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Is H1-H6 Tag Tester safe to install?

H1-H6 Tag Tester asks for 4 browser permissions and 1 site pattern. We do not audit code and we do not judge intent; what we can show is what the listing declares and whether that has changed while we have been watching.

H1-H6 Tag Tester

Chrome extension · Productivity · Tools

Open in the Chrome Web Store
What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

At a glance

Facts, not a score: an ad blocker needs every page and a theme needs nothing, so one number would be wrong about both. Each fact links to its detail.

Site access
Access to every site
Data collection
2 kinds of data declared
Publisher
No store badges
Audience
109 users · 5.0/5

What data it declares

The developer declares that it collects these kinds of data:

The developer also certifies that your data is not sold to third parties outside approved uses, not used for purposes unrelated to the extension's core function, and not used to decide creditworthiness or lending.

The listing links to a privacy policy.

This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.

What Chrome asks you to allow

When you add it, Chrome asks you to allow it to:

Derived from the manifest by Chrome's documented rules; the dialog's exact wording depends on your Chrome version and language. Chrome asks again if an update requests more.

What it can reach

Every site you visit. This extension can read and change the content of any page you open. What access to every site means

Worth knowing

Routine for an extension

Pages it runs its code on

It runs its own code on every page you open: the manifest declares a content script for all sites.

A content script is code the extension injects into pages matching these patterns. On those pages it can read and change what you see, whether or not a host permission is listed above.

How usual this is for its category

In Productivity · Tools, 20% of extensions ask for access to every site. This one: Access to every site.

The typical extension there declares 3 browser permissions; this one declares 4 browser permissions.

Counted over the live extensions of the same category after our latest full pass of the store. A share is context, not a verdict: what is normal depends on what the extension is for.

Who uses it and how it is kept up

109 users

Users
unchanged since 01.09
98-113 · 30 readings
  1. 2026-09-01109
  2. 2026-09-03110
  3. 2026-09-04100
  4. 2026-09-06101
  5. 2026-09-0798
  6. 2026-09-08100
  7. 2026-09-1098
  8. 2026-09-13101
  9. 2026-09-1599
  10. 2026-09-17104
  11. 2026-09-20103
  12. 2026-09-25101
  13. 2026-09-27102
  14. 2026-10-04109
  15. 2026-10-08110
  16. 2026-10-09107
  17. 2026-10-10103
  18. 2026-10-16109
  19. 2026-10-17113
  20. 2026-10-18111
  21. 2026-10-19112
  22. 2026-10-21113
  23. 2026-10-22112
  24. 2026-10-23109
  25. 2026-10-24108
  26. 2026-10-25109
  27. 2026-10-27108
  28. 2026-10-29107
  29. 2026-10-31109
  30. 2026-11-01109

What the store shows

The store shows none of its badges on this listing. Most listings carry none.

Has it asked for more over time?

This is the question a permission list on its own cannot answer. An extension that shipped narrow and widened later is a different proposition from one that always asked for the same thing.

The permissions this extension requests have not changed since we started watching it.

Who publishes it

The store lists no publisher name. This listing has been in the store since 2024-11-01 and was last updated on 2024-11-01.

Similar extensions that ask for less

Listings close to this one in what they say they do, which declare less reach. Less reach is not a verdict on either: compare what each needs for the job.

  1. Heading Structure Viewer Runs its code on every site · No permissions declared 9 users
  2. Highlight HTML Headings No site access · 2 permissions 2k users ★ 5.0
  3. Headline Tagger No site access · 2 permissions 8 users

How to check or remove it in Chrome

  1. Type chrome://extensions in the address bar and find the extension in the list.
  2. Open its details. The site access setting shows where it can run; set it to run only on click and it reaches a page only after you press its icon.
  3. To uninstall it, choose Remove on the same page.

Questions people ask

What can H1-H6 Tag Tester access?
Every site you visit. This extension can read and change the content of any page you open. It declares 4 browser permissions.
What data does H1-H6 Tag Tester collect?
The developer declares that it collects these kinds of data: Web history, Website content. This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.
Has H1-H6 Tag Tester asked for more permissions over time?
The permissions this extension requests have not changed since we started watching it.
Does H1-H6 Tag Tester publish a privacy policy?
Yes, the store listing links to a privacy policy.

We read the public store listing up to 2 times a day and keep what it declared. We do not install the extension, do not audit its code, do not judge its intent and publish no contact details for its developer. Last read on 2026-11-01.

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