Alli AI vs SEO4Ajax (2026): which should you pick?

Pick Alli AI if

• Fits if you're an agency making on-page changes across client sites on different CMSs
• Makes sense if your site runs on a JavaScript framework that AI crawlers can't read

Look elsewhere if

• Pricey if you run one site, at $249 a month billed annually for the entry plan
• Watch out: changes live in Alli's snippet or plugin, not in your site's own code
• Tight if you outgrow Business, with 5 sites, 500 keywords and 1,250 pages before add-ons
• Skip it if you need the API or white-label hosting, which start on Agency at $499 a month

Pick SEO4Ajax if

• 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

Look elsewhere if

• 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

Alli AI

• There is no free plan; every plan starts with the 10-day trial.
• Business covers 5 sites, 500 keywords and 1,250 pages; extra sites start at $32.50 a month and 100 more keywords at $20.83 on annual billing.
• API access and white-label snippet hosting start at Agency; a fully white-labeled dashboard needs Enterprise.
• Changes are delivered through Alli's snippet, plugin or tag manager tag, not written into the site's own code.

SEO4Ajax

• 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.

Alli AI

Bulk on-page changes

Writes and deploys titles, meta tags and other on-page fixes across a whole site or a portfolio of sites, without touching the CMS or source code.

Pre-rendering for AI crawlers

Serves a pre-rendered HTML version of each page to 50+ crawlers, including GPTBot, ClaudeBot, Gemini and Perplexity, alongside Google and Bing.

LLM Mode and AI bot monitor

Shows the version of a page that AI crawlers receive, and a live view of AI bot traffic to the site.

Schema and internal links

Generates and places schema markup automatically, and suggests internal links between pages.

Site speed optimizer

Applies page-speed optimizations that Alli says cut load times by up to 80%, included from the Business plan.

Rank tracking and title tests

Tracks rankings for 500 to 5,000 keywords by plan, and runs automated A/B tests on page titles.

SEO4Ajax

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.

Alli AI

• Business$249

  per month for 5 sites, billed annually ($299 billed monthly)

  5 sites and team members, 500 tracked keywords and 1,250 pages, with AI crawler pre-rendering, the speed optimizer and a weekly crawl.

• Agency$499

  per month for 15 sites, billed annually ($599 billed monthly)

  15 sites and team members, 2,000 keywords and 5,000 pages, plus API access and white-label snippet hosting.

• EnterpriseCustom

  50 sites and team members, 5,000 keywords, 20,000 pages and a fully white-labeled dashboard. Quoted after a demo.

SEO4Ajax

• Developer$0

  1,000 pages and 2,500 snapshots a month, with community support.

• Project$29

  per 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$99

  per 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$199

  per 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 PlanCustom

  For more than 500,000 pages or 10 sites, or custom support, SLA or browser counts.

Alli AI

• Annual discount

  Save up to 17% with annual billing

  Alli AI's pricing page lists Business at $2,990 a year ($249 a month) against $299 billed monthly, a stated saving of $598 a year.

SEO4Ajax

• Annual discount

  Save 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.