addiscoder.com
64/100 · Good — Likely Safe
Trust Score Breakdown
SSL Certificate
10/10
59 days remaining
Domain Age
10/10
14.9 years old
Safety APIs
8/10
GSB clean, VT not checked
DNSBL Blacklists
8/8
Clean on all 18 lists
WHOIS Transparency
0/8
Owner information is hidden
Security Headers
0/8
Grade: F
HTTP Behavior
7/7
HTTPS redirect active, 1 redirects
Email Security
0/5
Grade: F —
Traffic Rank
0/5
Not ranked in top 1M
Contact Information
5/5
Contact or About page found
Privacy Policy
0/5
No privacy policy detected
Mobile Friendly
4/4
Mobile score: 62/100
Phishing Databases
4/4
Clean — not in phishing databases
Content Safety
0/3
Risk level: medium
Brand Safety
3/3
No brand impersonation detected
Favicon & Content
5/5
Favicon found. 4712 words on homepage.
WHOIS Information
Registrar
GoDaddy.com, LLC
Registration Date
2011-05-18
Expiry Date
2026-05-18
Updated Date
2025-05-19
Domain Age
15 years (very established)
WHOIS Privacy
Enabled (Hidden)
Name Servers
dns1.p02.nsone.net, dns2.p02.nsone.net, dns3.p02.nsone.net, dns4.p02.nsone.net
Domain Status
client delete prohibited
client renew prohibited
client transfer prohibited
client update prohibited
SSL Certificate
Valid
Status
Valid SSL Certificate
Issuer
E8
Issuer Organization
Let's Encrypt
Valid From
2026-04-03
Valid Until
2026-07-02
Days Remaining
59 days
Grade
A
Wildcard
Yes
Subject
*.addiscoder.com
Covered Domains (SAN)
*.addiscoder.com
addiscoder.com
DNS Records
✗ SPF
✗ DKIM
✗ DMARC
SOA Record
mname:
dns1.p02.nsone.net
rname:
hostmaster.nsone.net
serial:
1661046200
refresh:
43200
retry:
7200
expire:
1209600
min-ttl:
3600
IP & Hosting Information
IPv4 Address
13.215.239.219
Hosting Provider
AS16509 Amazon.com, Inc.
Organization
AS16509 Amazon.com, Inc.
ASN
AS16509
Country
SG
City
Singapore
Region
Singapore
Timezone
Asia/Singapore
CDN Detected
Amazon CloudFront
Safety & Threat Detection
Google Safe Browsing
Clean
VirusTotal
Not checked (API key required)
DNSBL Blacklist Check
CleanChecked against 18 DNSBL servers.
All checked servers:
✓ multi.surbl.org
✓ uribl.swinog.ch
✓ dbl.spamhaus.org
✓ uri.blacklist.woody.ch
✓ rhsbl.sorbs.net
✓ nomail.rhsbl.sorbs.net
✓ zen.spamhaus.org
✓ bl.spamcop.net
✓ b.barracudacentral.org
✓ dnsbl.sorbs.net
✓ spam.dnsbl.sorbs.net
✓ cbl.abuseat.org
✓ dnsbl-1.uceprotect.net
✓ psbl.surriel.com
✓ all.s5h.net
✓ rbl.interserver.net
✓ dnsbl.dronebl.org
✓ access.redhawk.org
Phishing Database Check
PhishTank
Not listed — Clean
OpenPhish
Not listed — Clean
Email Security
FProvider: Google
⚠ No SPF record — email spoofing possible
⚠ No DKIM records found — email authenticity unverifiable
⚠ No DMARC record — no policy for failed email authentication
Content Analysis
Medium Risk (33/100)
✓
Login Form: None
✓
Payment Form: None
✓
Obfuscated JS: None
✓
Meta Redirect: None
External Scripts: 7
External iFrames: 0
Google Search Preview
https://addiscoder.com
AddisCoder
No meta description found.
SEO Metrics
Page Title
AddisCoder (10 chars)
Meta Description
Not found
H1 Tags
About
H2 Tags Count
12
Canonical URL
/
Robots.txt
Found
XML Sitemap
Found
Language
en-us
Word Count
4,712
Internal Links
19
External Links
288
Total Images
293 (4 missing ALT)
Favicon
Found
Has Video
No
Schema & Social Markup
✗
Open Graph
✗
Twitter Card
✗
Hreflang
✗
Schema.org
Essential Pages
✗
Privacy Policy
✗
Terms of Service
✗
Contact Page
✓
About Page
Top Keywords
university
90
ababa
55
computer
54
addiscoder
48
science
48
addis
36
school
33
after
32
berkeley
30
engineering
27
H2 Headings (11)
Students
Teaching assistants
2026 Staff
2025 Staff
2024 Staff
2023 Staff
2020 Staff
2019 Staff
2018 Staff
2016 Staff
2011 Staff
CSS & JavaScript Files
CSS (4/11 minified)
✓
https://addiscoder.com/css/highlight.min.css
✓
https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min...
✓
https://cdnjs.cloudflare.com/ajax/libs/academicons/1.8.0/css/academicons.min.css
✓
https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.c...
⚠
https://addiscoder.com/fonts.googleapis.com/css?family=Lato:400,700%7CMerriweath...
⚠
https://addiscoder.com/css/hugo-academic.css
⚠
https://addiscoder.com/css/navcolor.css
⚠
https://addiscoder.com/css/mobile_table.css
⚠
https://addiscoder.com/css/photoswipe.css
⚠
https://addiscoder.com/css/default-skin/default-skin.css
JavaScript (9/13 minified)
⚠
https://addiscoder.com/www.google-analytics.com/analytics.js
⚠
https://cdnjs.cloudflare.com/ajax/libs/autotrack/2.4.1/autotrack.js
✓
https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.4/jquery.min.js
✓
https://cdnjs.cloudflare.com/ajax/libs/jquery.imagesloaded/4.1.2/imagesloaded.pk...
✓
https://cdnjs.cloudflare.com/ajax/libs/gsap/1.19.1/TweenMax.min.js
✓
https://cdnjs.cloudflare.com/ajax/libs/gsap/1.19.1/plugins/ScrollToPlugin.min.js
✓
https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min....
✓
https://cdnjs.cloudflare.com/ajax/libs/jquery.isotope/3.0.4/isotope.pkgd.min.js
⚠
https://addiscoder.com/js/hugo-academic.js
✓
https://addiscoder.com/js/photoswipe.min.js
Technology Detection
⚙
Web Server
Netlify
📈
Analytics & Tracking
Google Analytics (UA)
All Detected Technologies
Netlify
Google Analytics (UA)
62
Mobile Score
PageSpeed Insights
89
Desktop Score
PageSpeed Insights
Core Web Vitals
| Metric | Mobile | Desktop |
|---|---|---|
| First Contentful Paint (FCP) | 4.2 s | 1.2 s |
| Largest Contentful Paint (LCP) | 8.6 s | 1.4 s |
| Cumulative Layout Shift (CLS) | 0 | 0 |
| Time to Interactive (TTI) | 8.6 s | N/A |
Page Statistics
Total Page Size
4243.3 KB
HTTP Requests
258
Mobile Friendly
Yes
HTTP Information
HTTP Status
200
Response Time
712 ms
Load Time
712 ms
GZIP Compression
Disabled
HTTPS Redirect
Yes
WWW Redirect
No
Redirect Count
1
Final URL
https://www.addiscoder.com/
Security Headers
F
✓
HSTS
max-age=31536000
✗
Content-Security-Policy
Missing
✗
X-Frame-Options
Missing
✗
X-XSS-Protection
Missing
✗
X-Content-Type-Options
Missing
✗
Referrer-Policy
Missing
✗
Permissions-Policy
Missing
Redirect Chain
1
HTTP/2 301
https://www.addiscoder.com/
2
HTTP/2 200
Final destination
Server Location
Singapore, Singapore, SG
|
AS16509 Amazon.com, Inc.
Response Time
712ms
Average
0ms
500ms
1500ms
3000ms+
WAF & CDN Detection
CDN
Not detected
Web Application Firewall
Not detected
Web Server
Netlify
HTTPS Redirect
HTTP → HTTPS active
Mobile Friendliness
Mobile Friendly
Viewport Meta
Present
62
Mobile Score
out of 100
Viewport Tag
width=device-width, initial-scale=1
Shared Hosting / Reverse IP
7 other domainsOther domains hosted on 13.215.239.219:
robots.txt & Sitemap
✓
robots.txt
Found
✓
sitemap.xml
Found
robots.txt Preview
Redirecting to https://www.addiscoder.com/robots.txt
Common Ports
Based on standard web service detection:
HTTP
:80
HTTPS
:443
FTP
:21
SSH
:22
SMTP
:25
MySQL
:3306
Social Media Presence
Contact Information
Email Addresses
admin@addiscoder.com
Domain History (Wayback Machine)
First Archived
2013-05-23
User Reviews
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Frequently Asked Questions
Is addiscoder.com safe?
Score 64/100. Looks safe.
Is addiscoder.com legit?
15 years (very established) old. SSL active.
Who owns addiscoder.com?
Registrar: GoDaddy.com, LLC. WHOIS private.
Is addiscoder.com blacklisted?
Not blacklisted.
When was addiscoder.com created?
Registered 2011-05-18.
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