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fileformat.info

FileFormat.Info: The Digital Rosetta Stone

Last scanned Jul 26, 2026, 5:47 AM · 1 view

84

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

    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.

  • 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.

  • 1 cookie without Secure/HttpOnly flags

    Security

    Set 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

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

+2 more issues — details in the sections below.

85

SEO

3 issue(s) found

90

Performance

2.96 s

65

Security

HTTPS & header checks

100

Accessibility

0 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.

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

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

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

TypeValue
A
  • 104.21.3.2
  • 172.67.129.246
AAAA
  • 2606:4700:3037::6815:302
  • 2606:4700:3035::ac43:81f6
MX
TXT
  • yandex-verification: b781dbdd486a2f36
NS
CAA
CNAME
IPv6 supportYes

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.