last data update: 2011/10/18, 07:31

Website loading time

during the test: 0.53 s

cable connection (average): 0.68 s

DSL connection (average): 0.83 s

modem (average): 8.63 s

HTTP headers

Information about DNS servers

freetechbooks.comMX10mail.freetechbooks.comIN1800
freetechbooks.comSOAdns1.registrar-servers.comhostmaster.registrar-servers.com200808080810001 1801 604801 3601 IN 3601
freetechbooks.comA67.222.141.76IN1800
freetechbooks.comNSdns1.registrar-servers.comIN1800
freetechbooks.comNSdns3.registrar-servers.comIN1800
freetechbooks.comNSdns2.registrar-servers.comIN1800

Received from the first DNS server

Request to the server "freetechbooks.com"
You used the following DNS server:
DNS Name: dns1.registrar-servers.com
DNS Server Address: 69.16.244.25#53
DNS server aliases:

HEADER opcode: REQUEST, status: NOERROR, id: 23907
flag: qr aa rd REQUEST: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 1

REQUEST SECTION:
freetechbooks.com. IN ANY

ANSWER SECTION:
freetechbooks.com. 3601 IN SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 2008080808 10001 1801 604801 3601
freetechbooks.com. 1800 IN MX 10 mail.freetechbooks.com.
freetechbooks.com. 1800 IN A 67.222.141.76
freetechbooks.com. 1800 IN NS dns1.registrar-servers.com.
freetechbooks.com. 1800 IN NS dns3.registrar-servers.com.
freetechbooks.com. 1800 IN NS dns2.registrar-servers.com.

SECTION NOTES:
mail.freetechbooks.com. 1800 IN A 67.222.141.76

Received 210 bytes from address 69.16.244.25#53 in 42 ms

Received from the second DNS server

Request to the server "freetechbooks.com"
You used the following DNS server:
DNS Name: dns3.registrar-servers.com
DNS Server Address: 67.228.228.216#53
DNS server aliases:

HEADER opcode: REQUEST, status: NOERROR, id: 1293
flag: qr aa rd REQUEST: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 1

REQUEST SECTION:
freetechbooks.com. IN ANY

ANSWER SECTION:
freetechbooks.com. 3601 IN SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 2008080808 10001 1801 604801 3601
freetechbooks.com. 1800 IN A 67.222.141.76
freetechbooks.com. 1800 IN NS dns1.registrar-servers.com.
freetechbooks.com. 1800 IN NS dns2.registrar-servers.com.
freetechbooks.com. 1800 IN MX 10 mail.freetechbooks.com.
freetechbooks.com. 1800 IN NS dns3.registrar-servers.com.

SECTION NOTES:
mail.freetechbooks.com. 1800 IN A 67.222.141.76

Received 210 bytes from address 67.228.228.216#53 in 81 ms

Subdomains (the first 50)

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Location

IP: 67.222.141.76

continent: NA, country: United States (USA), city: Novi

Website value

rank in the traffic statistics:

There is not enough data to estimate website value.

Basic information

website build using CSS

code weight: 56.69 KB

text per all code ratio: 15 %

title: Free Online Computer Science and Programming Books, Textbooks, and Lecture Notes :: FreeTechBooks.com

description:

keywords: Free, online, computer, science, engineering, and, programming, books, ebooks, texts, textbooks, lecture, notes, documentations, references

encoding: iso-8859-1

language: en

Website code analysis

one word phrases repeated minimum three times

PhraseQuantity
and4

two word phrases repeated minimum three times

three word phrases repeated minimum three times

B tags

FreeTechBooks.com

books

textbooks

lecture notes

legally and freely available

ebook

text

document

monogram

notes

None

freely available

(a)

(b)

(c)

terms and conditions

free / open documentation licenses

view, download and with a very few exceptions, print

at no charge

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Introduction to Computer Science

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Ruby

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The newest registered user is adelaide887

38

Most users ever online was 263

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Lessons In Electric Circuits
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Introduction to Object-Oriented Programming Using C++
Programming The Nintendo Game Boy Advance: The Unofficial Guide
Data Structures and Algorithms with Object-Oriented Design Patterns in C++
A Short Introduction to Operating Systems
C++ Programming
A Balanced Introduction to Computer Science
C Programming Tutorial (K&R version 4)
Computer Organization and Design Fundamentals
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Introduction to Nanoelectronics
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Computer Networks: Performance and Quality of Service
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Clever Algorithms - Nature-Inspired Programming Recipes
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Python for Informatics: Exploring Information
Introduction to Computer Science
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The Book Of Ruby
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