SEO Browser Extensions
MozBar: what it does, what it costs
Domain and Page Authority on top of the search results, free with a Moz account.
MozBar at a glance
Every row is a verified field or an honest absence. A row is dropped rather than filled with an em dash, so the length of this table says how complete the record is.
| What it is | Domain and Page Authority on top of the search results, free with a Moz account. |
|---|---|
| Category | SEO Browser Extensions |
| Best suited for | Link prospecting where you need to sort candidates fast |
| Starting price | Free with a Moz account; MozBar Premium is included with Moz Pro from $49/month |
| Free plan | Yes |
| Free trial | None offered |
| Main strength | Authority metrics for a whole SERP at a glance |
| Main limitation | DA and PA are proprietary proxies, routinely mistaken for ranking factors |
| Evidence | Primary-source researched |
| Closest alternatives | Detailed SEO Extension, Moz Pro, Ahrefs, Majestic |
| Pricing checked | 19 August 2026 |
| Record checked | 19 August 2026 |
What MozBar is
MozBar's job is one number, or rather two. It overlays Domain Authority and Page Authority on the search results, so you can look at a SERP and see the authority profile of everything ranking on it without opening a single tab. For competitive assessment and link prospecting, that habit is why the extension has survived as long as it has.
Those metrics are Moz's own, not Google's, and it is worth being clear about what that means. DA is a comparative model of link strength on a 100-point scale — useful for asking whether a prospect is stronger or weaker than what you already have, and misleading if you treat it as a ranking factor or a target. It is a proxy, and it is best used to sort a list rather than to grade a site.
Structurally it is a free extension with a paid layer attached to something else. MozBar itself needs only a free Moz account. MozBar Premium is not sold separately — it appears in Moz Pro's plan comparison as an included feature, so upgrading the extension means subscribing to the platform, which starts at $49 a month.
What you can use it for
- See Domain and Page Authority for every result on a search page
- Judge quickly whether a link prospect is stronger or weaker than your own site
- Check page-level SEO elements and link attributes on a live page
- Sort a prospect list by an authority proxy before doing real evaluation
The features that matter for SEO
Each one says what it does and the SEO job it serves. A vendor feature list without that second half tells you nothing you could not read on their own site.
Authority metrics on the SERP
Overlays Domain Authority and Page Authority on every result in a search page.
The reason to install it. Reading the authority profile of a whole result page at once is much faster than checking ten domains individually, and it is usually enough to decide whether a query is worth pursuing.
DA and PA are Moz's models, not Google signals. Treat them as a way to rank a list, not as a target.
Page element analysis
Shows on-page elements and attributes for the page you are on.
Covers the routine on-page check, though single-purpose inspectors go deeper on things like HTTP-level robots directives.
Link highlighting
Distinguishes followed, nofollowed, internal and external links on a page.
The quick version of the question that matters when evaluating a page you hope to get a link from.
Custom searches
Runs searches by engine, country, region or city from the bar.
Useful for local work, where the result you personally see is not the result the client's customers see.
MozBar Premium
Adds keyword difficulty, page optimisation and SERP analysis in the extension.
Bundled with Moz Pro rather than sold separately, so it is a reason to value a Moz Pro subscription more highly, not a purchase of its own.
Pricing and limits
Starting price: Free with a Moz account; MozBar Premium is included with Moz Pro from $49/month Checked 19 August 2026 Vendor’s own pricing page
| Plan | Price | What it includes |
|---|---|---|
| MozBar | Free |
|
| MozBar Premium Add-on | Included with a Moz Pro subscription /mo | Not sold on its own. It appears as an included feature in Moz Pro's plan comparison, alongside the Standard, Medium and Large tiers, so the cost of Premium is the cost of a Moz Pro plan — which starts at $49 a month. See the Moz Pro listing for the full ladder. |
Add-on rows are only ever charged on top of a plan, so they are excluded from the entry price used in the directory’s price filter.
Strengths and limitations
Strengths
- Authority metrics for a whole SERP at a glance
- Free with only a Moz account required
- DA is widely understood, which makes it a common language with clients and prospects
- Local and international SERP switching built in
- Long-established, from a vendor that has maintained its link index for two decades
Limitations
- DA and PA are proprietary proxies, routinely mistaken for ranking factors
- Chrome only
- Premium cannot be bought on its own — it requires a Moz Pro subscription
- A free Moz account is required, unlike some rival extensions
- Thinner on technical on-page diagnostics than single-purpose inspectors
Who it is for, and who should skip it
Worth it if
- Link prospecting where you need to sort candidates fast
- Sizing up a competitive result page before committing to a keyword
- Anyone already on Moz Pro, who gets Premium included
Skip it if
- You want technical on-page diagnostics rather than authority scores
- You use Firefox
- You would rather not add another proprietary authority metric to your reporting
Alternatives to MozBar
Each one answers when it is the better choice, which is the only thing a list of competitors is useful for.
- Detailed SEO Extension Choose it when you want deeper on-page and technical inspection, free and with no account.
- Moz Pro Choose it when you want the platform behind the metrics, and MozBar Premium along with it.
- Ahrefs Choose it when you want the strongest link index rather than an authority score overlay.
- Majestic Choose it when you prefer Trust Flow and Citation Flow as your link quality proxy.
Sources and verification
Last verified 19 August 2026 1 day ago
Pricing 19 August 2026 Plans 19 August 2026 Features 19 August 2026
- Moz Pro pricing Pricing page verifies pricing, plans checked 19 August 2026
What changed
- 19 August 2026 — Kept as a separate listing from Moz Pro. It has its own browser-extension identity and its own free tier, and people look for it by name — but Premium's price is Moz Pro's, and none of Moz Pro's tiers are restated here as if they were the extension's own.
Questions
Is MozBar free?
Yes, with a free Moz account. MozBar Premium — which adds keyword difficulty, page optimisation and SERP analysis — is not sold separately; it is listed as an included feature of Moz Pro, which starts at $49 a month. Verified on 19 August 2026.
Should I trust Domain Authority?
As a comparative signal, yes. As a target, no. DA is Moz's own 100-point model of link strength, not anything Google publishes or uses, so it answers "is this prospect stronger than what I already have" well and "why am I not ranking" not at all.
MozBar or the Detailed SEO Extension?
They do different jobs and cost nothing, so most people run both. MozBar puts authority metrics on the search results; Detailed inspects the page in front of you — headings, schema, hreflang, robots headers. Authority assessment versus on-page diagnostics.