What technology does hal.science use?

hal.science is built with Nginx.

Is hal.science secure (HTTPS)?

Yes. hal.science uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 7, 2027.

Who hosts hal.science?

hal.science is hosted on FR-RENATER - Renater, FR.

What is hal.science's SEO score?

hal.science scored 70/100 for SEO in the latest analysis (fair).

What is hal.science's overall website score?

hal.science has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.

hal.science

Oh noes!

Last scanned Jul 24, 2026, 8:25 PM · 1 view

Overall score

Great

Summary

This website uses Nginx hosted on FR-RENATER - Renater, FR. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing meta description.

France

Hosted on FR-RENATER - Renater, FR

Top issues to fix

9 issues found · 2 high priority

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.
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.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.

+3 more issues — details in the sections below.

SEO

4 issue(s) found

100

Performance

270 ms

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.

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider: FR-RENATER - Renater, FR
CDN provider: —
IP address: 193.48.96.10
ASN: AS2200 (FR-RENATER - Renater, FR)

DNS records

Type	Value
A	193.48.96.10
AAAA	—
MX	mx2.in2p3.fr mx1.in2p3.fr
TXT	v=spf1 ip4:193.48.96.0/24 include:spf.in2p3.fr ~all google-site-verification=NQl9NPXGlgRK5l3w4Ia3jPciYGU0zZmuc9KTvXCRDOY google-site-verification=Dot44n8XqpQEdQfm-PJLq5ViDbXzK0TkQD44Ii-ar2k
NS	ccsd02.in2p3.fr ccpnvx.in2p3.fr ccpntc3.in2p3.fr
CAA	0 issuewild "harica.gr" 0 iodef "mailto:ccsd-tech@ccsd.cnrs.fr" 0 issue "letsencrypt.org" 0 issue "harica.gr" 0 issuewild "letsencrypt.org"
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Hellenic Academic and Research Institutions CA
Subject: *.hal.science
Valid from: Jul 23, 2026
Valid to: Feb 7, 2027
Days until expiry: 197
SAN domains: *.hal.science, hal.science

Security headers

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

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

1 internal · 3 external · 1 broken

Images

1 total · 0 missing alt

Scripts / Styles

5 scripts · 1 stylesheets

JS / CSS size

132 B · 4.4 KB

Page size

30.5 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 83
sitemap.xml: Found
URLs in sitemap: -1

SEO issues

Missing meta description
Missing canonical link
No structured data (JSON-LD) found
Missing OpenGraph tags

Scan details

Requested URL: https://hal.science
Final URL: https://hal.science
HTTP status: 200
HTTP version: HTTP/2
Response time: 270 ms
HTML size: 30.5 KB
Redirect chain: https://hal.science

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does hal.science use?: hal.science is built with Nginx.
Is hal.science secure (HTTPS)?: Yes. hal.science uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 7, 2027.
Who hosts hal.science?: hal.science is hosted on FR-RENATER - Renater, FR.
What is hal.science's SEO score?: hal.science scored 70/100 for SEO in the latest analysis (fair).
What is hal.science's overall website score?: hal.science has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.