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Market/Categories/Learning & Education/InterSub

Independent product intelligence · Worldwide · 2026-05-01 → 2026-07-31

InterSubintersub.cc

InterSub is a browser extension that enhances language learning through AI-powered dual subtitles and instant translations on major streaming and educational platforms. It supports over 30 languages and works with platforms like YouTube, Netflix, Prime Video, and more.

Learning & Educationintersub.ccTracked since 2026-08-211 discovery source
2.3KBacklinks
175Referring domains
26Domain authority
+8.7%Referring domains · 90 days

Authority & distribution

How strong is InterSub’s web footprint?

Backlinks measure accumulated distribution; referring domains show how broadly that authority is spread. Both are observable on the open web, so both are published for every product here.

Backlinks

2.3KCurrent snapshot

Referring domains

175Current snapshot

Authority

26Domain authority · category median 21

90-day move

+8.7%Referring domains, last 90 days
At 26, InterSub sits above the 21 median for its category.

Trajectory · Pro

The counts above are the latest of 370 daily observations. The curve through them is on the full profile.

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Traffic & engagement

Where InterSub ranks

Measured · Pro

Measured for this product: global rank, country rank and category rank.

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AI referral visibility

Which AI assistants are already sending InterSub traffic?

Measured · Pro

Measured for this product: AI referral traffic, which assistants refer it and which pages those referrals land on.

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Product profile

What InterSub is selling.

Traffic makes more sense when you can connect it to the actual product promise.

“InterSub”

InterSub is a browser extension that enhances language learning through AI-powered dual subtitles and instant translations on major streaming and educational platforms. It supports over 30 languages and works with platforms like YouTube, Netflix, Prime Video, and more.

Learning & EducationSeen 2026-08-21 → 2026-08-21Coverage tier C

What we have measured

4 of 8 signal groups are available for this product: identity, authority and backlinks, AI referrals, search demand.

Not measured for this domain: traffic and engagement, audience demographics, country distribution, acquisition mix. Those sections are left out of the page rather than filled with estimates.

Canonical website: https://intersub.cc

Observed across 1 discovery source.

Research questions

What the evidence answers about InterSub.

Every answer is tied to a source we collected, and the questions with no evidence behind them are left unanswered rather than guessed.

What does InterSub do, and what problem does it solve?

InterSub is a browser extension that provides AI-powered dual subtitles and instant word translations to enhance language learning while watching content on major streaming and educational platforms. It helps users learn new languages more effectively by making video content more accessible and interactive.

What features does InterSub offer?

InterSub offers AI-assisted dual subtitles, instant translations via hover, a personal wordbook for vocabulary tracking, and mobile integration with apps like Anki. It supports multi-platform use across YouTube, Netflix, Prime Video, and educational sites.

What is InterSub used for, and in what situations?

InterSub is used for language learning while watching videos. It is particularly useful when consuming content on platforms like YouTube, Netflix, Prime Video, and online courses on Coursera or Udemy, allowing users to watch with subtitles in both their native and target languages.

Who is InterSub designed for?

InterSub is designed for language learners who want to improve their skills by watching videos in their target language. It caters to users of various platforms, supporting over 30 languages including English and Spanish.

4 of 6 research questions are answered for this product. The rest need source evidence we have not collected yet, so they are left unanswered rather than guessed.

Behind the lock

Unlock full InterSub intelligence.

  • Backlink trajectoryThe figures above are the latest observation. The daily curve behind them holds 370.
  • AI referral detailHow much traffic assistants send, which 3 of them do it, and the 2 pages they land on.
  • Search structure and ranking depthOrganic against paid, brand against non-brand, and how many keywords rank in the top three against the long tail — which is what decides whether the demand is portable or tied to the name.
  • The rest of the marketPage through every leaderboard 100 rows at a time, put any five products side by side, and query the whole dataset over API / MCP.

Worldwide estimates · Data period 2026-05-01 → 2026-07-31. Figures are measured estimates intended for market research. Signals we have not measured for this domain are omitted, never estimated; a measured zero is still reported as zero. How this was measured