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minorplanetcenter.net

IAU Minor Planet Center

Last scanned Jul 26, 2026, 5:48 AM · 1 view

75

Overall score

Fair

Summary

We are the official body that deals with astrometric observations and orbits of minor planets (asteroids) and comets. This website uses Apache hosted on HARVARD-UNIV - Harvard University, US. SEO is good (75/100) and accessibility is fair (55/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

We are the official body that deals with astrometric observations and orbits of minor planets (asteroids) and comets.

United States
Hosted on HARVARD-UNIV - Harvard University, US

Top issues to fix

11 issues found · 4 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.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • Missing viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • 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.

+5 more issues — details in the sections below.

75

SEO

4 issue(s) found

100

Performance

747 ms

65

Security

HTTPS & header checks

55

Accessibility

3 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.

We are the official body that deals with astrometric observations and orbits of minor planets (asteroids) and comets.

Meta tags

Title
IAU Minor Planet Center
Description
We are the official body that deals with astrometric observations and orbits of minor planets (asteroids) and comets.
Canonical
Language
Charset
UTF-8
Viewport
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.

jQueryApache

Hosting & CDN

CDN provider
—
IP address
131.142.195.56
ASN
AS1742 (HARVARD-UNIV - Harvard University, US)

DNS records

TypeValue
A
  • 131.142.195.56
AAAA—
MX
  • mx-caprica.zoneedit.com
TXT
  • Random Value: F0AC-4472-211E-556E-4C97-683D-173D-1352
  • v=spf1 include:_spf.google.com include:cfa.harvard.edu include:si.edu ~all
NS
  • dns2.zoneedit.com
  • dns1.zoneedit.com
  • dns3.zoneedit.com
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
minorplanetcenter.net
Valid from
Jun 25, 2026
Valid to
Sep 23, 2026
Days until expiry
56
SAN domains
cgi.minorplanetcenter.net, minorplanetcenter.net, www.minorplanetcenter.net

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 1 · H3 5

Links

60 internal · 10 external · 0 broken

Images

1 total · 1 missing alt

Scripts / Styles

8 scripts · 4 stylesheets

JS / CSS size

334 KB · 22.9 KB

Page size

17.3 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
139
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text
  • Missing <html lang> attribute
  • Missing viewport meta tag

Scan details

Requested URL
https://minorplanetcenter.net
Final URL
https://minorplanetcenter.net
HTTP status
200
HTTP version
HTTP/1.1
Response time
747 ms
HTML size
17.3 KB
Redirect chain
https://minorplanetcenter.net

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does minorplanetcenter.net use?
minorplanetcenter.net is built with jQuery, Apache.
Is minorplanetcenter.net secure (HTTPS)?
Yes. minorplanetcenter.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 23, 2026.
Who hosts minorplanetcenter.net?
minorplanetcenter.net is hosted on HARVARD-UNIV - Harvard University, US.
What is minorplanetcenter.net's SEO score?
minorplanetcenter.net scored 75/100 for SEO in the latest analysis (fair).
What is minorplanetcenter.net's overall website score?
minorplanetcenter.net has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.