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SGSiteGraph

localhost.run

localhost.run | localhost.run

Last scanned Aug 24, 2026, 1:21 PM

87

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

    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.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

+1 more issue — details in the sections below.

85

SEO

2 issue(s) found

100

Performance

263 ms

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.

Connect web applications running on your computer to the internet instantly

Contact

Email, phone, and address published on this site's own pages.

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

OpenGraph & Twitter Card

OpenGraph

og:title
localhost.run | localhost.run
og:description
Connect web applications running on your computer to the internet instantly
og:type
og:url
https://localhost.run/

Twitter Card

twitter:card
summary_large_image
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
AWS
CDN provider
Fastly
IP address
54.82.85.249
ASN
AS16509 (AMAZON-02 - Amazon.com, Inc., US)

DNS records

TypeValue
A
  • 54.82.85.249
  • 54.161.197.247
  • 35.171.254.69
AAAA
MX
  • alt2.aspmx.l.google.com
  • aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt1.aspmx.l.google.com
TXT
  • google-site-verification=-lcW9y_l4EMvE2c62e6ywnqC38p8OmSRM2b6eipDEUc
  • v=spf1 include:_spf.google.com include:amazonses.com ~all
NS
  • ns-743.awsdns-28.net
  • ns-479.awsdns-59.com
  • ns-1718.awsdns-22.co.uk
  • ns-1051.awsdns-03.org
CAA
CNAME
IPv6 supportNo

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

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.