Gilderlehrman.org Gilder Lehrman Institute of American History |

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Gilderlehrman.org Overview

When it comes to the Gilder Lehrman Institute of American History's website, gilderlehrman.org, it's important to understand both the content and structure of the site. This website is designed to be a resource for those who are interested in learning about American history, with a wealth of educational materials, research opportunities, and more.

In terms of the site's structure, it is hosted by FASTLY in the US, and has a Top Level Domain of .ORG. Additionally, the site uses SSL encryption certified by Let's Encrypt, which helps ensure that user data is kept secure while browsing the site.

One important consideration when it comes to any website is whether it is family-friendly, and the Gilder Lehrman Institute of American History's site certainly is. With a focus on educational resources, the site is designed to be accessible to people of all ages, including children.

Looking at the site's performance, it has 2698 unique users per day and 6475.2 pageviews, which indicates that there is a significant amount of interest in the content provided. Additionally, the site has been valued at 116800 US dollars, which speaks to its popularity and usefulness.

However, one area where the site could stand to improve is in terms of its PageSpeed Insights scores. With a speed score of 50, the site is considered to be performing below average. This could potentially lead to slower load times and a less responsive user experience, which could impact user engagement.

Despite this, overall the Gilder Lehrman Institute of American History's site is a valuable resource for anyone interested in learning more about the history of the United States. With its family-friendly content and expansive selection of resources, it is a site that is well worth exploring.

Gilderlehrman.org Rank Summary

Global Rank

104,526

Average Load Time

1.17sec

Links In Count

1,056

Website Value

$116,917

Audience Geography. Where are gilderlehrman.org visitors located?

Country	Visitors
United States US	90.1%
Canada CA	0.9%
Other	9%

Country	Pageviews
United States US	94.9%
Canada CA	0.4%
Other	4.6%

Country	Rank
United States US	14793
Canada CA	132331

Where do visitors go on gilderlehrman.org?

Subdomain	Pageviews
gilderlehrman.org	79.71%
ap.gilderlehrman.org	15.56%
hamilton.gilderlehrman.org	4.74%

Subdomain	Pageviews per User
hamilton.gilderlehrman.org	7
gilderlehrman.org	2
ap.gilderlehrman.org	1.9

Subdomain	Reach
gilderlehrman.org	83.67%
ap.gilderlehrman.org	17.15%
hamilton.gilderlehrman.org	1.35%

How popular is gilderlehrman.org?

Period	Global Rank	Global Rank Delta
past 3 months	104526	21084
past month	76458	-40199
past week	84101	18179
yesterday	208789	112181

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	123139	14838	42	-14.47%	2.4	20%
30	99356	-31815	55	40%	2.1	-20.46%
7	105065	19553	53	-23.43%	2.2	2%
1	136163	41476	4	-41.51%	7	100%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	103012	24613	65	-27.7%
30	72253	-46141	98	77%
7	81390	18060	87	-25.01%
1	286589	177909	2	-70.314%

Gilderlehrman.org Website Safety

Overview

Last Updated: 12/26/2024

Overall result - gilderlehrman.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

gilderlehrman.org is safe.

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

Google Safe Search

Last Updated: 10/15/2016

gilderlehrman.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

gilderlehrman.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

gilderlehrman.org is safe.

McAfee assesses gilderlehrman.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 gilderlehrman.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

gilderlehrman.org child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	gilderlehrman.org
Issuer Organization	Let's Encrypt
Issuer	R10
Algorithm	RSA-SHA256
Valid form	09/15/2024
Expiration	12/14/2024
Signed	Certificate is not self signed
Additional Domains	gilderlehrman.org www.gilderlehrman.org

Gilderlehrman.org Rank History

Alexa Rank shows how popular gilderlehrman.org is in comparison with other sites. The most popular site has Alexa Rank equals 1. If gilderlehrman.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 gilderlehrman.org and pageviews on gilderlehrman.org over the past 3 months.

Gilderlehrman.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 54113

ASN Title: FASTLY - Fastly, US

Last Update: 07/18/2024

#
# 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
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# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 54113
ASName: FASTLY
ASHandle: AS54113
RegDate: 2011-10-04
Updated: 2012-03-02
Comment: http://www.fastly.com/
Ref: https://rdap.arin.net/registry/autnum/54113

OrgName: Fastly
OrgId: SKYCA-3
Address: PO Box 78266
City: San Francisco
StateProv: CA
PostalCode: 94107
Country: US
RegDate: 2011-09-16
Updated: 2017-03-30
Ref: https://rdap.arin.net/registry/entity/SKYCA-3

OrgNOCHandle: FNO19-ARIN
OrgNOCName: Fastly Network Operations
OrgNOCPhone: +1-415-404-9374
OrgNOCEmail: noc@fastly.com
OrgNOCRef: https://rdap.arin.net/registry/entity/FNO19-ARIN

OrgTechHandle: FRA19-ARIN
OrgTechName: Fastly RIR Administrator
OrgTechPhone: +1-415-404-9374
OrgTechEmail: rir-admin@fastly.com
OrgTechRef: https://rdap.arin.net/registry/entity/FRA19-ARIN

OrgAbuseHandle: ABUSE4771-ARIN
OrgAbuseName: Abuse Account
OrgAbusePhone: +1-415-496-9353
OrgAbuseEmail: abuse@fastly.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE4771-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.
#

Gilderlehrman.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: gilderlehrman.org
Registry Domain ID: bc7f1332aa1c4daba0ac8ee06cc58ae3-LROR
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com
Updated Date: 2021-07-27T07:51:23Z
Creation Date: 1998-09-26T04:00:00Z
Registry Expiry Date: 2026-09-25T04:00:00Z
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:
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: FL
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
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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
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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
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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: ns1.dnsbycomodo.net
Name Server: ns2.dnsbycomodo.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-13T10:00:01Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
gilderlehrman.org	104.236.203.234	7200

Host	MX Record	Priority	TTL
gilderlehrman.org	aspmx.l.google.com	1	3600
gilderlehrman.org	aspmx3.googlemail.com	10	3600
gilderlehrman.org	alt2.aspmx.l.google.com	5	3600
gilderlehrman.org	alt1.aspmx.l.google.com	5	3600
gilderlehrman.org	aspmx2.googlemail.com	10	3600

Host	NS Record	TTL
gilderlehrman.org	ns93.worldnic.com	7200
gilderlehrman.org	ns94.worldnic.com	7200

Host	TXT Record	TTL
gilderlehrman.org	google-site-verification=k15Nq8EnTxEeLsh3fbezIL_Rz3Jff41Q7JHCx7zFISM	7200
gilderlehrman.org	google-site-verification=kam3jsRnKWjuUHXV-w6q5FPjHSUPalo6iOnTc7oGho4	7200
gilderlehrman.org	google-site-verification=QjNIqhTBkW8Z6NaOe--NwhqjuTap6CChI-TcOEFDuqc	7200
gilderlehrman.org	v=spf1 include:_spf.google.com ~all	3600

ns93.worldnic.com
TTL: 7200
Email address: namehost.WORLDNIC.COM
Serial: 119041016
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 3600

Gilderlehrman.org HTML Check

HTML Validation Tool

Errors

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

Attribute “xmlns:content” not allowed here.

Attribute “xmlns:dc” not allowed here.

Attribute “xmlns:foaf” not allowed here.

Attribute “xmlns:og” not allowed here.

Attribute “xmlns:rdfs” not allowed here.

Attribute “xmlns:sioc” not allowed here.

Attribute “xmlns:sioct” not allowed here.

Attribute “xmlns:skos” not allowed here.

Attribute “xmlns:xsd” not allowed here.

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

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

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.

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

Element “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)

Bad value “” for attribute “name” on element “input”: Must not be empty.

Bad value “Main Content Header” for attribute “role” on element “section”.

Bad value “Main Content” for attribute “role” on element “section”.

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

Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.

Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.

The “frameborder” attribute on the “iframe” 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.

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

Unclosed element “section”.

Stray end tag “section”.

Stray end tag “div”.

Warnings

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

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

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

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

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

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

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

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

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

The “type” attribute is unnecessary for JavaScript resources.

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

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

Gilderlehrman.org Desktop Performance

Last tested: 10/11/2016

Desktop Speed

66%

Leverage browser caching

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

Optimize images

Desktop Resource Breakdown

Total Resources	122
Number of Hosts	18
Static Resources	110
JavaScript Resources	41
CSS Resources	5

Gilderlehrman.org Mobile Insights

Last tested: 10/11/2016

Mobile Usability

70%

Size content to viewport

Size tap targets appropriately

Mobile Speed

50%

Leverage browser caching

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

Optimize images

Mobile Resource Breakdown

Total Resources	122
Number of Hosts	18
Static Resources	110
JavaScript Resources	41
CSS Resources	5

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Gilderlehrman.org Gilder Lehrman Institute of American History |

Homepage

Gilderlehrman.org Overview

Gilderlehrman.org Rank Summary

Gilderlehrman.org Website Safety

Gilderlehrman.org Rank History

Gilderlehrman.org Hosting Information

Gilderlehrman.org Domain Registration and Settings

Gilderlehrman.org HTML Check

Gilderlehrman.org Desktop Performance

Gilderlehrman.org Mobile Insights

Gilderlehrman.org Similar Audits

Gilderlehrman.org Common Typos