safing.io
Portmaster - Application Firewall by Safing
Last scanned Jul 27, 2026, 8:44 AM
Overall score
Fair
Summary
Portmaster is a free and open-source application that puts you back in charge over all your computer's network connections. This website uses Tailwind CSS hosted on Fastly behind Fastly CDN. SEO is fair (70/100) and accessibility is fair (70/100). Security scores good (75/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
Portmaster is a free and open-source application that puts you back in charge over all your computer's network connections. Increase your privacy and security. Get peace of mind.
- United States
- Hosted on Fastly
Top issues to fix
10 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
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.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+4 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
4 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Portmaster is a free and open-source application that puts you back in charge over all your computer's network connections. Increase your privacy and security. Get peace of mind.
Contact
Email, phone, and address published on this site's own pages.
- support@safing.io
Source: https://safing.io/support/
Meta tags
- Title
- Portmaster - Application Firewall by Safing
- Description
- Portmaster is a free and open-source application that puts you back in charge over all your computer's network connections. Increase your privacy and security. Get peace of mind.
- Canonical
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0, shrink-to-fit=no
- Robots meta
- Manifest
- https://safing.io/assets/icons/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- safing.io
- Valid from
- Jun 23, 2026
- Valid to
- Sep 21, 2026
- Days until expiry
- 55
- SAN domains
- safing.io, www.safing.io
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 4 · H3 0
Links
29 internal · 16 external · 1 broken
Images
23 total · 14 missing alt
Scripts / Styles
3 scripts · 3 stylesheets
JS / CSS size
1.6 KB · 6.0 MB
Page size
29.5 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://safing.io
- Final URL
- https://safing.io
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 4 ms
- HTML size
- 29.5 KB
- Redirect chain
- https://safing.io
See something wrong on this report? Request a correction
Related websites
Same technology stack
tutsplus.com
Free Courses, Tutorials, Tips & Tricks with Envato Tuts+
forter.com
Forter – Agentic Intelligence you can trust
dnsimple.com
Reliable DNS Hosting and Domain Management with DNSimple
viggle.ai
Viggle AI - Remix Anyone into Viral Memes
unej.ac.id
Universitas Jember – Working in Harmony, Nurturing the Future
activemind.de
Datenschutz - Informationssicherheit - KI | activeMind AG
Same hosting provider
foresee.com
Predictive Analytics for Customer Experience | Verint
voicemod.net
Free Real Time Voice Changer for PC & Mac | Voicemod
researchandmarkets.com
Research and Markets - Market Research Reports - Welcome
hallensteins.co.nz
Hallensteins | Menswear NZ
pin.se
InfraCom — komplett digital helhetsleverantör
karafun.com
Online Karaoke with a wide selection of songs on KaraFun
Frequently asked questions
- What technology does safing.io use?
- safing.io is built with Tailwind CSS.
- Is safing.io secure (HTTPS)?
- Yes. safing.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 21, 2026.
- Who hosts safing.io?
- safing.io is hosted on Fastly, behind Fastly CDN.
- What is safing.io's SEO score?
- safing.io scored 70/100 for SEO in the latest analysis (fair).
- What is safing.io's overall website score?
- safing.io has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card