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SEO ScoreNaN/100
Average SEO score of top 100 sites: 75%
Your site scored NaN/100, just above the 75 average for top sites. We found 6 issues to fix, and they're what's holding you back from the top spots.
6 Failed
0 Warnings
20 Passed
Want to fix these issues and track your progress?
Common SEO issues
Score:79
Failed:1
Warnings:0
Passed:8
Desktop version
https://www.onetransistor.eu
Mobile version
https://www.onetransistor.eu
addition
alphanumeric
analog
april
arduino
atmega
audio
august
author
better
boards
breadboard
build
built
cards
chose
circuits
code
comments
compatible
controllers
cornelius
data
december
development
device
devices
different
display
displays
don't
electronics
fashioned
features
february
fonts
good
graphic
graphics
hardware
home
interface
interfaces
items
january
july
june
leds
library
linear
linux
longer
look
march
measurement
menu
microcontrollers
mode
modules
need
november
october
onetransistor
photo
pixels
port
posted
power
powered
pretty
project
protocol
provide
radio
regulators
sensor
september
serial
simple
software
supply
support
supports
tags
text
thought
time
touchpad
transistor
tuner
tuners
ubuntu
ultrasonic
used
user
using
video
want
written
►

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Robots.txt Test
This website is using a robots.txt file.
Image Alt Test
Your webpage has 35 'img' tags and 18 of them are missing the required 'alt' attribute.
Google Analytics Test
Congratulations! Your website is using the latest version of Google Analytics.
Favicon Test

Congratulations! Your website appears to have a favicon.

Get a full and detailed list of your backlinks
See every website linking to yours, along with detailed backlink data.
JS Error Checker
Congratulations! There are no severe JavaScript errors on your web page.
Speed optimizations
Score:100
Failed:1
Warnings:0
Passed:5
HTML Page Size Test
HTML Compression/GZIP Test
Congratulations! Your page is successfully compressed using gzip compression on your code.
Your HTML is compressed from 104.65 Kb to 18.73 Kb (82 % size savings). This helps ensure a faster loading web page and improved user experience.
Your HTML is compressed from 104.65 Kb to 18.73 Kb (82 % size savings). This helps ensure a faster loading web page and improved user experience.
Site Loading Speed Test
Your site loading time is around 2.71 seconds and this is under the average loading speed which is 5 seconds.

Accurate historical loading speed monitor and reports
Get detailed and accurate loading speed reports for your websites and see how your pages are being loaded over time.
Page Objects
Your page has more than 20 http requests, which can slow down page loading. You can try reducing http requests through various methods such as using text instead of images, using css sprites, using data URIs instead of images, or combining several external files together into one.
Total Objects: 60
- 5 HTML Pages
- 6 CSS Files
- 24 JS Files
- 25 Images
- 0 Flash Files
Image Caching Test
Congratulations! Your webpage use 'Expires' header for your images and the browsers will display these images from the cache.
URL Redirects Checker
Congratulations! Your URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).
Server and security
Score:NaN
Failed:1
Warnings:0
Passed:2
URL Canonicalization Test
https://www.onetransistor.eu and https://onetransistor.eu resolve to the same URL.
Plaintext Emails Test
Congratulations! Your webpage does not include email addresses in plaintext.
Mobile usability
Score:100
Failed:0
Warnings:0
Passed:2
Media Query Responsive Test
Congratulations, your website uses media query technique, which is the base for responsive design functionalities.

Advanced SEO
Score:30
Failed:3
Warnings:0
Passed:3
Microdata Schema Test
Your webpage doesn't take the advantages of HTML Microdata specifications in order to markup structured data. View Google's guide for getting started with microdata.
SPF Records Checker
Your DNS server is not using an SPF record. SPF (Sender Policy Framework) allows administrators to specify which hosts are allowed to send mail from a given domain by creating a specific SPF record or TXT record in the Domain Name System (DNS). You can find more information about SPF records here.
