SubLingo
sublingo.pro
Chrome extension that turns Netflix and YouTube into language learning tools
SubLingo translates subtitles in real-time, lets you hover any word for instant definitions, and builds your vocabulary — all without leaving your video.
Key facts
- Founder
- Thanh Thien · 35 followers
- Founded
- February 2026
- Based in
- 🇻🇳 Vietnam
- Payments
- Lemon Squeezy
- Plans from
- $9 a month
- Revenue, 12 months
- $74
- Revenue, all time
- $74
- Domain registered
- February 2026
- Registrar
- HOSTINGER operations, UAB
- Listed on StartupsIntel
- October 2026
Built with
Kotlin (frontend)Lemon Squeezy (backend)
Daily revenue, last 30 days
Verified with Lemon SqueezyMonthly revenue
Verified with Lemon SqueezyPopularity by source
October 2026Not in any top-million list
That usually means fewer than about 76.5K visits a month. New and niche sites rarely reach public rankings, we check again every month.
| TrancoResearch list, average of several rankings | Not listed |
|---|---|
| Cloudflare RadarTraffic through Cloudflare's network | Not listed |
| Chrome UX ReportVisits by Chrome users, from Google | Not listed |
| Cisco UmbrellaDNS lookups | Not listed |
| MajesticSites linking to it | Not listed |
Ranks for this exact domain, lower is more popular. How we combine them
Whois information
| Domain | sublingo.pro |
|---|---|
| Registrar | HOSTINGER operations, UAB |
| Registrar ID | 1636 |
| Created date | 2026-02-08 14:52:22 UTC |
| Expires date | 2027-02-08 14:52:22 UTC |
| Updated date | 2026-08-12 01:19:58 UTC |
| Domain status | client transfer prohibited |
| Name servers | alexa.ns.cloudflare.comgarrett.ns.cloudflare.com |
| DNSSEC | unsigned |
Raw whois
Domain Name: SUBLINGO.PRO Registrar: HOSTINGER operations, UAB Registrar IANA ID: 1636 Registrar Abuse Contact Email: [email protected] Registrar Abuse Contact Phone: +370.64503378 Updated Date: 2026-08-12T01:19:58.339Z Creation Date: 2026-02-08T14:52:22.465Z Registry Expiry Date: 2027-02-08T14:52:22.465Z Domain Status: client transfer prohibited Name Server: ALEXA.NS.CLOUDFLARE.COM Name Server: GARRETT.NS.CLOUDFLARE.COM DNSSEC: unsigned >>> Last update of RDAP database: 2026-11-01T18:37:43.603Z <<<
SEO audit
15 of 16 checks passed95
SEO score
Response 290 ms · 67 KB
- Served over HTTPS
- Title tag present
- Title length 30 to 60 characters
- Meta description present
- Description length 70 to 160 characters
- Exactly one H1 heading
- Uses H2 sub-headings
- Canonical URL set
- Mobile viewport tag
- Language declared
- Open Graph tags
- Twitter card tags
- Structured data (JSON-LD)
- Images have alt textAdd alt text to 6 images.
- At least 300 words of content
- Responds in under 1.5 seconds
- Title (42 characters)
- SubLingo — Learn Languages While You Watch
- Description (135 characters)
- SubLingo translates subtitles in real-time on YouTube, Netflix, and more. Hover words, save vocabulary, and master languages naturally.
- Headings
- 1 H1, 7 H2, 8 H3
- Words on page
- 1,139
- Links
- 6 internal, 4 external
- Structured data
- SoftwareApplication
On-page keywords
| Phrase | Type | Mentions |
|---|---|---|
| dual subtitles | Two words | 9 |
| spaced repetition | Two words | 6 |
| while watching | Two words | 6 |
| words while watching | Three words | 4 |
| chrome it's free | Three words | 3 |
| chrome web store | Three words | 3 |
| learning | Word | 22 |
| sublingo | Word | 14 |
Tech stack and pricing
Lowest paid plan
$9 /month
PostHog Cloudflare
About SubLingo
What is SubLingo?
Chrome extension that turns Netflix and YouTube into language learning tools
How much does SubLingo cost?
Paid plans start at $9 per month, based on the public pricing page.