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derv.com

International Oil and Gas Specialists | Derv

Last scanned Jul 22, 2026, 9:53 PM · 1 view

83

Overall score

Great

Summary

Welcome to Derv, Oil and Gas Specialists. This website uses WordPress hosted on Freethought-AS - Freethought Internet Limited, GB. SEO is good (80/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

Welcome to Derv, Oil and Gas Specialists.

United Kingdom
Hosted on Freethought-AS - Freethought Internet Limited, GB

Top issues to fix

8 issues found · 2 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 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.

  • No structured data (JSON-LD) found

    SEO

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

+2 more issues — details in the sections below.

80

SEO

3 issue(s) found

100

Performance

377 ms

65

Security

HTTPS & header checks

90

Accessibility

1 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.

Welcome to Derv, Oil and Gas Specialists.

Contact

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

Source: https://derv.com/contact

Meta tags

Title
International Oil and Gas Specialists | Derv
Description
Welcome to Derv, Oil and Gas Specialists.
Canonical
Language
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
International Oil and Gas Specialists | Derv
og:description
International Oil & Gas Specialists | Derv
og:type
website
og:url
https://derv.com/

Twitter Card

twitter:card
summary
twitter:title
International Oil and Gas Specialists | Derv
twitter:description
International Oil & Gas Specialists | Derv

Technologies

Detected frameworks, languages, and tools.

WordPressTailwind CSSjQuery

Hosting & CDN

CDN provider
—
IP address
194.110.243.34
ASN
AS41000 (Freethought-AS - Freethought Internet Limited, GB)

DNS records

TypeValue
A
  • 194.110.243.34
AAAA
  • 2a00:b980:3:9::34
MX
  • derv.com
TXT—
NS
  • ns100.layerip.com
  • ns101.layerip.com
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
*.derv.com
Valid from
Jul 20, 2026
Valid to
Oct 18, 2026
Days until expiry
87
SAN domains
*.derv.com, derv.com

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

5 scripts · 3 stylesheets

JS / CSS size

328 KB · 109 KB

Page size

5.1 KB

Robots.txt & Sitemap

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

SEO issues

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

Accessibility issues

  • Missing <html lang> attribute

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

Scan details

Requested URL
https://derv.com
Final URL
https://derv.com
HTTP status
200
HTTP version
HTTP/2
Response time
377 ms
HTML size
5.1 KB
Redirect chain
https://derv.com

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does derv.com use?
derv.com is built with WordPress, Tailwind CSS, jQuery.
Is derv.com secure (HTTPS)?
Yes. derv.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 18, 2026.
Who hosts derv.com?
derv.com is hosted on Freethought-AS - Freethought Internet Limited, GB.
What is derv.com's SEO score?
derv.com scored 80/100 for SEO in the latest analysis (great).
What is derv.com's overall website score?
derv.com has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
Is derv.com hiring?
derv.com has a careers page; check it directly for current openings.