electronics-notes.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-08 · ok HTTP/1.1 200 2598 ms crawled 2026-05-07

GB · 185.215.37.86 · AS6908 Six Degrees Technology Group Limited

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: Electronics Notes: reference site for electronics, radio & wireless
Description: Now incorporating the best of Radio-Electronics.com, Electronics Notes offers basic radio & electronics tutorials to learn electronics online as well as practical construction techniques and technology history
Language: en-GB

Technology

Server: nginx

Analytics

Google Tag Manager

Ads

Google AdSense
Google Ads (DoubleClick)

Social widgets

YouTube Embed

Third-party hosts loaded (6)

img.youtube.com×3
pagead2.googlesyndication.com×2
www.googletagmanager.com×2
www.youtube.com×2
cdnjs.cloudflare.com×1
securepubads.g.doubleclick.net×1

Social

Contact

Address: Dorking, United Kingdom

Registration

Registrar

Tucows Domains Inc.

Created

2016-10-06

Expires

2027-10-06 505 days left

Updated

2019-05-29

Name servers

ns0.swiftinter.net
ns1.swiftinter.net

DNS records live

NS

ns.electronics-notes.com
ns0.swiftinter.net
ns1.swiftinter.net
ns2.swiftinternet.co.uk

MX

10 mail.electronics-notes.com

TXT

v=DMARC1; p=reject; sp=none; pct=100; ri=86400; rua=mailto:root@electronics-notes.com

Email authentication weak

SPF

v=spf1 +a +mx include:spfa.swiftinter.net -all

strict (-all)

DMARC

not published

DKIM

default: v=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCc8Q3/IZEkPFCQt77Xhpzjy4Xi67JL4jRrKqqdpuZAfb8DSCldtRA4pxcyksbaoRyNIDIsZM9oWGjPdK69m5uQeq9tY…

selectors probed

Certificate (current)

R13

from 2026-03-15 to 2026-06-13

Expires in 25 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.electronics-notes.com/

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy