Which cookies we set, and how to refuse them.
Analytics, anti-spam, and the tags that tell us which of our own ads worked.
Last updated 28 August 2026
A cookie is a small file a website stores in your browser. This page lists every cookie this site is responsible for. It sits alongside the privacy policy, which covers information more broadly.
What we set
Analytics, from Google Analytics
These tell us which pages people actually read and which ones they leave immediately. We use that to decide what to write and what to fix. They do not tell us who you are.
- _ga distinguishes one browser from another. Expires after two years.
- _ga_H4N8Z5QBVX keeps track of the current session. Expires after two years.
Anti-spam, from Cloudflare Turnstile
Our contact forms are protected by Cloudflare Turnstile, which works out whether a submission comes from a person or a bot. Without it the forms fill up with spam within days. Its cookies are set only in connection with that check and are not used to track you around the web.
Advertising measurement, from Google Ads
We run ads for our own agency. When someone arrives from one of them and later fills in a form, these cookies are what tell us the ad was worth running. Without them we would be guessing at which half of the budget works.
- _gcl_au records that you arrived from one of our ads, so a later form submission can be matched back to it. Expires after three months.
If we run campaigns on Facebook or Instagram, the Meta pixel does the same job for those and sets cookies named _fbp and, if you came from a Meta ad, _fbc. It is only loaded while those campaigns are running.
Campaign details we store outside cookies
When you land on the site we read the campaign tags in the address bar, things like utm_source and gclid, along with the page you landed on and the site that sent you. We keep that in your browser's session storage for the length of your visit, and attach it to a form if you submit one, so we know which campaign earned the enquiry. It is cleared when you close the tab and it contains nothing about you personally.
What we do not set
No retargeting audiences. We measure whether our ads produce enquiries; we do not use any of the above to follow you around the web and show you our ads again. No third party trackers beyond the ones named on this page. We are not selling anything about your visit to anyone.
Turning them off
Every major browser lets you block or delete cookies, either for all sites or for this one specifically. Look under settings for privacy, cookies, or site data.
To opt out of Google Analytics everywhere rather than just here, Google publishes a browser add-on for that purpose.
Blocking analytics or advertising cookies costs you nothing on this site. Blocking the Cloudflare cookies may stop the contact forms from working, since the anti-spam check will not be able to complete. If that happens, email us directly at contact@thethinkweb.com and we will pick it up the same way.
Do Not Track
Browsers can send a Do Not Track signal, but there is no agreed standard for what a site should do with it, so this site does not currently respond to it. The list above is the complete picture either way.
Changes
If we add or remove a cookie we will update this page and change the date at the top.
Contact
Questions about any of this go to contact@thethinkweb.com, or call (423) 402-0749.
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