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Linklok URL - Secure download links on your site

What is Linklok URL?

Linklok URL allows you to place links to download files (or embedded images etc) on your website while securely hiding the true location of the files. The actual files linked to can actually be stored anywhere on your server (within or outside of webroot) or with Amazon S3, Dropbox, Backblaze B2 Cloud Storage, Digital Ocean Spaces or Google Cloud Storage. Links are automatically authenticated using secure hashing and can be set to expire between 1 minute and several years after creation if required. Links can also be locked to the users IP address ensuring they can't be shared even before they expire! There is basically no way an internet user can find out the actual location of your files.

What else can it do?

As well as securing links on your pages Linklok URL can also be used with a form to collect user data and email secure links to the user. This way you can be sure to get a valid email. An optional captcha can be used to stop bots. When used with a form Linklok URL can automatically add the user to your mailing list with AWeber, Mailchimp, GetResponse and ARP Reach currently supported. There is an option to block free type emails such as hotmail or yahoo and even to watermark PDF downloads with the users email address. You can download the manual below to read about other options.

Example 1

Linklok URL can create links within your page dynamically as the page is created. The following download link securely hides the true location on the server where the file is stored.


Example 2

The following image also has the location hidden and has a 10 minute expiry time. This means that if someone copies the link and places it on another site (a forum for example) it will stop working after 10 minutes. A user accessing the image correctly from our site will have no problems seeing the image even if they refresh the page.

example secure image

Example 3

Linklok URL can also lock links to the IP address of the user. This feature can of course be combined with an expiry time as well. To handle ISP's who change their IP address for each access you can adjust how many parts of the IP address to verify. We suggest checking only the first 3 parts as in the example below.


Example 4

Linklok URL can work with a form to email the user the secure download link(s). The example form below will send you a link to download the manual for Linklok URL. Be sure to enter your real email address (which we won't use for any purpose) otherwise you won't receive the link. The link will be valid for 60 minutes and is not IP locked. We also demonstrate the PDF watermarking feature of Linklok URL by adding your email to each page of the PDF file.



Comprehensive manual

Linklok URL manual
Want to know more? Why not download the manual so that you can see what Linklok URL can do for you. We provide extensive documentation in PDF format for our products and not just a quick readme text file.

Linklok URL Manual

As well as the manual you can check our knowledge base and of course direct support.

Wordpress Support

We include a Wordpress plugin providing easy to use short codes which can be used to add download links to your WP pages and posts. Please note that Linklok URL still needs to be setup on your server in the standard way before you can use the plugin. The plugin is not suitable for use if your site is hosted by

Feature List

Linklok URL has a huge number of features including those listed here. You can download the comprehensive PDF manual for full details.
Easy to install on almost any server supporting PHP. No PHP knowledge is needed.
No database or cookies needed
Adding Linklok URL to a page is a breeze. A line is added to the top of the page which enables Linklok and then each link you want to secure is just a simply function call added to your existing links.
Securely hides the true location of files on your server. Links do not contain the location of the files on your server, not even in encrypted form.
Your download files can be stored on your server, Amazon S3, Dropbox, Backblaze B2 Cloud Storage, Digital Ocean Spaces or Google Cloud Storage. New Feature
Files can be stored outside of your webroot if supported by your server.
Download links generated by Linklok can have an expiry time set which can be from minutes up to several years. They can also be set to never expire in which case they simply hide the location of the file on your server.
As well as the expiry time set in the links Linklok can also IP lock them to the user.
Can work with a form of your own design to can collect user data and email out one or more download links. These links can be time and IP locked if required. The form data submitted is forwarded to you by email together with the users IP and optionally the IP country. Form data can also be logged in a text file if required. Using this method only users who enter a real valid email address will get your links.
Forms can use the built in CAPTCHA code field to stop spam
Can optionally block free or other types of email addresses from receiving the download links. This helps to ensure that you get valid emails where clients can really be contacted.
Can stop bandwidth theft (anti leeching)
Links can point to an html or PHP page on your server instead of a download. However please note that the security only applies to the page pointed to and not onward links from that page.
Linklok URL can log to a text file all form submitted data and downloads.
A password protected form built in can be used to manually email secured links to any email address.
Automatically have users who fill in Linklok forms added to your mailing lists. Built in support for AWeber, Mailchimp, ARP Reach and GetResponse.
Linklok API allows for advanced use in PHP applications. If you are a PHP developer you can call the Linklok URL API to create links
Emailed links can use the URL shortening service. This is useful when you need to send emails in the text format as it keeps the link short and can be used for analytics.
Your buyers can download directly to Dropbox if they wish. See our knowledge base article which explains how to use Linklok with the Dropbox Saver system.
PDF Watermarking. You can optionally have PDF files watermarked with the users email address when using the email form feature. Many options are provided allowing you to specify the style and position of the watermark which pages it will appear on.
GEO-IP features allow you to detect the users Country from their IP address so you can control what is displayed on your pages. This product includes GeoLite2 data created by MaxMind, available from
Linklok URL forms can store user details in Sitelok.
Option to send emails via Sendgrid for great deliverability
Wordpress plugin provides shortcodes for use in your WP pages and posts. Please note that Linklok still needs to be installed on your server in the standard way.
Regular updates. See version history.
Detailed PDF manual and great support


Linklok works on most Linux or Windows servers whether shared or dedicated. Just check that the server has PHP 5.5 to PHP 8.1 (most do). We can recommend A2 Hosting for use with our website scripts but most hosting plans are fine. We advise clients to download and read the manual before purchasing.

Please note that closed web creator sites like Wix, Weebly etc are not supported as they do not allow addons to be used.

Your level of technical support and customer service is remarkable. It is a real joy to deal with a company such as yours with a true dedication to excellence!!!

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Jorge G

You have gone above and beyond the call of duty Adrian.  You were patient, and understanding. Linklok works superbly.  If anyone wants to know how you stand behind your product, please have them email me and I will gladly tell them that you are a man of honor.  As a West Pointer, that quality is priceless to me.

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Joshua D

The best scripts and support I've encountered. Adrian is awesome!

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Buy Linklok URL V3.7

Linklok URL costs just $29.95 plus VAT where applicable (for use on one domain) and is available for immediate download after purchase. It's a one off fee and not a subscription. The purchase includes one year of free upgrades and support. If in the future you require additional licenses these are available at a discount of 50% (contact us for details). If you would like more information on Linklok, please feel free to get in touch through our contact page, where we will be more than happy to assist you with your query.

Linklok URL reviews on Hotscripts
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