Htdp / How to Design Programs

Robots.txt Information

Robot	Path	Permission
GoogleBot	/	✔
BingBot	/	✔
BaiduSpider	/	✔
YandexBot	/	✔

Meta Tags

Title	How to Design Programs
Description	N/A
Keywords	N/A

Server Information

WebSite	www.htdp.org
Host IP	185.199.111.153
Location	United States

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More to Explore

Htdp.org Valuation

US$189,132

Last updated: May 11, 2020

Htdp.org has global traffic rank of 546,638. Its global rank has gone down by 44,134 positions since 3 months ago. Htdp.org has an estimated worth of US$ 189,132, based on its estimated Ads revenue. Htdp.org receives approximately 5,757 unique visitors each day. Its web server is located in United States, with IP address 185.199.111.153. According to SiteAdvisor, htdp.org is safe to visit.

Traffic & Worth Estimates

Purchase/Sale Value	US$189,132
Daily Ads Revenue	US$103
Monthly Ads Revenue	US$3,109
Yearly Ads Revenue	US$37,826
Daily Unique Visitors	5,757
Note: All traffic and earnings values are estimates.

Traffic Ranks

Global Rank	546,638
Delta (90 Days)	⬇️ 44,134
Most Popular In Country	N/A
Country Rank	N/A

DNS Records

Host	Type	TTL	Data
htdp.org	A	3599	IP: 185.199.108.153
htdp.org	A	3599	IP: 185.199.109.153
htdp.org	A	3599	IP: 185.199.110.153
htdp.org	A	3599	IP: 185.199.111.153
htdp.org	MX	3599	Priority: 10 Target: aspmx2.googlemail.com.
htdp.org	MX	3599	Priority: 10 Target: aspmx3.googlemail.com.
htdp.org	MX	3599	Priority: 5 Target: alt1.aspmx.l.google.com.
htdp.org	MX	3599	Priority: 5 Target: alt2.aspmx.l.google.com.
htdp.org	MX	3599	Priority: 0 Target: aspmx.l.google.com.
htdp.org	NS	21599	Target: ns-2035.awsdns-62.co.uk.
htdp.org	NS	21599	Target: ns-372.awsdns-46.com.
htdp.org	NS	21599	Target: ns-699.awsdns-23.net.
htdp.org	NS	21599	Target: ns-1106.awsdns-10.org.
htdp.org	TXT	3599	TXT: v=spf1 -all
htdp.org	SOA	899	MNAME: ns-699.awsdns-23.net. RNAME: awsdns-hostmaster.amazon.com. Serial: 1 Refresh: 7200 Retry: 900 Expire: 1209600 Minimum TTL: 86400

HTTP Headers

HTTP/1.1 301 Moved Permanently
Server: GitHub.com
Content-Type: text/html
Location: https://htdp.org/
X-GitHub-Request-Id: 476C:1B37:E5B123:11C4645:5EB9830B
Content-Length: 162
Accept-Ranges: bytes
Date: Mon, 11 May 2020 16:53:33 GMT
Via: 1.1 varnish
Age: 0
Connection: keep-alive
X-Served-By: cache-lga21976-LGA
X-Cache: MISS
X-Cache-Hits: 0
X-Timer: S1589216013.214212,VS0,VE9
Vary: Accept-Encoding
X-Fastly-Request-ID: 7d482b35a61ad28f641dd58d255a429207fe0876

HTTP/2 200 
server: GitHub.com
content-type: text/html; charset=utf-8
last-modified: Sat, 09 May 2020 01:23:26 GMT
etag: "5eb6060e-76d"
access-control-allow-origin: *
expires: Sat, 09 May 2020 15:31:47 GMT
cache-control: max-age=600
x-proxy-cache: MISS
x-github-request-id: DB94:2A47:A3D54A:CA7669:5EB6CA8A
accept-ranges: bytes
date: Mon, 11 May 2020 16:53:33 GMT
via: 1.1 varnish
age: 0
x-served-by: cache-lga21970-LGA
x-cache: HIT
x-cache-hits: 1
x-timer: S1589216013.274797,VS0,VE13
vary: Accept-Encoding
x-fastly-request-id: 2eaf9cd81ffe2546ac1ce6d896d97c96c485407e
content-length: 1901

Htdp.org Whois Information

Domain Name: HTDP.ORG
Registry Domain ID: D74020628-LROR
Registrar WHOIS Server: whois.gandi.net
Registrar URL: http://www.gandi.net
Updated Date: 2020-02-21T15:14:33Z
Creation Date: 2001-06-29T14:32:48Z
Registry Expiry Date: 2021-06-29T14:32:48Z
Registrar Registration Expiration Date:
Registrar: Gandi SAS
Registrar IANA ID: 81
Registrar Abuse Contact Email: abuse@support.gandi.net
Registrar Abuse Contact Phone: +33.170377661
Reseller:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registrant Organization: How to Design Programs
Registrant State/Province: RI
Registrant Country: US
Name Server: NS-1106.AWSDNS-10.ORG
Name Server: NS-699.AWSDNS-23.NET
Name Server: NS-372.AWSDNS-46.COM
Name Server: NS-2035.AWSDNS-62.CO.UK
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)

Htdp.org valuation and analysis