file.io
file.io - Super simple file sharing
Last scanned Jul 27, 2026, 11:43 AM · 1 view
Overall score
Fair
Summary
Sharing files with file.io is convenient, anonymous and secure. This website uses Google Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is good (80/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance good (80/100). Top issue: Missing canonical link.
Sharing files with file.io is convenient, anonymous and secure. Just upload files and share the links via email, SMS, Slack, Discord, etc. Easy-to-use REST API.
- United States
- Hosted on Cloudflare
Products & pricing
Product and pricing information published in this site's own structured data.
Plans
$0 USD
Top issues to fix
9 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
+3 more issues — details in the sections below.
SEO
3 issue(s) found
Performance
248 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Sharing files with file.io is convenient, anonymous and secure. Just upload files and share the links via email, SMS, Slack, Discord, etc. Easy-to-use REST API.
Contact
Email, phone, and address published on this site's own pages.
- support@file.io
Meta tags
- Title
- file.io - Super simple file sharing
- Description
- Sharing files with file.io is convenient, anonymous and secure. Just upload files and share the links via email, SMS, Slack, Discord, etc. Easy-to-use REST API.
- Canonical
- Language
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 104.21.66.52
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- file.io
- Valid from
- Jun 25, 2026
- Valid to
- Sep 23, 2026
- Days until expiry
- 57
- SAN domains
- file.io, *.file.io
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 7 · H2 13 · H3 0
Links
12 internal · 10 external · 4 broken
Images
4 total · 0 missing alt
Scripts / Styles
6 scripts · 3 stylesheets
JS / CSS size
128 KB · 2.5 MB
Page size
554 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 10
SEO issues
- Missing canonical link
- Multiple H1 headings found
- No structured data (JSON-LD) found
Accessibility issues
- Missing <html lang> attribute
Scan details
- Requested URL
- https://file.io
- Final URL
- https://www.file.io/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 237 ms
- HTML size
- 554 KB
- Redirect chain
- https://file.io → https://www.file.io/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does file.io use?
- file.io is built with Gatsby, jQuery, Google Analytics, Cloudflare Analytics.
- Is file.io secure (HTTPS)?
- Yes. file.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 23, 2026.
- Who hosts file.io?
- file.io is hosted on Cloudflare, behind Cloudflare CDN.
- What is file.io's SEO score?
- file.io scored 80/100 for SEO in the latest analysis (great).
- What is file.io's overall website score?
- file.io has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.
- What products does file.io offer?
- file.io offers Plans.
OpenGraph & Twitter Card
OpenGraph
Twitter Card