:58Z

socialhistory.org server information

Servers Location

socialhistory.org desktop page speed rank

Last tested: 2019-01-26


Desktop Speed Medium
73/100

socialhistory.org Desktop Speed Test Quick Summary


priority - 15Leverage 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:

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priority - 11Optimize images

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priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 5 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

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priority - 2Minify JavaScript

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socialhistory.org Desktop Resource Breakdown

Total Resources47
Number of Hosts3
Static Resources31
JavaScript Resources6
CSS Resources6

socialhistory.org mobile page speed rank

Last tested: 2019-01-26


Mobile Speed Medium
69/100

socialhistory.org Mobile Speed Test Quick Summary


priority - 23Leverage 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:

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https://socialhistory.org/sites/all/themes/iisg/images/banner-orange.png (expiration not specified)
https://socialhistory.org/sites/all/themes/iisg/images/browse-bg.png (expiration not specified)
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https://www.google-analytics.com/analytics.js (2 hours)

priority - 11Optimize images

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priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

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priority - 2Minify JavaScript

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socialhistory.org Mobile Resource Breakdown

Total Resources47
Number of Hosts3
Static Resources31
JavaScript Resources6
CSS Resources6

socialhistory.org mobile page usability

Last tested: 2019-01-26


Mobile Usability Good
89/100

socialhistory.org Mobile Usability Test Quick Summary


priority - 10Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 470 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:

The element <h2 class="node-title">De Wim Kok Tapes</h2> falls outside the viewport.
The element <img src="https://social…?itok=Qgj9wHun" class="media-image"> falls outside the viewport.
The element <ul class="links inline">+ more about De Wim Kok Tapes</ul> falls outside the viewport.
The element <a href="/en/educatie/d…derlands-indie">De geschiedeni…derlands-Indië</a> falls outside the viewport.
The element <p>Een lespakket</p> falls outside the viewport.
The element <ul class="links inline">+ more about D…derlands-Indië</ul> falls outside the viewport.
The element <span class="field-content">Students brows…ISH collection</span> falls outside the viewport.
The element <span id="views_slidesho…ueue_1-block_0" class="views-slidesho…w-first active">+</span> falls outside the viewport.
The element <span id="views_slidesho…ueue_1-block_1" class="views-slidesho…views-row-even">+</span> falls outside the viewport.
The element <span id="views_slidesho…ueue_1-block_2" class="views-slidesho…views-row-odd">+</span> falls outside the viewport.
The element <span id="views_slidesho…ueue_1-block_3" class="views-slidesho…views-row-even">+</span> falls outside the viewport.
The element <span id="views_slidesho…ueue_1-block_4" class="views-slidesho…views-row-last">+</span> falls outside the viewport.
The element <h3>International…Social History</h3> falls outside the viewport.
The element <p>The Internatio…s well. + more</p> falls outside the viewport.
The element <div class="view-empty">There are no v…een vacatures.</div> falls outside the viewport.
The element <div class="banner-blue">Book Blog</div> falls outside the viewport.

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 <input id="edit-custom-se…earchnode-key-" type="radio" name="custom_search_paths" class="form-radio"> and 1 others are close to other tap targets.

The tap target <label for="edit-custom-se…earchnode-key-" class="option">website</label> and 1 others are close to other tap targets.

The tap target <span id="views_slidesho…ueue_1-block_0" class="views-slidesho…w-first active">+</span> is close to 1 other tap targets.
The tap target <span id="views_slidesho…ueue_1-block_1" class="views-slidesho…views-row-even">+</span> and 3 others are close to other tap targets.
The tap target <a href="http://www.fac…Social.History"></a> and 5 others are close to other tap targets.

socialhistory.org HTML validation

Errors

Legacy doctype. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 54
"...<!DOCTYPE html PUBLIC "-//W3C//DTD HTML+RDFa 1.1//EN"> <html..."

Attribute “xmlns:content” not allowed here.

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

Attribute “xmlns:dc” not allowed here.

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

Attribute “xmlns:foaf” not allowed here.

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

Attribute “xmlns:og” not allowed here.

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

Attribute “xmlns:rdfs” not allowed here.

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

Attribute “xmlns:sioc” not allowed here.

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

Attribute “xmlns:sioct” not allowed here.

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

Attribute “xmlns:skos” not allowed here.

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

Attribute “xmlns:xsd” not allowed here.

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

The “version” attribute on the “html” element is obsolete. You can safely omit it.

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

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: 12 Column: 49 - 51
"...LSchema#"> <head profile="http://www.w3.org/1999/xhtml/vocab"> <me..."

Bad value “/en/staff/departments#research#research” for attribute “href” on element “a”: Illegal character in fragment: “#” is not allowed.

Line: 88 Column: 57 - 137
"...ts odd "><a href="/en/staff/departments#research#research" title="Research staff members">Resear..."

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

Line: 201 Column: 80 - 129
"...rst last"><a href="/nl" class="language-link" xml:lang="nl">Nederl..."

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

Line: 282 Column: 394 - 473
"...n> <img class="slideshow-overlay" src="/sites/all/themes/iisg/images/hook-red.png"> ..." Line: 303 Column: 351 - 433
"...n> <img class="slideshow-overlay" src="/sites/all/themes/iisg/images/hook-yellow.png"> ..." Line: 324 Column: 324 - 404
"...n> <img class="slideshow-overlay" src="/sites/all/themes/iisg/images/hook-blue.png"> ..." Line: 345 Column: 362 - 443
"...n> <img class="slideshow-overlay" src="/sites/all/themes/iisg/images/hook-brown.png"> ..." Line: 366 Column: 293 - 372
"...n> <img class="slideshow-overlay" src="/sites/all/themes/iisg/images/hook-red.png"> ..." Line: 590 Column: 387 - 442
"...t="blank"><img src="/sites/all/themes/iisg/images/facebook.png" /></a>  ..." Line: 590 Column: 508 - 562
"...t="blank"><img src="/sites/all/themes/iisg/images/twitter.png" /></a> <..." Line: 590 Column: 850 - 903
"...t="blank"><img src="/sites/all/themes/iisg/images/flickr.png" /></a>  ..." Line: 590 Column: 972 - 1027
"...t="blank"><img src="/sites/all/themes/iisg/images/linkedin.png" /></a>  ..." Line: 590 Column: 1104 - 1159
"...t="blank"><img src="/sites/default/files/youtube-favicon_0.png" /></a>  ..." Line: 590 Column: 1203 - 1253
"...t="blank"><img src="/sites/all/themes/iisg/images/rss.png" /></a></..."

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

Line: 328 Column: 64 - 66
"...-content"><p>What d..." Line: 349 Column: 64 - 66
"...-content"><p>Leo Lu..." Line: 370 Column: 64 - 66
"...-content"><p>Almost..."

Attribute “datatype” not allowed on element “span” at this point.

Line: 515 Column: 163 - 275
"...euw"><div><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-07-06T00:00:00+02:00">6 July..." Line: 519 Column: 139 - 251
"...ijt"><div><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-09-04T00:00:00+02:00">4 Sept..." Line: 523 Column: 137 - 249
"...cfp"><div><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-11-09T00:00:00+01:00">9 Nove..." Line: 527 Column: 193 - 304
"...ay-range"><span class="date-display-start" property="dc:date" datatype="xsd:dateTime" content="2019-05-09T00:00:00+02:00">9 May ..." Line: 527 Column: 326 - 435
".../span> to <span class="date-display-end" property="dc:date" datatype="xsd:dateTime" content="2019-05-11T00:00:00+02:00">11 May..." Line: 551 Column: 93 - 205
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="1839-07-02T00:00:00+00:19">2 July..."

Attribute “content” not allowed on element “span” at this point.

Line: 515 Column: 163 - 275
"...euw"><div><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-07-06T00:00:00+02:00">6 July..." Line: 519 Column: 139 - 251
"...ijt"><div><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-09-04T00:00:00+02:00">4 Sept..." Line: 523 Column: 137 - 249
"...cfp"><div><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-11-09T00:00:00+01:00">9 Nove..." Line: 527 Column: 193 - 304
"...ay-range"><span class="date-display-start" property="dc:date" datatype="xsd:dateTime" content="2019-05-09T00:00:00+02:00">9 May ..." Line: 527 Column: 326 - 435
".../span> to <span class="date-display-end" property="dc:date" datatype="xsd:dateTime" content="2019-05-11T00:00:00+02:00">11 May..." Line: 551 Column: 93 - 205
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="1839-07-02T00:00:00+00:19">2 July..."

The “for” attribute of the “label” element must refer to a non-hidden form control.

Line: 219 Column: 3 - 66
"...paths"> <label class="element-invisible" for="edit-custom-search-paths">Custom..."

Warnings

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

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

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

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

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

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

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

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

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

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

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

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

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

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

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

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

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

Line: 11 Column: 55 - 48
"... 1.1//EN"> <html lang="en" dir="ltr" version="HTML+RDFa 1.1" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <head..."

Empty heading.

Line: 67 Column: 25 - 46
"... <h1 class="site-name"><a hre..."

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Line: 207 Column: 7 - 68
"... <section id="section-content" class="section section-content"> <di..."

socialhistory.org similar domains

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socialhistory.org 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.


socialhistory.org 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.