techbooksforfree.com ▷ Free Programming, SQL Data Coding, Computer Science. IT Books

Quick Summary

Online Status

Offline

Server IP address resolved: No
Http response code: None
Last Checked: 04/28/2025

Techbooksforfree.com traffic volume is 154 unique daily visitors and their 293 pageviews. The web value rate of techbooksforfree.com is 3,124 USD. Each visitor makes around 2.03 page views on average.

By Alexa's traffic estimates techbooksforfree.com placed at 80,023 position over the world.

Techbooksforfree.com registered under .COM top-level domain. Check other websites in .COM zone.

The last verification results, performed on (July 15, 2024) techbooksforfree.com show that techbooksforfree.com has an expired SSL certificate issued by Let's Encrypt (expired on August 18, 2024). Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by Let's Encrypt.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust techbooksforfree.com is pretty a safe domain.

Relying Google MobileFriendly test techbooksforfree.com is well optimized for mobile and tablet devices.

Techbooksforfree.com General Information

Global Rank

2,475,705

Average Load Time

2.93sec

Links In Count

323

Website Value

$2,920

Audience Geography. Where are techbooksforfree.com visitors located?

Country	Visitors

Country	Pageviews

Country	Rank

Where do visitors go on techbooksforfree.com?

Subdomain	Pageviews
techbooksforfree.com	100%

Subdomain	Pageviews per User
techbooksforfree.com	2

Subdomain	Reach
techbooksforfree.com	100%

How popular is techbooksforfree.com?

Period	Global Rank	Global Rank Delta
past 3 months	2475705	1271556
past month	2186968	-1157573
past week	1372090	-1290674

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	2794228	1078765	1	-51.913%	1.9	50%
30	2165731	-1948696	1	200%	2	80%
7	1034054	-2139139	3	600%	5	400%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	2465326	1422509	11	-67.586%
30	2286439	-784453	1	60%
7	1694982	-614443	2	50%

Techbooksforfree.com Safety Information

Overview

Last Updated: 04/28/2025

Overall result - techbooksforfree.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: 02/19/2025

techbooksforfree.com is safe.

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

Google Safe Search

Last Updated: 04/17/2017

techbooksforfree.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

techbooksforfree.com 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: 02/16/2021

techbooksforfree.com is safe.

McAfee assesses techbooksforfree.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 techbooksforfree.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/12/2019

techbooksforfree.com child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	techbooksforfree.com
Issuer Organization	Let's Encrypt
Issuer	R3
Algorithm	RSA-SHA256
Valid form	05/20/2024
Expiration	08/18/2024
Signed	Certificate is not self signed
Additional Domains	*.techbooksforfree.com techbooksforfree.com

Techbooksforfree.com Server Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

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

Last Update: 11/09/2024

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.
#

Techbooksforfree.com Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: TECHBOOKSFORFREE.COM
Registry Domain ID: 126705025_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.dynadot.com
Registrar URL: http://www.dynadot.com
Updated Date: 2024-12-10T00:16:16Z
Creation Date: 2004-08-07T20:45:35Z
Registry Expiry Date: 2026-01-01T04:59:59Z
Registrar: Dynadot Inc
Registrar IANA ID: 472
Registrar Abuse Contact Email: abuse@dynadot.com
Registrar Abuse Contact Phone: +16502620100
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS307.WEBSITEWELCOME.COM
Name Server: NS308.WEBSITEWELCOME.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-12-18T17:39:29Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Techbooksforfree.com HTML Validation

HTML Validation Tool

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).

Bad value “text/html; charset=ISO-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.

Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.

Bad value “Window-target” for attribute “http-equiv” on element “meta”.

The “center” element is obsolete. Use CSS instead.

The “width” attribute on the “table” element is obsolete. Use CSS instead.

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “h3” element is obsolete. Use CSS instead.

Attribute “bordercolor” not allowed on element “table” at this point.

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “p” element is obsolete. Use CSS instead.

End tag “br”.

The “align” attribute on the “div” element is obsolete. Use CSS instead.

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

Malformed byte sequence: “92”.

Duplicate ID “center-content-ad”.

Malformed byte sequence: “96”.

Malformed byte sequence: “93”.

Malformed byte sequence: “94”.

No “p” element in scope but a “p” end tag seen.

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

Warnings

The first occurrence of ID “center-content-ad” was here.

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

Techbooksforfree.com Desktop Insights

Last tested: 10/01/2016

Desktop

Desktop Speed

92%

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

Leverage browser caching

Desktop Resource Breakdown

Total Resources	34
Number of Hosts	12
Static Resources	17
JavaScript Resources	10
CSS Resources	4

Techbooksforfree.com Mobile Insights

Last tested: 12/13/2019

Mobile

Mobile Usability

64%

Use legible font sizes

Configure the viewport

Size tap targets appropriately

Size content to viewport

Mobile Speed

77%

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

Leverage browser caching

Optimize images

Minify CSS

Mobile Resource Breakdown

Total Resources	79
Number of Hosts	22
Static Resources	17
JavaScript Resources	13
CSS Resources	3

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Techbooksforfree.com Free Programming, SQL Data Coding, Computer Science. IT Books

Free Tech Book Downloads; Java, Linux, SQL Database, Perl/Python, C and C++, Microsoft, Programming, Security, Science ebooks, Free PDF, Ebooks & Manu...

Quick Summary

Techbooksforfree.com General Information

Techbooksforfree.com Safety Information

Techbooksforfree.com Server Information

Techbooksforfree.com Domain Name Information

Techbooksforfree.com HTML Validation

Techbooksforfree.com Desktop Insights

Techbooksforfree.com Mobile Insights

Techbooksforfree.com Nearest Competitors

Techbooksforfree.com Typos