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iac.es

Home | Instituto de Astrofísica de Canarias • IAC

Last scanned Jul 26, 2026, 5:17 AM · 1 view

86

Overall score

Great

Summary

This website uses Apache hosted on RedIRIS - Entidad Publica Empresarial Red.es, ES. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Missing meta description.

Spain
Hosted on RedIRIS - Entidad Publica Empresarial Red.es, ES

Top issues to fix

7 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.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • No structured data (JSON-LD) found

    SEO

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

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

70

SEO

4 issue(s) found

100

Performance

818 ms

80

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.

X (Twitter)FacebookInstagramLinkedInYouTube

Contact

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

Source: https://iac.es/en/contact

Meta tags

Title
Home | Instituto de Astrofísica de Canarias • IAC
Description
Canonical
https://iac.es/en
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
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.

DrupaljQueryGoogle AnalyticsApache

Hosting & CDN

CDN provider
—
IP address
161.72.1.80
ASN
AS766 (RedIRIS - Entidad Publica Empresarial Red.es, ES)

DNS records

TypeValue
A
  • 161.72.1.80
AAAA
  • 2001:720:1610:5001::50
MX
  • mxb-006a4e02.gslb.pphosted.com
  • mxa-006a4e02.gslb.pphosted.com
TXT
  • apple-domain-verification=TuVrJNj01BI1ckPD
  • MS=ms13247343
  • v=spf1 include:spf.puc.rediris.es include:servers.mcsv.net a:mailgate.ll.iac.es ip4:161.72.2.0/24 ~all
  • google-site-verification=4zU-Vuvnb3SEwV1LHc6tUw2OKLtOTyTj3RcwGKkG_iI
NS
  • chico.rediris.es
  • sun.rediris.es
  • calp-dnsext.iac.es
  • ll-dnsext.iac.es
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Hellenic Academic and Research Institutions CA
Subject
www.iac.es
Valid from
Jul 23, 2026
Valid to
Feb 7, 2027
Days until expiry
195
SAN domains
www.iac.es, comunica.iac.es, iac.es, iac.edu.es, www.iac.edu.es

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 11 · H3 0

Links

96 internal · 14 external · 5 broken

Images

24 total · 0 missing alt

Scripts / Styles

41 scripts · 47 stylesheets

JS / CSS size

326 KB · 5.4 KB

Page size

82.5 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
34
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

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

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://iac.es
Final URL
https://iac.es
HTTP status
200
HTTP version
HTTP/1.1
Response time
817 ms
HTML size
82.5 KB
Redirect chain
https://iac.es

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does iac.es use?
iac.es is built with Drupal, jQuery, Google Analytics, Apache.
Is iac.es secure (HTTPS)?
Yes. iac.es uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 7, 2027.
Who hosts iac.es?
iac.es is hosted on RedIRIS - Entidad Publica Empresarial Red.es, ES.
What is iac.es's SEO score?
iac.es scored 70/100 for SEO in the latest analysis (fair).
What is iac.es's overall website score?
iac.es has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.