localhost.run
localhost.run | localhost.run
Last scanned Aug 24, 2026, 1:21 PM
Overall score
Great
Summary
Connect web applications running on your computer to the internet instantly. This website uses Google Analytics hosted on AWS behind Fastly CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Connect web applications running on your computer to the internet instantly
- United States
- Hosted on AWS
Top issues to fix
7 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.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+1 more issue — details in the sections below.
SEO
2 issue(s) found
Performance
263 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Connect web applications running on your computer to the internet instantly
Contact
Email, phone, and address published on this site's own pages.
- help@localhost.run
Meta tags
- Title
- localhost.run | localhost.run
- Description
- Connect web applications running on your computer to the internet instantly
- Canonical
- https://localhost.run/
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- Manifest
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
- localhost.run
- Valid from
- Aug 19, 2026
- Valid to
- Nov 17, 2026
- Days until expiry
- 84
- SAN domains
- localhost.run
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 1 · H2 0 · H3 6
Links
4 internal · 5 external · 3 broken
Images
8 total · 0 missing alt
Scripts / Styles
5 scripts · 1 stylesheets
JS / CSS size
290 KB · 66.8 KB
Page size
10.9 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 12
SEO issues
- No structured data (JSON-LD) found
- robots.txt not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://localhost.run
- Final URL
- https://localhost.run
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 263 ms
- HTML size
- 10.9 KB
- Redirect chain
- https://localhost.run
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does localhost.run use?
- localhost.run is built with Google Analytics.
- Is localhost.run secure (HTTPS)?
- Yes. localhost.run uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 17, 2026.
- Who hosts localhost.run?
- localhost.run is hosted on AWS, behind Fastly CDN.
- What is localhost.run's SEO score?
- localhost.run scored 85/100 for SEO in the latest analysis (great).
- What is localhost.run's overall website score?
- localhost.run has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card