Sls.eff.org - SEO Checker

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Overview of the SEO Check
Meta information
75% 
Page quality
76% 
Page structure
100% 
Link structure
45% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.22 s
File size
26.30 kB
Words
538
Media files
19
Number of links
59 internal / 24 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Street Level Surveillance
The length of the page title is perfect. (225 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Server location: United States of America
The language is not specified in the HTML markup.
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
csrf-paramauthenticity_token
csrf-tokenqX8Ha6TvDRn2tXra9990BgRX1UVmtHFa5uOVKhbauyepctFUoEvhPzRfBH9WLkcBj1Y6nMVzFx1IR63xbWuMTA==
viewportwidth=device-width, initial-scale=1.0
twitter:site@eff
twitter:creator@eff
twitter:cardsummary_large_image
og:urlhttps://sls.eff.org/
og:titleStreet Level Surveillance
og:typewebsite
og:imagehttps://sls.eff.org/files/sls/front_page/banner_attachment/file/48/SLS-OG-1.png
og:image:width1200
og:image:height600
og:descriptionEFF Presents: A Field Guide to Police Surveillance
charsetutf-8

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Page quality

Content
(Critically important)
The average number of words per sentence of 29.38 words is high.
This page contains 538 words. That's ok.
30.5% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
6 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 11 tags for this page.
Image SEO
(Somewhat important)
16 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
This page is optimized perfectly for social networks.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
...704d2e1a7407a359a616057f4e7917cd7a26.svgElectronic Frontier Foundation
...3b07657c141b646dc37047e18a7d4622854e.svgglobe
...ttachment/file/24/SLS-icon-ALPR-2023.jpgNo alt attribute provided
...ment/file/18/SLS-icon-biometric-2023.jpgNo alt attribute provided
...chment/file/17/SLS-icon-bodycam-2023.jpgNo alt attribute provided
...le/16/SLS-icon-camera-network-2-2023.jpgNo alt attribute provided
...hment/file/11/SLS-icon-cellsite-2023.jpgNo alt attribute provided
...tachment/file/10/SLS-icon-Drone-2023.jpgNo alt attribute provided
...n_attachment/file/19/SLS-facial-2023.jpgNo alt attribute provided
...LS-electronic-monitoring-2023-SQUARE.jpgNo alt attribute provided
...hment/file/8/SLS-icon-gunshot-2-2023.jpgNo alt attribute provided
...ent/file/47/SLS-forensic-2023-SQUARE.pngNo alt attribute provided
...nt/file/6/SLS-police-access-IoT-2023.jpgNo alt attribute provided
.../file/5/SLS-predictive-policing-2023.jpgNo alt attribute provided
...con-community-surveillance-apps-2023.jpgNo alt attribute provided
...ttachment/file/3/SLS-locational-2023.jpgNo alt attribute provided
...20/SLS-socialmedia-surveillance-2023.jpgNo alt attribute provided
...ent/file/21/SLS-icon-database-2-2023.jpgNo alt attribute provided
...75fa97ae13f73f527b91b0c66b55ae9b5b0f.svgElectronic Frontier Foundation

Page structure

H1 heading
(Critically important)
Street Level Surveillance
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Street Level Surveillance
H2 Technologies
H2 About
H2 Donate
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
16 links don't have an anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are 24 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://sls.eff.org/Anchor Skip to main content
https://sls.eff.org/Street Level Surveillance
https://sls.eff.org/Technologies
/technologies/automated-licens...Automated License Plate Readers
/technologies/biometric-survei...Biometric Surveillance
/technologies/body-worn-camerasBody-Worn Cameras
/technologies/surveillance-cam...Surveillance Camera Networks
/technologies/cell-site-simula...Cell-Site Simulators/ IMSI Catchers
/technologies/drones-and-robotsDrones and Robots
/technologies/face-recognitionFace Recognition
/technologies/electronic-monit...Electronic Monitoring
/technologies/gunshot-detectionGunshot Detection
/technologies/forensic-extract...Forensic Extraction Tools
/technologies/police-access-to...Police Access to IoT Devices
/technologies/predictive-policingPredictive Policing
/technologies/community-survei...Community Surveillance Apps
/technologies/real-time-locati...Real-Time Location Tracking
/technologies/social-media-mon...Social Media Monitoring
/technologies/police-databasesPolice Databases
https://sls.eff.org/About
https://sls.eff.org/articlesNews
https://atlasofsurveillance.org/External Atlas of Surveillance
https://eff.org/spotExternal Spot the Surveillance
https://ssd.eff.org/External Subdomain Surveillance Self Defense
https://sls.eff.org/Text duplicate Technologies
/?class=scrollyText duplicate About
https://sls.eff.org/articlesText duplicate News
https://atlasofsurveillance.org/External Atlas Of Surveillance
https://eff.org/spotExternal Spot The Surveillance
https://ssd.eff.org/External Subdomain Text duplicate Surveillance Self Defense
https://www.facebook.com/effExternal Subdomain Fb
https://twitter.com/effExternal Twitter
https://www.eff.org/rssExternal Subdomain Rss
https://www.eff.org/effectorExternal Subdomain Subscribe
https://www.facebook.com/share...New window External Subdomain Facebook
A-TITLE Share on Facebook
https://twitter.com/intent/twe...New window External Text duplicate Twitter
A-TITLE Share on Twitter
https://sls.eff.org/Anchor ≡
https://eff.org/New window External IMG-ALT Electronic Frontier Foundation
https://sls.eff.org/Subdomain English
https://sls.eff.org/es/Subdomain Español
/technologies/automated-licens...No Text
/technologies/automated-licens...Text duplicate Automated License Plate Readers
/technologies/biometric-survei...No Text
/technologies/biometric-survei...Text duplicate Biometric Surveillance
/technologies/body-worn-camerasNo Text
/technologies/body-worn-camerasText duplicate Body-Worn Cameras
/technologies/surveillance-cam...No Text
/technologies/surveillance-cam...Text duplicate Surveillance Camera Networks
/technologies/cell-site-simula...No Text
/technologies/cell-site-simula...Text duplicate Cell-Site Simulators/ IMSI Catchers
/technologies/drones-and-robotsNo Text
/technologies/drones-and-robotsText duplicate Drones and Robots
/technologies/face-recognitionNo Text
/technologies/face-recognitionText duplicate Face Recognition
/technologies/electronic-monit...No Text
/technologies/electronic-monit...Text duplicate Electronic Monitoring
/technologies/gunshot-detectionNo Text
/technologies/gunshot-detectionText duplicate Gunshot Detection
/technologies/forensic-extract...No Text
/technologies/forensic-extract...Text duplicate Forensic Extraction Tools
/technologies/police-access-to...No Text
/technologies/police-access-to...Text duplicate Police Access to IoT Devices
/technologies/predictive-policingNo Text
/technologies/predictive-policingText duplicate Predictive Policing
/technologies/community-survei...No Text
/technologies/community-survei...Text duplicate Community Surveillance Apps
/technologies/real-time-locati...No Text
/technologies/real-time-locati...Text duplicate Real-Time Location Tracking
/technologies/social-media-mon...No Text
/technologies/social-media-mon...Text duplicate Social Media Monitoring
/technologies/police-databasesNo Text
/technologies/police-databasesText duplicate Police Databases
https://eff.org/slsgiveExternal Donate to EFF
https://eff.org/External Text duplicate IMG-ALT Electronic Frontier Foundation
https://www.eff.org/policyExternal Subdomain Privacy Policy
https://www.eff.org/about/contactExternal Subdomain Contact
https://www.eff.org/copyrightExternal Subdomain Copyright (CC-BY)
https://www.facebook.com/effExternal Subdomain Text duplicate Facebook
https://twitter.com/effExternal X
https://www.eff.org/rssExternal Subdomain RSS
https://www.eff.org/effectorExternal Subdomain Text duplicate Subscribe
https://www.facebook.com/share...New window External Subdomain Text duplicate Facebook
A-TITLE Share on Facebook
https://twitter.com/intent/twe...New window External Text duplicate X
A-TITLE Share on Twitter

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://sls.eff.org/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.22 seconds.
The file size of the HTML document is fine (26 kB).

HTTP Response Header

NameValue
cache-controlpublic
content-encodinggzip
content-typetext/html; charset=utf-8
etagW/"d8aba260914e9b072d313cd797726762"
last-modifiedThu, 14 Dec 2023 18:32:54 GMT
referrer-policystrict-origin-when-cross-origin
servernginx/1.23.0
x-content-type-optionsnosniff
x-download-optionsnoopen
x-frame-optionsSAMEORIGIN
x-permitted-cross-domain-policiesnone
x-request-id86f431a5-6c7f-4902-ae39-be4d278d575c
x-runtime0.189230
x-xss-protection1; mode=block
accept-rangesbytes
age0
dateThu, 26 Dec 2024 10:12:55 GMT
via1.1 varnish
x-served-bycache-fra-etou8220121-FRA
x-cacheHIT
x-cache-hits0
x-timerS1735207975.925096,VS0,VE188
strict-transport-securitymax-age=300
content-length6971
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 305 referring domains.
This page has 32,459 backlinks.
This page has backlinks from 241 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

# See https://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file

Similar sites

Search preview

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
Surveillance63%Check
Street62%Check
Level62%Check
Street Level Surveillance62%Check
surveillance technologies51%Check
EFF48%Check
Technologies38%Check
Donate38%Check
Electronic38%Check
Electronic Monitoring37%Check
Show more keywords and terms

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