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SGSiteGraph

lightpollutionmap.info

Light pollution map

Last scanned Jul 26, 2026, 1:49 PM · 16 views

74

Overall score

Fair

Summary

Interactive world light pollution map. This website uses Apache. SEO is fair (60/100) and accessibility is good (75/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

Interactive world light pollution map. The map uses NASA Black marble VIIRS, Sky brightness, Aurora prediction, observatories, clouds and SQM/SQC overlay contributed by users.

Top issues to fix

12 issues found · 3 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.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • 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.

  • Meta description longer than 160 characters

    SEO

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

+6 more issues — details in the sections below.

60

SEO

6 issue(s) found

100

Performance

329 ms

65

Security

HTTPS & header checks

75

Accessibility

2 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.

Interactive world light pollution map. The map uses NASA Black marble VIIRS, Sky brightness, Aurora prediction, observatories, clouds and SQM/SQC overlay contributed by users.

Meta tags

Title
Light pollution map
Description
Interactive world light pollution map. The map uses NASA Black marble VIIRS, Sky brightness, Aurora prediction, observatories, clouds and SQM/SQC overlay contributed by users.
Canonical
Language
en
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Light Pollution Map
og:description
Interactive world light pollution map. The map uses NASA Black marble VIIRS, Sky brightness, Aurora prediction, observatories, clouds and SQM/SQC overlay contributed by users.
og:type
website
og:url
https://www.lightpollutionmap.info/

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

jQueryApache

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
lightpollutionmap.info
Valid from
May 31, 2026
Valid to
Aug 29, 2026
Days until expiry
31
SAN domains
lightpollutionmap.info, www.lightpollutionmap.info

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 0 · H2 1 · H3 6

Links

1 internal · 1 external · 2 broken

Images

8 total · 2 missing alt

Scripts / Styles

4 scripts · 1 stylesheets

JS / CSS size

0 B · 0 B

Page size

48.3 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 H1 heading found
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • More than 20% of images are missing alt text
  • No H1 heading found

Scan details

Requested URL
https://lightpollutionmap.info
Final URL
https://www.lightpollutionmap.info/
HTTP status
200
HTTP version
HTTP/1.1
Response time
329 ms
HTML size
48.3 KB
Redirect chain
https://lightpollutionmap.info → https://www.lightpollutionmap.info/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does lightpollutionmap.info use?
lightpollutionmap.info is built with jQuery, Apache.
Is lightpollutionmap.info secure (HTTPS)?
Yes. lightpollutionmap.info uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 29, 2026.
Who hosts lightpollutionmap.info?
Hosting provider information for lightpollutionmap.info is not available yet.
What is lightpollutionmap.info's SEO score?
lightpollutionmap.info scored 60/100 for SEO in the latest analysis (fair).
What is lightpollutionmap.info's overall website score?
lightpollutionmap.info has an overall SiteGraph score of 74/100, combining SEO, performance, security, and accessibility.