fileformat.info
FileFormat.Info: The Digital Rosetta Stone
Last scanned Jul 26, 2026, 5:47 AM · 1 view
Overall score
Great
Summary
FileFormat.Info is the source for file format standards, online file conversions, and detailed file specifications, including Unicode characters, MIME types and file extensions. This website uses Google Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
FileFormat.Info is the source for file format standards, online file conversions, and detailed file specifications, including Unicode characters, MIME types and file extensions
- United States
- Hosted on Cloudflare
Top issues to fix
8 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.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
+2 more issues — details in the sections below.
SEO
3 issue(s) found
Performance
2.96 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
FileFormat.Info is the source for file format standards, online file conversions, and detailed file specifications, including Unicode characters, MIME types and file extensions
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- FileFormat.Info: The Digital Rosetta Stone
- Description
- FileFormat.Info is the source for file format standards, online file conversions, and detailed file specifications, including Unicode characters, MIME types and file extensions
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 104.21.3.2
- 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
- fileformat.info
- Valid from
- Jun 11, 2026
- Valid to
- Sep 9, 2026
- Days until expiry
- 42
- SAN domains
- fileformat.info, *.fileformat.info
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 0
Links
54 internal · 153 external · 0 broken
Images
2 total · 0 missing alt
Scripts / Styles
4 scripts · 1 stylesheets
JS / CSS size
110 KB · 228 KB
Page size
31.4 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 26
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- Missing OpenGraph tags
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://fileformat.info
- Final URL
- https://www.fileformat.info/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 2.96 s
- HTML size
- 31.4 KB
- Redirect chain
- https://fileformat.info → https://www.fileformat.info/
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Frequently asked questions
- What technology does fileformat.info use?
- fileformat.info is built with Bootstrap, Google Analytics, Cloudflare Analytics.
- Is fileformat.info secure (HTTPS)?
- Yes. fileformat.info uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 9, 2026.
- Who hosts fileformat.info?
- fileformat.info is hosted on Cloudflare, behind Cloudflare CDN.
- What is fileformat.info's SEO score?
- fileformat.info scored 85/100 for SEO in the latest analysis (great).
- What is fileformat.info's overall website score?
- fileformat.info has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card