openintro.org - OpenIntro: developer and promoter of educational products that are free, transparent, and lower barriers to education.

Quick Summary

Online Status

Online

Server IP address resolved: Yes
Http response code: 200
Response time: 0.65 sec.
Last Checked: 08/02/2024

Over the time openintro.org has been ranked as high as 24,602 in the world, while most of its traffic comes from United States, where it reached as high as 91,651 position.

Openintro.org receives about 1,714 unique visitors and 2,742 pageviews per day. The estimated value of openintro.org is 52,560 USD. Each unique visitor makes about 1.6 pageviews on average.

Openintro.org is registered under .ORG top-level domain. Check other websites in .ORG zone.

At the time of the last check (October 08, 2024) openintro.org has a valid and up-to-date SSL certificate issued by Sectigo Limited that expires on September 17, 2025. Check other websites using SSL certificates issued by Sectigo Limited.

According to Google Safe Browsing, Google Safe Search and Symantec openintro.org is quite a safe domain.

Mobile-Friendly test indicates that openintro.org is well optimized for mobile and tablet devices.

Openintro.org General Information

Global Rank

249,576

Average Load Time

2.96sec

Links In Count

154

Website Value

$52,560

Audience Geography. Where are openintro.org visitors located?

Country	Rank
Denmark DK	13936
Korea KR	21332
Nigeria NG	30637
Canada CA	66678
United States US	91651
India IN	264531

Country	Percent of Pageviews
United States US	44.9%
Korea KR	24.4%
Canada CA	10.2%
Denmark DK	6.5%
Nigeria NG	5.6%
India IN	2.9%
Other	5.4%

Country	Percent of Visitors
United States US	49.1%
Korea KR	23%
Denmark DK	6.6%
Canada CA	5.9%
Nigeria NG	4.7%
India IN	3.8%
Other	6.8%

Where do visitors go on openintro.org?

Subdomain	Pageviews
openintro.org	100%

Subdomain	Pageviews per User
openintro.org	1.6

Subdomain	Reach
openintro.org	100%

How popular is openintro.org?

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	226437	7294	25	-1.93%
30	230437	11683	24	-9.32%
7	245992	55521	24	-20.14%
1	886817	454064	6	-49.71%

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	347831	-25001	11	10%	1.6	10%
30	365558	57407	1	-23.11%	1.6	-15.14%
7	408222	112537	1	-28.98%	1.5	-10.84%
1	707327	136468	4	-30.9%	2	40%

Period	Global Rank	Global Rank Delta
past 3 months	249576	-1475
past month	255357	23522
past week	271119	63364
yesterday	847848	359205

Openintro.org Alexa Rank History

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

Openintro.org Safety Information

Overview

Last Updated: 11/02/2024

Overall result - "openintro.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: 03/27/2024

openintro.org is safe.

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

Google Safe Search

Last Updated: 11/19/2016

openintro.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

Malware not found at "openintro.org".
"openintro.org" is not a phishing page.
"openintro.org" does not install unwanted software.
"openintro.org" does not contain harmfull applications.
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: 02/26/2021

openintro.org is safe.

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

Web of Trust

Last Updated: 11/02/2024

openintro.org child safety isunknown.

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

SSL Information

SSL Checker Tool

Domain	openintro.org
Issuer Organization	Sectigo Limited
Issuer	Sectigo RSA Domain Validation Secure Server CA
Algorithm	RSA-SHA256
Valid form	09/06/2024
Expiration	09/17/2025
Signed	Certificate is not self signed
Additional Domains	openintro.org www.openintro.org

Openintro.org Server Information

Server Location

Geolocation Tool

Not Found

ASN Information

ASN Lookup Tool

ASN ID: 19871
ASN Title: NETWORK-SOLUTIONS-HOSTING - Network Solutions, LLC, US

Last Update: 07/31/2024

ASN Whois

#
# 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: 19871
ASName: NETWORK-SOLUTIONS-HOSTING
ASHandle: AS19871
RegDate: 2006-09-06
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/19871

OrgName: Network Solutions, LLC
OrgId: NETWO-59
Address: 12808 Gran Bay Parkway West
City: Jacksonville
StateProv: FL
PostalCode: 32258
Country: US
RegDate: 2004-08-05
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/NETWO-59

OrgAbuseHandle: NOC2042-ARIN
OrgAbuseName: NOC
OrgAbusePhone: +1-703-668-4900
OrgAbuseEmail: nocsupport@networksolutions.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/NOC2042-ARIN

OrgTechHandle: NOC2042-ARIN
OrgTechName: NOC
OrgTechPhone: +1-703-668-4900
OrgTechEmail: nocsupport@networksolutions.com
OrgTechRef: https://rdap.arin.net/registry/entity/NOC2042-ARIN

RTechHandle: NOC2042-ARIN
RTechName: NOC
RTechPhone: +1-703-668-4900
RTechEmail: nocsupport@networksolutions.com
RTechRef: https://rdap.arin.net/registry/entity/NOC2042-ARIN

RNOCHandle: NOC2042-ARIN
RNOCName: NOC
RNOCPhone: +1-703-668-4900
RNOCEmail: nocsupport@networksolutions.com
RNOCRef: https://rdap.arin.net/registry/entity/NOC2042-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.
#

Openintro.org Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: openintro.org
Registry Domain ID: 7872da639ab14358a559d74471b6aa37-LROR
Registrar WHOIS Server: whois.squarespace.domains
Registrar URL: https://domains.squarespace.com
Updated Date: 2024-05-18T06:58:09Z
Creation Date: 2009-07-11T19:22:08Z
Registry Expiry Date: 2032-07-11T19:22:08Z
Registrar: Squarespace Domains II LLC
Registrar IANA ID: 895
Registrar Abuse Contact Email: abuse-complaints@squarespace.com
Registrar Abuse Contact Phone: +1.6466935324
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
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: MN
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: ns1629.hostgator.com
Name Server: ns1630.hostgator.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-10-21T03:47:35Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Openintro.org HTML Validation

HTML Validation Tool

Errors

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

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

Bad value “129px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Bad value “174px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Duplicate ID “mrights”.

Attribute “alt” not allowed on element “div” at this point.

Attribute “alt” not allowed on element “a” at this point.

Warnings

The first occurrence of ID “mrights” was here.

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

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

Openintro.org Desktop Insights

Desktop Page Insights Tool

Last tested: 12/09/2018

Desktop

Desktop Speed

77%

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

Optimize images

Leverage browser caching

Reduce server response time

Minify JavaScript

Minify CSS

Minify HTML

Desktop Resource Breakdown

Total Resources	35
Number of Hosts	8
Static Resources	20
JavaScript Resources	10
CSS Resources	2

Openintro.org Mobile Insights

Mobile Page Insights Tool

Last tested: 12/09/2018

Mobile

Mobile Usability

82%

Configure the viewport

Size tap targets appropriately

Use legible font sizes

Mobile Speed

65%

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

Leverage browser caching

Optimize images

Minify JavaScript

Reduce server response time

Minify CSS

Minify HTML

Mobile Resource Breakdown

Total Resources	35
Number of Hosts	8
Static Resources	20
JavaScript Resources	10
CSS Resources	2

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Openintro.org OpenIntro: developer and promoter of educational products that are free, transparent, and lower barriers to education.

OpenIntro's mission is to make educational products that are free, transparent, and lower barriers to education. We're a registered 501(c)(3) nonprofi...

Quick Summary

Openintro.org General Information

Openintro.org Alexa Rank History

Openintro.org Safety Information

Openintro.org Server Information

Openintro.org Domain Name Information

Openintro.org HTML Validation

Openintro.org Desktop Insights

Openintro.org Mobile Insights

Openintro.org Nearest Competitors

Openintro.org Typos