SEO4Ajax review (2026): is the free plan enough?
Dynamic rendering service that serves JavaScript pages to bots
SEO4Ajax report card
Fair · out of 4.0 · graded Oct 23, 2026
Best for dynamic rendering for small JavaScript sites
SEO4Ajax crawls a JavaScript site with Chrome and serves cached snapshots to search and social bots, with a free plan for 1,000 pages a month. Every plan needs server configuration, SEO reports cost extra on the Premium versions, and leaving a yearly commitment early costs up to three months of fees.
Who SEO4Ajax is for
- Fits if you run a small JavaScript site under 1,000 pages and can edit its server config
- Works for sites that need search bots and social previews to see rendered pages
Who SEO4Ajax is not for
- Watch out: a yearly commitment is still charged monthly, and leaving early costs the lesser of three months of fees or half of what remains
- Pricey if you want the SEO reports, which need Premium at $10 to $66 a month more on a yearly commitment
- Tight if you go over your pages, at $1.50 per 1,000 extra on Project
- Not for you if you run more than 3 sites on Project, as plans cap sites at 3, 5 or 10
- Watch out: the 99.9% uptime SLA is an extra $39 or $79 a month on Growth and Business
Why SEO4Ajax gets a 2.2
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- CValue for moneyProject is $29 a month on a yearly commitment ($39 monthly) for 20,000 pages and 3 sites, between this category's cheaper quarter and its middle. The Premium version with SEO reports is $39, and a 99.9% uptime SLA is extra on Growth and Business.
- BFree plan and trialThe Developer plan is free for good with no card: 1,000 pages and 2,500 snapshots a month with community support, which covers a small JavaScript site.
- CFeaturesChrome snapshots served to search and social bots, capture hooks and rewrite rules, and a console showing bot activity, cache freshness, duplicates and broken links. It does dynamic rendering fully, but that's a smaller job, and SEO reports are Premium only.
- DEase of useNo rating on record. You add its snippet to Apache, Nginx or IIS, or a middleware for Express, Django, Rails or Java, before bots see anything.
- BPlatforms and integrationsWeb, with server snippets and middlewares for Apache, Nginx, IIS, Express, Django and Rails, plus Cloudflare and CloudFront guides. No desktop or phone app.
What these grades rest on. Graded from this listing, whose facts were read from SEO4Ajax's own pages on 23 October 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/seo4ajax#review"><img src="https://toolgpa.com/badge/seo4ajax.svg" alt="SEO4Ajax: 2.2 GPA on ToolGPA" width="196" height="56"></a>Where SEO4Ajax stands among technical SEO tools
SEO4Ajax's GPA of 2.2 is higher than 20 of the 83 other technical SEO tools we grade, and level with 20.
It stands best on free plan and trial (B, above 51 of 83) and worst on ease of use (D, above 0).
Its paid plans start at $29 a month, against a middle price of $22.41 for the category: 27 of the 52 others that charge start lower.
On features, ease of use and platforms it scores 2.0 out of 4. 27 tools score higher and cost less.
Each grade against the category
Every bar is all 84 technical SEO tools we grade, cut by the letter each got. SEO4Ajax’s own letter is outlined.
- CValue for moneyAbove 9 of 83, level with 33
- BFree plan and trialAbove 51 of 83, level with 10
- CFeaturesAbove 10 of 83, level with 66
- DEase of useAbove 0 of 83, level with 6
- BPlatforms and integrationsAbove 27 of 83, level with 56
Price against what you get
Each dot is one of 73 technical SEO tools. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep SEO4Ajax, or make your own?
Keep it
Nothing SEO4Ajax does is plain enough to make in a weekend. The 2 things listed below take a company.
That makes this kind of software worth paying for, not this one in particular: 43 of the 83 other technical SEO tools grade higher. It costs $348 a year.
What you could not
- A crawler that checks every page of a site.
- It plugs into other products, Apache, Nginx and IIS among them, and has an API.
What this rests on. SEO4Ajax’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is SEO4Ajax?
SEO4Ajax is a dynamic rendering service for JavaScript sites built with React, Vue, Angular and other frameworks. It crawls the site with Chrome, keeps rendered snapshots in a cache and serves them to search engine and social network bots through a few lines of server configuration. Its console reports bot activity, cache freshness, duplicates and broken links.
Worth knowing
- A yearly commitment is still charged monthly, and cancelling it early costs the lesser of three months of fees or half of what remains.
- Pages beyond the allowance cost $1.50 per 1,000 on Project, $1.00 on Growth and $0.50 on Business.
- SEO reports need the Premium version of each plan, which costs $10 to $66 a month more on a yearly commitment.
- Plans cap the number of websites at 3, 5 or 10, and a 99.9% uptime SLA is an extra $39 or $79 a month on Growth and Business.
Key features
- Dynamic rendering for bots
- Pages are captured with a current version of Chrome and the cached snapshots are served to search engines such as Google and Bing and to social networks.
- Server snippets and middleware
- The console gives configuration snippets for Apache, Nginx and IIS, and there are middlewares for Express, Django, Rails and Java plus guides for Cloudflare and CloudFront.
- Dedicated capture browsers
- Each plan has dedicated browsers that capture pages in parallel; one browser averages about 200,000 captures a month, enough to refresh a Project site every 3 days.
- Console metrics
- Shows bot activity, cache freshness, duplicate pages and broken links for each site, with metadata exports to CSV.
- Capture hooks and rewrite rules
- Control how pages are captured and return HTTP errors or redirects to bots, page by page or by URL pattern.
- SEO reports
- Premium plans add reports on technical issues that can hurt indexing, such as broken links, duplicates and invalid hreflang tags.
SEO4Ajax pricing
As of Oct 23, 2026, SEO4Ajax has a free plan, and paid plans start at $29 per month for 20,000 pages, yearly commitment ($39 monthly).
- Starts at
- $29 per month for 20,000 pages, yearly commitment ($39 monthly)
- Free plan
- Developer plan: 1,000 pages and 2,500 snapshots a month with community support, free for good and with no credit card needed.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Developer | $0 | 1,000 pages and 2,500 snapshots a month, with community support. |
| Project | $29per month for 20,000 pages, yearly commitment ($39 monthly) | Up to 3 websites, 1 dedicated browser and email support within 48 hours. The Premium version with SEO reports is $39 ($52 monthly). |
| Growth | $99per month for 100,000 pages, yearly commitment ($129 monthly) | Up to 5 websites, 5 dedicated browsers and email support within 24 hours. The Premium version with SEO reports is $132 ($172 monthly). |
| Business | $199per month for 500,000 pages, yearly commitment ($249 monthly) | Up to 10 websites, 10 dedicated browsers and email support within 24 hours. The Premium version with SEO reports is $265 ($332 monthly). |
| Custom Plan | Custom | For more than 500,000 pages or 10 sites, or custom support, SLA or browser counts. |
Read from seo4ajax.com on Oct 23, 2026. Prices change, so confirm with SEO4Ajax before you buy.
Ways to pay less
- Annual discountSave 20% to 26% with a yearly commitment
Project is $29 a month on a yearly commitment instead of $39 month to month, Growth $99 instead of $129, and Business $199 instead of $249.
Stated on seo4ajax.com
Works with
- Apache
- Nginx
- IIS
- Express
- Django
- Ruby on Rails
- Cloudflare
- Amazon CloudFront
SEO4Ajax alternatives
- SEO4Ajax vs Prerender.io
Free trial · from $59/mo
- SEO4Ajax vs Headless-Render-API
Free plan · from $9/mo
- SEO4Ajax vs Alli AI
Free trial · from $249/mo
Common questions
Does SEO4Ajax have an Android app?
No Android app was listed when its pages were read on Oct 23, 2026. SEO4Ajax is listed for Web.
Does SEO4Ajax have an iPhone app?
No iPhone app was listed when its pages were read on Oct 23, 2026. SEO4Ajax is listed for Web.
Is SEO4Ajax open source?
SEO4Ajax is not described as open source on its own site, as read on Oct 23, 2026.
Does SEO4Ajax have an API?
Yes. SEO4Ajax offers a public API, according to its own site.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 23, 2026.