ai-class.com - Udacity - Free Online Classes & Nanodegrees

Quick Summary

Online Status

UNKNOWN

Over the time ai-class.com has been ranked as high as 19,853 in the world, while most of its traffic comes from United States, where it reached as high as 25,304 position.

Ai-class.com receives about 7,265 unique visitors and 9,445 pageviews per day. The estimated value of ai-class.com is 166,440 USD. Each unique visitor makes about 1.3 pageviews on average.

Ai-class.com is registered under .COM top-level domain. Check other websites in .COM zone.

At the time of the last check (April 26, 2024) ai-class.com has an invalid SSL certificate.

According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust ai-class.com is quite a safe domain.

Mobile-Friendly test indicates that ai-class.com is well optimized for mobile and tablet devices, however website page loading time could be improved.

Ai-class.com General Information

Global Rank

73,031

Average Load Time

1.78sec

Links In Count

220

Website Value

$166,440

Audience Geography. Where are ai-class.com visitors located?

Country	Rank
United States US	25304
Canada CA	39031

Country	Percent of Pageviews
United States US	55.8%
Canada CA	3.7%
Other	40.6%

Country	Percent of Visitors
United States US	57.4%
Canada CA	3.7%
Other	38.9%

Where do visitors go on ai-class.com?

Subdomain	Pageviews
ai-class.com	100%

Subdomain	Pageviews per User
ai-class.com	1.4

Subdomain	Reach
ai-class.com	100%

How popular is ai-class.com?

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	59679	-39426	12	76%
30	59668	1151	11	-7.651%
7	57504	-13615	12	20%
1	73192	-10480	10	10%

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	127844	-51736	42	51%	1.3	-14.47%
30	123482	-6211	45	0.3%	1.4	9%
7	137654	-15509	42	10%	1.2	-10.37%
1	151491	-40641	4	40%	1	20%

Period	Global Rank	Global Rank Delta
past 3 months	73031	-41076
past month	71444	-714
past week	72266	-13403
yesterday	86988	-16919

Ai-class.com Alexa Rank History

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

Ai-class.com Safety Information

Overview

Last Updated: 04/26/2024

Overall result - "ai-class.com" 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: 02/06/2024

ai-class.com is safe.

Norton ConnectSafe evaluates ai-class.com for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 01/31/2017

ai-class.com 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 "ai-class.com".
"ai-class.com" is not a phishing page.
"ai-class.com" does not install unwanted software.
"ai-class.com" 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: 01/13/2021

ai-class.com is safe.

McAfee assesses ai-class.com 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 ai-class.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/11/2019

ai-class.com child safety isvery good.

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

SSL Information

SSL Checker Tool

WARNING!	Certificate download error. Previous scan results are shown below.
WARNING!	Ai-class.com is not secured by SSL certificate.

Ai-class.com Server Information

Server Location

Geolocation Tool

Not Found

ASN Information

ASN Lookup Tool

ASN ID: 16509
ASN Title: AMAZON-02 - Amazon.com, Inc., US

Last Update: 03/08/2024

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: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509

OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-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.
#

Ai-class.com Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: AI-CLASS.COM
Registry Domain ID: 1662858781_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2022-05-20T09:24:42Z
Creation Date: 2011-06-21T16:48:38Z
Registry Expiry Date: 2023-06-21T16:48:38Z
Registrar: MarkMonitor Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: abusecomplaints@markmonitor.com
Registrar Abuse Contact Phone: +1.2086851750
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: NS1.MARKMONITOR.COM
Name Server: NS2.MARKMONITOR.COM
Name Server: NS3.MARKMONITOR.COM
Name Server: NS4.MARKMONITOR.COM
Name Server: NS5.MARKMONITOR.COM
Name Server: NS6.MARKMONITOR.COM
Name Server: NS7.MARKMONITOR.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-08-30T00:22:12Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Ai-class.com HTML Validation

HTML Validation Tool

Errors

Attribute “ng-transition” not allowed on element “style” at this point.

Attribute “_ngcontent-c1” not allowed on element “a” at this point.

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

Attribute “_ngcontent-c1” not allowed on element “div” at this point.

Attribute “_ngcontent-c1” not allowed on element “svg” at this point.

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

Attribute “_ngcontent-c1” not allowed on element “g” at this point.

Attribute “_ngcontent-c1” not allowed on element “path” at this point.

Attribute “_ngcontent-c1” not allowed on element “nav” at this point.

Attribute “_ngcontent-c1” not allowed on element “ul” at this point.

Attribute “_ngcontent-c1” not allowed on element “li” at this point.

Attribute “_ngcontent-c4” not allowed on element “header” at this point.

Attribute “_ngcontent-c4” not allowed on element “div” at this point.

Attribute “_ngcontent-c4” not allowed on element “a” at this point.

Attribute “_ngcontent-c4” not allowed on element “span” at this point.

Attribute “_ngcontent-c4” not allowed on element “h1” at this point.

Attribute “_ngcontent-c4” not allowed on element “img” at this point.

Attribute “_ngcontent-c4” not allowed on element “svg” at this point.

Duplicate ID “mark”.

Attribute “_ngcontent-c4” not allowed on element “path” at this point.

Attribute “_ngcontent-c4” not allowed on element “nav” at this point.

Attribute “_ngcontent-c12” not allowed on element “section” at this point.

Attribute “_ngcontent-c14” not allowed on element “section” at this point.

Attribute “_ngcontent-c14” not allowed on element “div” at this point.

Attribute “_ngcontent-c32” not allowed on element “div” at this point.

Attribute “_ngcontent-c32” not allowed on element “a” at this point.

Attribute “_ngcontent-c32” not allowed on element “span” at this point.

Element “h6” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)

Element “h2” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)

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

Attribute “_ngcontent-c32” not allowed on element “button” at this point.

The element “button” must not appear as a descendant of the “a” element.

Attribute “_ngcontent-c34” not allowed on element “div” at this point.

Attribute “_ngcontent-c34” not allowed on element “a” at this point.

Attribute “_ngcontent-c34” not allowed on element “img” at this point.

Attribute “_ngcontent-c34” not allowed on element “h6” at this point.

Attribute “classname” not allowed on element “h6” at this point.

Attribute “_ngcontent-c34” not allowed on element “p” at this point.

Attribute “_ngcontent-c19” not allowed on element “div” at this point.

Attribute “_ngcontent-c19” not allowed on element “h6” at this point.

Attribute “_ngcontent-c19” not allowed on element “img” at this point.

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

Attribute “_ngcontent-c12” not allowed on element “hr” at this point.

Attribute “_ngcontent-c23” not allowed on element “div” at this point.

Attribute “_ngcontent-c23” not allowed on element “h6” at this point.

Attribute “_ngcontent-c35” not allowed on element “div” at this point.

Attribute “_ngcontent-c23” not allowed on element “blockquote” at this point.

Attribute “_ngcontent-c23” not allowed on element “cite” at this point.

Element “h4” not allowed as child of element “cite” in this context. (Suppressing further errors from this subtree.)

Element “h6” not allowed as child of element “cite” in this context. (Suppressing further errors from this subtree.)

Attribute “_ngcontent-c35” not allowed on element “a” at this point.

Attribute “_ngcontent-c35” not allowed on element “span” at this point.

Attribute “_ngcontent-c23” not allowed on element “img” at this point.

Attribute “_ngcontent-c12” not allowed on element “div” at this point.

Attribute “_ngcontent-c38” not allowed on element “div” at this point.

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

Attribute “_ngcontent-c38” not allowed on element “a” at this point.

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

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

Attribute “_ngcontent-c38” not allowed on element “span” at this point.

Attribute “_ngcontent-c38” not allowed on element “h4” at this point.

Attribute “_ngcontent-c38” not allowed on element “ul” at this point.

Attribute “_ngcontent-c38” not allowed on element “li” at this point.

Attribute “_ngcontent-c38” not allowed on element “img” at this point.

Attribute “_ngcontent-c21” not allowed on element “div” at this point.

Attribute “_ngcontent-c21” not allowed on element “a” at this point.

Attribute “_ngcontent-c21” not allowed on element “span” at this point.

Attribute “_ngcontent-c24” not allowed on element “div” at this point.

Attribute “_ngcontent-c37” not allowed on element “div” at this point.

Attribute “_ngcontent-c37” not allowed on element “img” at this point.

Attribute “_ngcontent-c37” not allowed on element “h3” at this point.

Attribute “_ngcontent-c37” not allowed on element “p” at this point.

Attribute “_ngcontent-c37” not allowed on element “a” at this point.

Attribute “_ngcontent-c26” not allowed on element “div” at this point.

Attribute “_ngcontent-c26” not allowed on element “h2” at this point.

Attribute “_ngcontent-c30” not allowed on element “div” at this point.

Attribute “_ngcontent-c31” not allowed on element “div” at this point.

Attribute “_ngcontent-c31” not allowed on element “img” at this point.

Attribute “irdeferimage” not allowed on element “img” at this point.

Attribute “_ngcontent-c31” not allowed on element “h3” at this point.

Attribute “_ngcontent-c31” not allowed on element “span” at this point.

Attribute “_ngcontent-c31” not allowed on element “p” at this point.

Attribute “_ngcontent-c22” not allowed on element “div” at this point.

Attribute “_ngcontent-c22” not allowed on element “a” at this point.

Attribute “_ngcontent-c29” not allowed on element “div” at this point.

Attribute “_ngcontent-c29” not allowed on element “h4” at this point.

Attribute “_ngcontent-c29” not allowed on element “p” at this point.

Attribute “_ngcontent-c29” not allowed on element “a” at this point.

Attribute “_ngcontent-c5” not allowed on element “footer” at this point.

Attribute “_ngcontent-c5” not allowed on element “div” at this point.

Attribute “_ngcontent-c5” not allowed on element “section” at this point.

Attribute “_ngcontent-c5” not allowed on element “a” at this point.

Attribute “_ngcontent-c5” not allowed on element “svg” at this point.

Attribute “_ngcontent-c5” not allowed on element “path” at this point.

Attribute “_ngcontent-c5” not allowed on element “nav” at this point.

Attribute “_ngcontent-c5” not allowed on element “ul” at this point.

Attribute “_ngcontent-c5” not allowed on element “li” at this point.

Attribute “_ngcontent-c7” not allowed on element “h6” at this point.

Attribute “_ngcontent-c7” not allowed on element “ul” at this point.

Attribute “_ngcontent-c7” not allowed on element “li” at this point.

Attribute “_ngcontent-c7” not allowed on element “a” at this point.

Attribute “_ngcontent-c5” not allowed on element “p” at this point.

Attribute “_ngcontent-c9” not allowed on element “div” at this point.

Attribute “_ngcontent-c9” not allowed on element “input” at this point.

Attribute “_ngcontent-c9” not allowed on element “a” at this point.

Attribute “_ngcontent-c9” not allowed on element “img” at this point.

Attribute “_ngcontent-c9” not allowed on element “label” at this point.

The element “label” must not appear as a descendant of the “a” element.

Attribute “_ngcontent-c9” not allowed on element “span” at this point.

Attribute “_ngcontent-c9” not allowed on element “ul” at this point.

Attribute “_ngcontent-c9” not allowed on element “li” at this point.

Attribute “_ngcontent-c10” not allowed on element “ul” at this point.

Attribute “_ngcontent-c10” not allowed on element “li” at this point.

Attribute “_ngcontent-c10” not allowed on element “a” at this point.

Attribute “_ngcontent-c10” not allowed on element “div” at this point.

Attribute “_ngcontent-c11” not allowed on element “div” at this point.

Attribute “_ngcontent-c0” not allowed on element “span” at this point.

Attribute “_ngcontent-c0” not allowed on element “a” at this point.

Attribute “_ngcontent-c11” not allowed on element “button” at this point.

Attribute “_ngcontent-c11” not allowed on element “svg” at this point.

Attribute “_ngcontent-c11” not allowed on element “g” at this point.

Attribute “_ngcontent-c11” not allowed on element “path” at this point.

Warnings

The “navigation” role is unnecessary for element “nav”.

The first occurrence of ID “mark” was here.

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

This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.

Ai-class.com Desktop Insights

Desktop Page Insights Tool

Last tested: 12/26/2015

Desktop

Desktop Speed

72%

Leverage browser caching

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

Enable compression

Prioritize visible content

Reduce server response time

Minify CSS

Optimize images

Minify JavaScript

Minify HTML

Desktop Resource Breakdown

Total Resources	121
Number of Hosts	42
Static Resources	61
JavaScript Resources	30
CSS Resources	4

Ai-class.com Mobile Insights

Mobile Page Insights Tool

Last tested: 11/01/2019

Mobile

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

56%

Optimize images

Avoid landing page redirects

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

Leverage browser caching

Minify CSS

Enable compression

Mobile Resource Breakdown

Total Resources	56
Number of Hosts	8
Static Resources	46
JavaScript Resources	5
CSS Resources	2

Ai-class.com Typos

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Ai-class.com Udacity - Free Online Classes & Nanodegrees

Find free online courses, make a career change, or get a new job by completing a Nanodegree program. Self paced online learning with code reviews.

Quick Summary

Ai-class.com General Information

Ai-class.com Alexa Rank History

Ai-class.com Safety Information

Ai-class.com Server Information

Ai-class.com Domain Name Information

Ai-class.com HTML Validation

Ai-class.com Desktop Insights

Ai-class.com Mobile Insights

Ai-class.com Nearest Competitors

Ai-class.com Typos