Detailed SEO Extension vs Keyword Surfer (2026): which should you pick?

Pick Detailed SEO Extension if

• Fits if you check titles, headings and schema on single pages and don't want to read the source
• Works for checking hreflang on a multi-language site, alternate by alternate

Look elsewhere if

• Skip it if you want search volumes, rankings or backlinks, as it has none of its own
• Too light for whole-site audits, since it inspects one page at a time
• Not for you if you browse in Safari or Edge, as only Chrome and Firefox are listed
• Watch out: the changelog's last entry is December 2024, though both stores show an update in 2026, and the interface is English only

Pick Keyword Surfer if

• Fits if you want a keyword's volume while you're searching Google anyway
• Works for writers gathering related keywords into a list before drafting

Look elsewhere if

• Skip it if you use Firefox or Safari, as it's Chrome and Chromium browsers only
• Too light for keyword research away from Google, since there's no database to search on its own
• Not for you if you want page checks like titles, headings or schema, which it doesn't do
• Watch out: the store listing says it handles location, user activity and website content data

Detailed SEO Extension

• It inspects one page at a time and has no keyword volumes, rankings or backlink data of its own.
• It is listed for Chrome and Firefox only; the vendor names no Safari or Edge version.
• The changelog's latest entry is December 2024, though both stores show version 2.2.7 updated in 2026.
• The interface is in English only, according to the Chrome Web Store listing.

Keyword Surfer

• It runs in Chrome and other Chromium browsers only; Surfer lists no Firefox or Safari version.
• It works on the Google results page and has no keyword database to search on its own.
• The store listing says it handles location, user activity and website content data.
• Surfer's paid content editor and AI visibility tools are a separate product with their own plans.

Detailed SEO Extension

Page overview

Shows the title tag, meta description, meta robots and X-Robots-Tag header for the page you are on, with a quick link to its sitemap.xml.

Headings view

Lists every heading tag indented by level, with a button that copies them all to the clipboard.

Links and images export

Exports all links on a page and shows whether each is nofollow or sponsored; image URLs can be downloaded as a CSV file.

Schema and hreflang

Shows a page's structured data markup and all its hreflang alternates, with status codes and a check that each alternate links back.

People Also Ask extraction

An option on the Advanced tab extracts People Also Ask questions from Google results, including several levels deep.

Right-click shortcuts

Open the current page or site in Ahrefs, Moz, Majestic, Semrush, Similarweb or Archive.org, or run a site: search, from the context menu.

Keyword Surfer

Volume and CPC in Google

Shows search volume and cost per click for the query in a side panel on the Google results page.

Keyword ideas

Lists keyword suggestions and related terms with their search volumes and an overlap score against the query.

Ranking page metrics

Estimates traffic for the pages in the results and shows their word count and how many times they use the keyword.

Collections and CSV export

Save keywords into folders to come back to without searching again, and export each folder as a CSV file.

Data for 70 countries

Search data can be set to any of 70 countries to match where an audience is.

Keyword Surfer in ChatGPT

The store listing says the extension also works in ChatGPT to rewrite text to sound more human and score how human it reads.

Detailed SEO Extension

• Free$0

  Every feature of the extension, free to install from the Chrome Web Store or Firefox Add-ons.

Keyword Surfer

• Free$0

  Search volumes, CPC, keyword ideas, page metrics and keyword collections in Google results, free from the Chrome Web Store.