duolingo.com

Ranked #282 of 300 on the Leaderboard. Analyzed .

Index Quotient

56.35

See it on the LeaderboardAnalyze again
82.60
Technical
46.07
Content
18.74
Answers
49.43
AI
84.92
Authority

Technical Health

82.60

Whether search engines can fetch, trust, and quickly load the site.

Strengths

  • CrawlabilityStrong

    Crawlers are welcome here: a sitemap points the way, links work, and pages are allowed into the index.

  • URL and canonical hygieneStrong

    URLs are clean and consistent, each page has one address, and missing pages say so.

  • Safe to visitStrong

    Nothing marks this site as unsafe to visit.

Opportunities

  • SpeedPartial

    Pages load reasonably but not quickly, so visitors wait longer than they need to.

  • Secure connectionPartial

    The connection is encrypted but not fully hardened: steering every visit onto it and sending the standard security headers would finish the job.

Content Quality

46.07

Whether pages say clearly what they are about, in a form machines can read.

Strengths

  • FreshnessStrong

    Something here was published or updated recently, and the site says when.

Opportunities

  • Depth and readabilityWeak

    Pages are thin: there is little text for a search engine to judge them on, and what is there does not always match the title.

  • Titles and descriptionsPartial

    Titles are mostly in place; descriptions and link previews are patchier, and each page wants ones of its own.

  • HeadingsWeak

    Pages lack a main heading, or the headings they have are out of order; a page's structure should be readable from its headings alone.

Answer Readiness

18.74

Whether content is shaped and marked up so an engine can lift a direct answer.

Opportunities

  • Structured dataWeak

    Little structured data is present, so engines have to infer what each page is rather than being told.

  • Question-and-answer shapeMissing

    No page poses a question and answers it directly beneath, which is the shape answer engines look for; adding those pages is where this starts.

  • Navigation aidsMissing

    Pages give no sign of where they sit in the site; a breadcrumb trail on interior pages, in text and in markup, is the fix.

AI Visibility

49.43

Whether AI systems can reach, read, and confidently identify the site.

Strengths

  • AI accessStrong

    AI crawlers are allowed in, and pages may be quoted in AI answers.

Opportunities

  • Readable without JavaScriptWeak

    Much of the content only appears once scripts run, so a crawler that reads the raw page finds little.

  • IdentityWeak

    Little here says who is behind the site, in the markup or on the pages themselves.

  • Authorship and sourcingMissing

    No article names an author or a date, and nothing links out to a source; a byline and a date on every article is the place to start.

Authority

84.92

Whether the wider web vouches for the site.

Strengths

  • BacklinksStrong

    Plenty of other sites link here, including ones that matter.

  • TrafficStrong

    The site has a large audience.

  • Domain historyStrong

    The domain has a long history, and history counts.

Opportunities

Nothing here to work on. The points left are the ones only the web's largest sites earn.

Nearby on the Leaderboard

  1. #281radix-ui.com56.88
  2. #282duolingo.com56.35
  3. #283robinhood.com55.11

Scores reflect what IndexBot could read from duolingo.com's available pages on .

IndexBot

IndexBot is the crawler behind SEO Leaderboard. It visits a website only when someone submits that domain, reads it the way a search engine would, and leaves.

What it does

  • Fetches the homepage, robots.txt, the sitemap, and up to 24 more pages, at most four at a time.
  • Reads raw HTML only. It runs no JavaScript and loads no images, fonts, or scripts.
  • Visits a domain at most once every 24 hours, however many people submit it.
  • Stores what it measured, never full copies of pages.

How it identifies itself

Mozilla/5.0 (compatible; IndexBot/1.0; +https://seoleaderboard.com/bot)

How to let it in

Bot protection often turns IndexBot away before it reads anything, and the domain then cannot be scored. If you run the site, allow the User-Agent IndexBot. In Cloudflare that is a WAF skip rule; most other tools have the same idea under a different name.

(http.user_agent contains "IndexBot")

IndexBot has no fixed IP range to allow instead, so the User-Agent is the only thing to match on. It never tries to disguise itself as a browser, and the limits above are the whole of what it asks for.

How to keep it out

IndexBot obeys robots.txt. Add this and it will not read your site, and your domain cannot be scored.

User-agent: IndexBot
Disallow: /

Questions

Write to bot@seoleaderboard.com.