Cs61a.org CS 61A Fall 2023

CS 61A: Structure and Interpretation of Computer Programs

Cs61a.org Overview

Cs61a.org ranking shows that the page is at position 100,275 over the world, while the bulk of its audience is from United States, where it ranks 37,940.

In terms of rank-to-traffic ratio, cs61a.org has 2,384 unique users per day, viewing 7,223 pages. The rank based value of cs61a.org is 134,028 USD. Every user makes 3.24 pageviews on average.

Cs61a.org boasts a link base consisting of 291 referring domains and 369 external backlinks, as revealed by the data obtained from web network scanning.

Cs61a.org top-level domain belongs to .ORG domain zone. Check other webpages in .ORG zone.

According the last verification test in September 25, 2022, cs61a.org has an expired SSL certificate issued by Google Trust Services LLC (expired on December 01, 2022). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Google Trust Services LLC.

Based on data from Google Safe Browsing, Google Safe Search and Symantec cs61a.org is a fairly safe domain.

According the Mobile-Friendly test by Google cs61a.org is nice optimized for mobile devices and tablets.

Cs61a.org Rank Summary

Global Rank

100,275

Average Load Time

0.53sec

Links In Count

Website Value

$124,100

Audience Geography. Where are cs61a.org visitors located?

Country	Visitors
United States US	80.7%
Australia AU	10.1%
India IN	1.8%
Other	7.5%

Country	Pageviews
United States US	72.6%
Australia AU	20.8%
India IN	0.9%
Other	5.7%

Country	Rank
Australia AU	18702
United States US	37940
India IN	303181

Where do visitors go on cs61a.org?

Subdomain	Pageviews
cs61a.org	93.34%
scheme.cs61a.org	5.35%
other	1.31%

Subdomain	Pageviews per User
cs61a.org	3.5
scheme.cs61a.org	1

Subdomain	Reach
cs61a.org	97.34%
scheme.cs61a.org	19.7%

How popular is cs61a.org?

Period	Global Rank	Global Rank Delta
past 3 months	100275	-31775
past month	159634	56092
past week	115066	-103168
yesterday	323807	168335

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	103667	-24283	52	33%	3	-9.366%
30	146768	25289	34	-19.88%	3.7	50%
7	116831	-76218	47	89%	3.2	-20%
1	489957	334544	6	-82.93%	1	-66.667%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	105157	-37433	64	47%
30	177466	74559	34	-48.097%
7	124172	-127604	54	100%
1	260772	96989	2	-48.799%

Cs61a.org Website Safety

Overview

Last Updated: 12/28/2024

Overall result - cs61a.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: 03/24/2024

cs61a.org is safe.

Norton ConnectSafe evaluates cs61a.org for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 02/19/2019

cs61a.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

cs61a.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: 02/23/2021

cs61a.org is safe.

McAfee assesses cs61a.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 cs61a.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 12/28/2024

cs61a.org child safety is unknown.

The WOT calculates reputation of the cs61a.org. This reputation system receives ratings from users and information from third-party sources, assesses the cs61a.org for safety features and confirms, whether cs61a.org is suitable for children.

SSL Information

SSL Checker Tool

Domain	cs61a.org
Issuer Organization	Google Trust Services LLC
Issuer	GTS CA 1D4
Algorithm	RSA-SHA256
Valid form	09/02/2022
Expiration	12/01/2022
Signed	Certificate is not self signed
Additional Domains	cs61a.org

Cs61a.org Rank History

Alexa Rank shows how popular cs61a.org is in comparison with other sites. The most popular site has Alexa Rank equals 1. If cs61a.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 cs61a.org and pageviews on cs61a.org over the past 3 months.

Cs61a.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 15169

ASN Title: GOOGLE - Google LLC, US

Last Update: 07/22/2024

#
# 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: 15169
ASName: GOOGLE
ASHandle: AS15169
RegDate: 2000-03-30
Updated: 2012-02-24
Ref: https://rdap.arin.net/registry/autnum/15169

OrgName: Google LLC
OrgId: GOGL
Address: 1600 Amphitheatre Parkway
City: Mountain View
StateProv: CA
PostalCode: 94043
Country: US
RegDate: 2000-03-30
Updated: 2017-12-21
Ref: https://rdap.arin.net/registry/entity/GOGL

OrgAbuseHandle: ABUSE5250-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-650-253-0000
OrgAbuseEmail: network-abuse@google.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE5250-ARIN

OrgTechHandle: ZG39-ARIN
OrgTechName: Google LLC
OrgTechPhone: +1-650-253-0000
OrgTechEmail: arin-contact@google.com
OrgTechRef: https://rdap.arin.net/registry/entity/ZG39-ARIN

RTechHandle: ZG39-ARIN
RTechName: Google LLC
RTechPhone: +1-650-253-0000
RTechEmail: arin-contact@google.com
RTechRef: https://rdap.arin.net/registry/entity/ZG39-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.
#

Cs61a.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: cs61a.org
Registry Domain ID: 55ea954658564d1da303de5108878467-LROR
Registrar WHOIS Server: whois.squarespace.domains
Registrar URL: https://domains.squarespace.com
Updated Date: 2024-06-22T18:12:03Z
Creation Date: 2014-06-23T04:48:18Z
Registry Expiry Date: 2025-06-23T04:48:18Z
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: CA
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: ns-cloud-c1.googledomains.com
Name Server: ns-cloud-c2.googledomains.com
Name Server: ns-cloud-c3.googledomains.com
Name Server: ns-cloud-c4.googledomains.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-26T07:16:07Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Cs61a.org HTML Check

HTML Validation Tool

Errors

Bad value “https://fonts.googleapis.com/css?family=Inconsolata|Roboto:300,400,500|Work+Sans:400,700” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.

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

Bad value “https://sequoia-tree.github.io/#Textbook/The Terminal” for attribute “href” on element “a”: Illegal character in fragment: space is not allowed.

Bad value “https://sequoia-tree.github.io/#Textbook/Counting Problems” for attribute “href” on element “a”: Illegal character in fragment: space is not allowed.

Bad value “https://sequoia-tree.github.io/#Textbook/Orders of Growth” for attribute “href” on element “a”: Illegal character in fragment: space is not allowed.

Bad value “http://owenjow.xyz/cs61a/fa16/oog_review/OoG%20Review%20[Owen;%20Fall%202016].pdf” for attribute “href” on element “a”: Illegal character in path segment: “[” is not allowed.

Bad value “https://sequoia-tree.github.io/#Textbook/Iterators and Generators” for attribute “href” on element “a”: Illegal character in fragment: space is not allowed.

Warnings

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

Cs61a.org Desktop Performance

Last tested: 12/21/2016

Desktop Speed

86%

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

Leverage browser caching

Prioritize visible content

Minify HTML

Enable compression

Desktop Resource Breakdown

Total Resources	10
Number of Hosts	3
Static Resources	9
JavaScript Resources	5
CSS Resources	3

Cs61a.org Mobile Insights

Last tested: 08/15/2018

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

67%

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

Prioritize visible content

Leverage browser caching

Minify CSS

Mobile Resource Breakdown

Total Resources	14
Number of Hosts	4
Static Resources	8
JavaScript Resources	3
CSS Resources	4

Cs61a.org Common Typos

www.cs61a.com
www.cs61a.net
www.cs61a.org
www.cs61a.info
www.cs61a.biz
www.cs61a.us
www.cs61a.mobi
www.s61a.org
www.cs61a.org
www.xs61a.org
www.cxs61a.org
www.xcs61a.org
www.ds61a.org
www.cds61a.org
www.dcs61a.org
www.fs61a.org
www.cfs61a.org
www.fcs61a.org
www.vs61a.org
www.cvs61a.org
www.vcs61a.org
www.c61a.org
www.cw61a.org
www.csw61a.org
www.cws61a.org
www.ce61a.org
www.cse61a.org
www.ces61a.org
www.cd61a.org
www.csd61a.org
www.cz61a.org
www.csz61a.org
www.czs61a.org
www.cx61a.org
www.csx61a.org
www.ca61a.org
www.csa61a.org
www.cas61a.org
www.cs1a.org
www.cs6a.org
www.cs61.org
www.cs61q.org
www.cs61aq.org
www.cs61qa.org
www.cs61w.org
www.cs61aw.org
www.cs61wa.org
www.cs61s.org
www.cs61as.org
www.cs61sa.org
www.cs61z.org
www.cs61az.org
www.cs61za.org

Cs61a.org CS 61A Fall 2023

CS 61A: Structure and Interpretation of Computer Programs

Cs61a.org Overview

Cs61a.org Rank Summary

Cs61a.org Website Safety

Cs61a.org Rank History

Cs61a.org Hosting Information

Cs61a.org Domain Registration and Settings

Cs61a.org HTML Check

Cs61a.org Desktop Performance

Cs61a.org Mobile Insights

Cs61a.org Similar Audits

Cs61a.org Common Typos