lttng.org

LTTng: an open source tracing framework for Linux

Last scanned Aug 24, 2026, 1:22 PM

75

Overall score

Fair

Summary

LTTng is an open source tracing framework for Linux. This website uses Apache hosted on OVH - OVH SAS, FR. SEO is fair (70/100) and accessibility is fair (50/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.

LTTng is an open source tracing framework for Linux. Gain insight into your system's behavior today.

Canada

Hosted on OVH - OVH SAS, FR

Top issues to fix

9 issues found · 3 high priority

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.
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 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.
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.

70

SEO

4 issue(s) found

100

Performance

193 ms

75

Security

HTTPS & header checks

50

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.

LTTng is an open source tracing framework for Linux. Gain insight into your system's behavior today.

Meta tags

Title: LTTng: an open source tracing framework for Linux
Description: LTTng is an open source tracing framework for Linux. Gain insight into your system's behavior today.
Canonical
Language
Charset: utf-8
Viewport: width=device-width, initial-scale=1, maximum-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

jQuery Google Analytics Apache

Hosting & CDN

Hosting provider: OVH - OVH SAS, FR
CDN provider: —
IP address: 158.69.130.25
ASN: AS16276 (OVH - OVH SAS, FR)

DNS records

Type	Value
A	158.69.130.25
AAAA	2607:5300:400:ed00::d7f2
MX	lttng-org.mail.protection.outlook.com
TXT	v=spf1 include:spf.protection.outlook.com a:smtpout.efficios.com ~all
NS	ns4.he.net ns02.efficios.ca ns2.he.net ns3.he.net ns01.efficios.com ns1.he.net ns5.he.net
CAA	0 issue "comodoca.com" 0 iodef "mailto:admins@efficios.com" 0 issue "letsencrypt.org" 0 issuewild "comodoca.com"
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: lttng.org
Valid from: Aug 24, 2026
Valid to: Nov 22, 2026
Days until expiry: 89
SAN domains: doc.lttng.org, docs.lttng.org, lttng.org, pre.lttng.org, www.lttng.org

Security headers

Strict-Transport-SecurityEnabled
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 8 · H3 5

Links

20 internal · 16 external · 0 broken

Images

7 total · 7 missing alt

Scripts / Styles

9 scripts · 5 stylesheets

JS / CSS size

91.7 KB · 50.2 KB

Page size

15.3 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 1
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
sitemap.xml not found

Scan details

Requested URL: https://lttng.org
Final URL: https://lttng.org
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 193 ms
HTML size: 15.3 KB
Redirect chain: https://lttng.org

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Frequently asked questions

What technology does lttng.org use?: lttng.org is built with jQuery, Google Analytics, Apache.
Is lttng.org secure (HTTPS)?: Yes. lttng.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 22, 2026.
Who hosts lttng.org?: lttng.org is hosted on OVH - OVH SAS, FR.
What is lttng.org's SEO score?: lttng.org scored 70/100 for SEO in the latest analysis (fair).
What is lttng.org's overall website score?: lttng.org has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.