What technology does lenntech.com use?

lenntech.com is built with Bootstrap, jQuery, Google Analytics, Apache.

Is lenntech.com secure (HTTPS)?

Yes. lenntech.com uses TLS 1.2 with a certificate issued by Sectigo Limited, valid until Sep 29, 2026.

Who hosts lenntech.com?

Hosting provider information for lenntech.com is not available yet.

What is lenntech.com's SEO score?

lenntech.com scored 60/100 for SEO in the latest analysis (fair).

What is lenntech.com's overall website score?

lenntech.com has an overall SiteGraph score of 68/100, combining SEO, performance, security, and accessibility.

lenntech.com

Water Treatment and Purification - Lenntech

Last scanned Jul 26, 2026, 12:19 PM

Overall score

Fair

Summary

Lenntech designs, builds and installs a wide range of odour treatment, water purification and air filtration products using UV, ozone, Ecosorb, drum filtration. This website uses Apache. SEO is fair (60/100) and accessibility is good (75/100). Security scores fair (60/100) and performance good (80/100). Top issue: Meta description longer than 160 characters.

Lenntech designs, builds and installs a wide range of odour treatment, water purification and air filtration products using UV, ozone, Ecosorb, drum filtration. Also cooling towers.

Top issues to fix

10 issues found

Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.
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.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.

+4 more issues — details in the sections below.

SEO

7 issue(s) found

Performance

1.33 s

Security

HTTPS & header checks

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.

Lenntech designs, builds and installs a wide range of odour treatment, water purification and air filtration products using UV, ozone, Ecosorb, drum filtration. Also cooling towers.

Contact

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

Email: info@lenntech.com
Phone: +31 152 610 900 +1 877 453 8095

Meta tags

Title: Water Treatment and Purification - Lenntech
Description: Lenntech designs, builds and installs a wide range of odour treatment, water purification and air filtration products using UV, ozone, Ecosorb, drum filtration. Also cooling towers.
Canonical
Language
Charset: utf-8
Viewport: initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,width=device-width,height=device-height,target-densitydpi=device-dpi,user-scalable=yes
Robots meta: NOODP
Manifest

Technologies

Detected frameworks, languages, and tools.

Bootstrap jQuery Google Analytics Apache

Hosting & CDN

Hosting provider: —
CDN provider: —
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.2
Issuer: Sectigo Limited
Subject: www.lenntech.com
Valid from: Dec 3, 2025
Valid to: Sep 29, 2026
Days until expiry: 63
SAN domains: www.lenntech.com, www.lenntech.ae, www.lenntech.com.pt, www.lenntech.com.tr, www.lenntech.de, www.lenntech.es, www.lenntech.fr, www.lenntech.it, www.lenntech.nl, www.lenntech.pl

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 2 · H2 0 · H3 2

Links

138 internal · 10 external · 20 broken

Images

84 total · 24 missing alt

Scripts / Styles

19 scripts · 3 stylesheets

JS / CSS size

17.5 KB · 341 B

Page size

81.2 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
Multiple H1 headings found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://lenntech.com
Final URL: https://www.lenntech.com/
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 1.33 s
HTML size: 81.2 KB
Redirect chain: https://lenntech.com → https://www.lenntech.com/

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Frequently asked questions

What technology does lenntech.com use?: lenntech.com is built with Bootstrap, jQuery, Google Analytics, Apache.
Is lenntech.com secure (HTTPS)?: Yes. lenntech.com uses TLS 1.2 with a certificate issued by Sectigo Limited, valid until Sep 29, 2026.
Who hosts lenntech.com?: Hosting provider information for lenntech.com is not available yet.
What is lenntech.com's SEO score?: lenntech.com scored 60/100 for SEO in the latest analysis (fair).
What is lenntech.com's overall website score?: lenntech.com has an overall SiteGraph score of 68/100, combining SEO, performance, security, and accessibility.