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downsub.com

Download subtitles from Youtube, Viki, Viu, Kocowa, Wetv and more

Last scanned Jul 26, 2026, 5:47 AM

75

Overall score

Fair

Summary

DownSub is a free web application that can download subtitles directly with playlist from Youtube, Drive, Viu, Vimeo, Viki, OnDemandKorea, Wetv and more. This website uses Cloudflare Analytics behind Cloudflare CDN. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.

DownSub is a free web application that can download subtitles directly with playlist from Youtube, Drive, Viu, Vimeo, Viki, OnDemandKorea, Wetv and more.

Top issues to fix

10 issues found · 3 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

+4 more issues — details in the sections below.

60

SEO

6 issue(s) found

90

Performance

1.18 s

65

Security

HTTPS & header checks

90

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

DownSub is a free web application that can download subtitles directly with playlist from Youtube, Drive, Viu, Vimeo, Viki, OnDemandKorea, Wetv and more.

Meta tags

Title
Download subtitles from Youtube, Viki, Viu, Kocowa, Wetv and more
Description
DownSub is a free web application that can download subtitles directly with playlist from Youtube, Drive, Viu, Vimeo, Viki, OnDemandKorea, Wetv and more.
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width,initial-scale=1
Robots meta
All,index,follow
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Download subtitles from Youtube, Viki, Viu, Wetv, Kocowa and more
og:description
DownSub is a free web application that can download subtitles directly from Youtube, Drive, Viu, Vimeo, Viki, Wetv, Kocowa and more.
og:type
website
og:url
https://downsub.com

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

Cloudflare Analytics

Hosting & CDN

Hosting provider
—
CDN provider
Cloudflare
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
downsub.com
Valid from
Jul 24, 2026
Valid to
Oct 22, 2026
Days until expiry
85
SAN domains
downsub.com, proxy.downsub.com

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

2 scripts · 1 stylesheets

JS / CSS size

0 B · 0 B

Page size

4.5 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Title longer than 60 characters
  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://downsub.com
Final URL
https://downsub.com
HTTP status
200
HTTP version
HTTP/2
Response time
1.18 s
HTML size
4.5 KB
Redirect chain
https://downsub.com

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does downsub.com use?
downsub.com is built with Cloudflare Analytics.
Is downsub.com secure (HTTPS)?
Yes. downsub.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 22, 2026.
Who hosts downsub.com?
Hosting provider information for downsub.com is not available yet.
What is downsub.com's SEO score?
downsub.com scored 60/100 for SEO in the latest analysis (fair).
What is downsub.com's overall website score?
downsub.com has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.