Worldcat.org WorldCat.org

WorldCat.org is a global catalog of library materials. You can search for books, music, video, articles and much more at libraries near you.

Worldcat.org Overview

When it comes to finding books and other materials in libraries around the world, WorldCat.org is the go-to resource for millions of people every day. This website bills itself as the world's largest library catalog, and with good reason: it aggregates information about more than 2 billion items from over 10,000 libraries worldwide. The user-friendly search function allows visitors to quickly find what they're looking for, whether it's a rare manuscript, a bestseller, or even a DVD.

WorldCat.org is a well-established website with a strong reputation for reliability, accuracy, and accessibility. It attracts an impressive 63,590 unique users per day, who generate around 139,898 pageviews on average. These statistics underscore the site's popularity and usefulness for anyone who needs to locate resources in any library system worldwide.

To ensure seamless user experience, WorldCat.org is hosted by CLOUDFLARENET - Cloudflare, Inc., a trusted provider of web infrastructure and security solutions. The site uses an SSL certificate issued by DigiCert Inc., indicating that all data transmitted between the user's device and the site's servers is encrypted and secure.

Another noteworthy aspect of WorldCat.org is that it is a family-friendly site. There is no adult content or material that could be inappropriate for children, making it an ideal resource for parents, teachers, and students of all ages.

In terms of technical performance, PageSpeed Insights scores WorldCat.org's speed at 66, indicating that there is some room for improvement in this area. However, given the complexity and sheer volume of data involved in this site's operation, this score is still relatively good. WorldCat.org is designed to be fast, efficient, and easy to use, with intuitive navigation, clear labeling, and helpful feedback for users.

Overall, WorldCat.org is a valuable and reliable resource for anyone who needs to find information in libraries worldwide. Its user-friendly design, powerful search engine, and vast array of data make it an ideal tool for researchers, scholars, students, and book lovers everywhere.

Worldcat.org Rank Summary

Global Rank

4,901

Average Load Time

1.41sec

Links In Count

9,467

Website Value

$1.8 M

Audience Geography. Where are worldcat.org visitors located?

Country	Visitors
United States US	29.1%
India IN	6.4%
South Africa ZA	6.2%
Canada CA	4%
Mexico MX	2.7%
Australia AU	2.5%
Ethiopia ET	1.8%
Indonesia ID	1.7%
Egypt EG	1.4%
Other	44.3%

Country	Pageviews
United States US	25.2%
South Africa ZA	7.7%
India IN	5.8%
Canada CA	4.5%
Mexico MX	3.8%
Australia AU	3.2%
Egypt EG	2.5%
Turkey TR	2.3%
Saudi Arabia SA	1.7%
Other	43.4%

Country	Rank
Ethiopia ET	344
South Africa ZA	486
Kenya KE	1118
Canada CA	2087
Singapore SG	2226
Australia AU	2588
Peru PE	2820
United Arab Emirates AE	2893
United States US	3266
Philippines PH	3481
Malaysia MY	3509
Mexico MX	3764

Where do visitors go on worldcat.org?

Subdomain	Pageviews
worldcat.org	70.6%
on.worldcat.org	18.09%
sd02.worldcat.org	4.42%
authn.worldcat.org	2.07%
sd00.worldcat.org	1.51%
account.worldcat.org	1.41%
share.worldcat.org	0.96%
sd04.worldcat.org	0.56%
sd03.worldcat.org	0.22%
other	0.16%

Subdomain	Pageviews per User
sd04.worldcat.org	3
on.worldcat.org	2.4
worldcat.org	2.3
sd03.worldcat.org	2
account.worldcat.org	2
sd02.worldcat.org	2
authn.worldcat.org	1.9
sd00.worldcat.org	1.6
share.worldcat.org	1.3

Subdomain	Reach
worldcat.org	79.49%
on.worldcat.org	19.66%
sd02.worldcat.org	5.32%
authn.worldcat.org	2.89%
sd00.worldcat.org	2.4%
account.worldcat.org	2.28%
share.worldcat.org	1.93%
sd04.worldcat.org	0.54%
sd03.worldcat.org	0.29%

How popular is worldcat.org?

Period	Global Rank	Global Rank Delta
past 3 months	4901	1111
past month	4483	-1038
past week	3644	-508
yesterday	9190	6122

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	7960	1420	774	-14.74%	2.2	3%
30	6634	-2740	94	45%	2.6	30%
7	5298	-778	12	10%	2.8	1%
1	21827	17656	34	-78.741%	1	-59.568%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	4338	991	150	-17.33%
30	4216	-574	160	20%
7	3513	-478	190	10%
1	7110	3871	120	-47.29%

Worldcat.org Website Safety

Overview

Last Updated: 11/25/2024

Overall result - worldcat.org is safe.

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Last Updated: 03/21/2024

worldcat.org is safe.

Norton ConnectSafe evaluates worldcat.org for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 10/10/2016

worldcat.org is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

worldcat.org is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 02/22/2021

worldcat.org is safe.

McAfee assesses worldcat.org for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze worldcat.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

worldcat.org child safety is very good.

The WOT calculates reputation of the worldcat.org. This reputation system receives ratings from users and information from third-party sources, assesses the worldcat.org for safety features and confirms, whether worldcat.org is suitable for children.

SSL Information

SSL Checker Tool

Domain	worldcat.org
Issuer Organization	Google Trust Services
Issuer	WR1
Algorithm	RSA-SHA256
Valid form	09/25/2024
Expiration	12/25/2024
Signed	Certificate is not self signed
Additional Domains	worldcat.org .worldcat.org .sd02-sandbox.worldcat.org .sd03-sandbox.worldcat.org .sd04-sandbox.worldcat.org .sd00.worldcat.org .sd02.worldcat.org .sd03.worldcat.org .sd04.worldcat.org .share.worldcat.org .authn.worldcat.org .account.worldcat.org .platform.worldcat.org .on.worldcat.org .account-sandbox.worldcat.org .authn-sandbox.worldcat.org link-sandbox.worldcat.org .on-sandbox.worldcat.org .platform-sandbox.worldcat.org .sandbox.worldcat.org .sd00-sandbox.worldcat.org .share-sandbox.worldcat.org

Worldcat.org Rank History

Alexa Rank shows how popular worldcat.org is in comparison with other sites. The most popular site has Alexa Rank equals 1. If worldcat.org has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to worldcat.org and pageviews on worldcat.org over the past 3 months.

Worldcat.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 13335

ASN Title: CLOUDFLARENET - Cloudflare, Inc., US

Last Update: 07/07/2024

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 13335
ASName: CLOUDFLARENET
ASHandle: AS13335
RegDate: 2010-07-14
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/autnum/13335

OrgName: Cloudflare, Inc.
OrgId: CLOUD14
Address: 101 Townsend Street
City: San Francisco
StateProv: CA
PostalCode: 94107
Country: US
RegDate: 2010-07-09
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/entity/CLOUD14

OrgTechHandle: ADMIN2521-ARIN
OrgTechName: Admin
OrgTechPhone: +1-650-319-8930
OrgTechEmail: rir@cloudflare.com
OrgTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

OrgAbuseHandle: ABUSE2916-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-650-319-8930
OrgAbuseEmail: abuse@cloudflare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

OrgNOCHandle: NOC11962-ARIN
OrgNOCName: NOC
OrgNOCPhone: +1-650-319-8930
OrgNOCEmail: noc@cloudflare.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RNOCHandle: NOC11962-ARIN
RNOCName: NOC
RNOCPhone: +1-650-319-8930
RNOCEmail: noc@cloudflare.com
RNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RTechHandle: ADMIN2521-ARIN
RTechName: Admin
RTechPhone: +1-650-319-8930
RTechEmail: rir@cloudflare.com
RTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

RAbuseHandle: ABUSE2916-ARIN
RAbuseName: Abuse
RAbusePhone: +1-650-319-8930
RAbuseEmail: abuse@cloudflare.com
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Worldcat.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: worldcat.org
Registry Domain ID: 406b5d7e9c69451581107554a4b27c21-LROR
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com
Updated Date: 2022-06-18T05:31:42Z
Creation Date: 1998-01-21T05:00:00Z
Registry Expiry Date: 2028-01-20T05:00:00Z
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: domain.operations@web.com
Registrar Abuse Contact Phone: +1.8777228662
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: OCLC Online Computer Library Center, Inc
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: OH
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: michelle.ns.cloudflare.com
Name Server: nico.ns.cloudflare.com
DNSSEC: signedDelegation
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-09T11:41:49Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
worldcat.org	132.174.0.31	60

Host	MX Record	Priority	TTL

Host	NS Record	TTL
worldcat.org	dns-r1.oclc.org	3600
worldcat.org	ddisy01pac1.shr.oclc.org	3600
worldcat.org	dns.oclc.org	3600
worldcat.org	dns2.oclc.org	3600
worldcat.org	dns4.oclc.org	3600

Host	TXT Record	TTL

gmvip01sac1.shr.oclc.org
TTL: 3600
Email address: netadm.oclc.org
Serial: 2018053704
Refresh: 10800
Retry: 3600
Expire: 2419200
Minimum: 900

Worldcat.org HTML Check

HTML Validation Tool

Errors

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

Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.

Bad value “content-script-type” for attribute “http-equiv” on element “meta”.

Bad value “content-style-type” for attribute “http-equiv” on element “meta”.

The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.

The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “&” instead.

No space between attributes.

End tag “div” seen, but there were open elements.

Unclosed element “form”.

Stray end tag “form”.

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

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

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

The “valign” attribute on the “tr” element is obsolete. Use CSS instead.

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

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

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

Bad value “/tags/vermont college of fine arts” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/available online” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/fr tom books” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/jack schwem cds” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/cello music collections at uncg” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/social emotional” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/satirical non-fiction” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/exhibition catalog” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/estudos portugueses” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/luigi silva cello music collection” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/young adult” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/diabetes and you naheed ali” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/luigi silva” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/marjane satrapi” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/pepperdine law dvds” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “/tags/portuguese studies” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “” for attribute “action” on element “form”: Must be non-empty.

Warnings

The “language” attribute on the “script” element is obsolete. You can safely omit it.

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

The value of attribute “title” on element “a” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.

Text run is not in Unicode Normalization Form C.

Worldcat.org Desktop Performance

Last tested: 12/02/2019

Desktop Speed

84%

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

Leverage browser caching

Optimize images

Minify JavaScript

Minify CSS

Minify HTML

Desktop Resource Breakdown

Total Resources	79
Number of Hosts	12
Static Resources	67
JavaScript Resources	21
CSS Resources	16

Worldcat.org Mobile Insights

Last tested: 12/02/2019

Mobile Usability

63%

Use legible font sizes

Size tap targets appropriately

Mobile Speed

66%

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

Leverage browser caching

Optimize images

Minify JavaScript

Minify CSS

Minify HTML

Mobile Resource Breakdown

Total Resources	80
Number of Hosts	12
Static Resources	67
JavaScript Resources	21
CSS Resources	16

Worldcat.org Common Typos

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Worldcat.org WorldCat.org

WorldCat.org is a global catalog of library materials. You can search for books, music, video, articles and much more at libraries near you.

Worldcat.org Overview

Worldcat.org Rank Summary

Worldcat.org Website Safety

Worldcat.org Rank History

Worldcat.org Hosting Information

Worldcat.org Domain Registration and Settings

Worldcat.org HTML Check

Worldcat.org Desktop Performance

Worldcat.org Mobile Insights

Worldcat.org Similar Audits

Worldcat.org Common Typos