Website reputation report

sedgewick.io

Last checked 45 minutes ago · Point-in-time assessment

● Evidence is limited

What is this website?

Through my career, I have delivered over 100 invited talks around the country and around the world. This page includes abstracts and the slide presentations

No listed local patterns observedHomepage-only analysis is not a malware clearance. Read the scope and findings below.

60/100Safety Score
70%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History0 Infrastructure88 Website Security95 Security Hygiene35 Transparency55 Reputation50 Operational Stability85
Trust RadarEight observed factors. Select one to inspect its evidence.

How to read this report

Safety Score evaluates observed signals. Evidence Confidence measures how complete, direct, fresh, and consistent those signals are.

No automated scan can guarantee that a website is safe.

Independent evidence brief

What we observed about sedgewick.io

Updated Oct 3, 2026

The latest scan examined 9 public pages on sedgewick.io. Website descriptions below come from the site itself. Registration, connection and threat findings were checked separately.

Purpose and visible content

On its About page, the site says: Through my career, I have delivered over 100 invited talks around the country and around the world. This page includes abstracts and the slide…

  • Talks - Robert SedgewickThrough my career, I have delivered over 100 invited talks around the country and around the world. This…
  • Books - Robert SedgewickMy books are the foundation of my career in research, teaching, and innovation. Each was the outgrowth of…
  • Research - Robert SedgewickThis page provides access to the original research that has been the backbone of my academic career. These…

Registrar and domain history

A reliable creation date was not returned by the registration lookup. The report leaves domain age unverified rather than guessing.

Connection and hosting evidence

The checked homepage returned HTTP 200 in about 1000 ms.

A valid TLS certificate was observed, expiring Dec 22, 2026.

Threat checks and score context

External malware-provider coverage was unavailable. The report does not treat this missing check as a clean result.

Safety Score: 60/100. Evidence Confidence: 70%. These measure different things.

Community reviews of sedgewick.io

No approved visitor reviews yet. Visitor opinions remain separate from the technical Safety Score.

Public content profile

Pages reviewed on sedgewick.io

9 of up to 10 pages

We sampled public pages from this website to understand its subject and contact paths. The titles and short descriptions below come from the website itself. They are not endorsements or independent safety findings.

Robert Sedgewick - Robert SedgewickRobert Sedgewick is the founding chair and the William O. Baker Professor in the Department of Computer Science at Princeton University. Talks - Robert SedgewickThrough my career, I have delivered over 100 invited talks around the country and around the world. This page includes abstracts and the slide presentations Books - Robert SedgewickMy books are the foundation of my career in research, teaching, and innovation. Each was the outgrowth of my teaching at Brown and Princeton, but each also involved a substantial a Research - Robert SedgewickThis page provides access to the original research that has been the backbone of my academic career. These results appear in a variety of journals and Ideas - Robert SedgewickA number of important ideas have informed my 50+ years of teaching and research in computer science, at universities, research laboratories, conferences, and Awards - Robert SedgewickI have been honored and humbled to have receive several important awards for my work. I am proud to present them here because they recognize my efforts, Courses - Robert SedgewickThis page describes and provides access to print, video, and online content for four courses, which I have developed and taught at Princeton and Brown Computer Science - Robert SedgewickComputer Science: An Interdisciplinary Approach is an introductory textbook suitable for use by any college student, of similar scope to well-known introductory textbooks for econo Algorithms - Robert SedgewickAlgorithms surveys the most important computer algorithms in use today and teaches fundamental techniques to the growing number of people in need of knowing them.

Public page evidence

Topics and keywords observed on sedgewick.io

8 phrases

These phrases were extracted locally from sampled public page metadata. They are observations, not search-volume or ranking estimates.

robertTitle, Meta description9 sampled pages
computerTitle, Meta description4 sampled pages
computer scienceTitle, Meta description3 sampled pages
haveMeta description4 sampled pages
researchTitle, Meta description3 sampled pages
careerMeta description3 sampled pages
importantMeta description3 sampled pages
princetonMeta description3 sampled pages

At a glance

Key findings

✓

Report is current

The displayed evidence comes from the published immutable scan.

i

Confidence is separate

Unavailable evidence is shown as missing and never counted as clean.

!

Verify before sensitive actions

Check the exact URL and context before payments, credentials, or downloads.

Fully explainable

Why this score?

Versioned weights
Threat IntelligenceWeight 25%
55/100

Threat providers were unavailable. The neutral uncertainty baseline is not a clean verdict.

Domain HistoryWeight 10%
0/100

Evidence is unavailable.

InfrastructureWeight 10%
88/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
95/100

Observed certificate validity and TLS protocol were checked.

Security HygieneWeight 15%
35/100

Observed security header values were checked for basic protective settings. Empty values, disabled HSTS and unrecognized values receive no credit. This is not a complete browser-policy validation.

TransparencyWeight 5%
55/100

Observed site metadata and About page were checked. Publisher-supplied details are not independently verified.

ReputationWeight 5%
50/100

Popularity is weak context, not proof of safety. Unranked sites use a neutral baseline.

Operational StabilityWeight 15%
85/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLNo signature match in the sampled HTML
Engine version1.5.4
Signature database date (UTC)2026-10-03T06:24:16+00:00
HTML bytes submitted200,761
Phishing.Database · exact hostnameNot listed in this snapshot
Feed downloaded (UTC)2026-10-03T12:00:08+00:00
Hosts in local snapshot386,082

Sampled scripts and pages

Resource analysis incomplete

6 resources checked · 18 script links observed on the homepage. Partial resource coverage.

ClamAV inspects the fetched homepage HTML on our server. New scans also sample up to four linked scripts and two collected internal pages, with size and time limits. Scripts are not executed. Other downloads, private server files and logged-in pages remain outside this check. A signature match needs investigation and can be a false positive. No match is not a whole-site safety guarantee.

Exact hostname lookup uses a downloaded Phishing.Database snapshot. It does not send this domain to an external lookup API or mark sibling subdomains as harmful. Not listed does not mean safe. Snapshot age is download age, not proof that every entry was recently revalidated.

Homepage HTML only · Eight local rule families · local-security-v2

Checks use the fetched page and redirect chain. Scripts are not executed, forms are not submitted, and linked files are not downloaded. This is not a malware clearance.

Page resource inventory

Linked scripts19
Inline scripts8
Embedded frames1
External script hosts1

Counts describe the sampled HTML, not every resource loaded by the browser. External resources are common and are not automatically harmful.

No listed local patterns observed. The limited rule set cannot detect every threat or behavior.

External threat intelligence

Provider coverageNot checked

Local checks do not query external reputation databases. An unavailable check is never a clean result.

Registration

Domain information

Public RDAP observation
Canonical domainsedgewick.io
RegistrarUnavailable
RegisteredUnavailable
Domain ageUnavailable
ExpiresUnavailable
Registry statusesUnavailable
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address104.155.133.44
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNNot detected
Web application firewallNot detected

At a glance

Infrastructure summary

Observed during this scan

A compact view of the connection, DNS and security surface. These observations describe what the scanner could verify at scan time and do not prove ownership or ongoing availability.

HTTP response200 · https://sedgewick.io/
Endpoint104.155.133.44
NetworkUnavailable
CDN and WAFNot detected · Not detected
DNS surface9 records · 2 nameservers · 5 mail exchangers
Protection signals0 security headers · 5 technologies · DNSSEC unknown

Page telemetry

Observed page statistics

Safe metadata only

These counters describe the fetched response and sampled HTML. Script counts describe references in the markup, not a complete browser network log. Cookie counts cover observed response headers.

Response size200,761 bytes
HTTP check duration1,000 ms
Cookies observedUnavailable
Script resources19 · 1 external hosts
Frames and sampled checks1 frames · 6 resources checked

Encrypted transport

TLS certificate

Valid when observed
StatusValid when observed
ProtocolTLSv1.3
IssuercountryName=US, organizationName=Let's Encrypt, commonName=YR1
Valid fromSep 23, 2026
Valid untilDec 22, 2026
Certificate namessedgewick.io

Resolution

DNS footprint

DNSKEY status unknown

DNSKEY presence does not verify the DNSSEC signature chain. Missing records can mean no record was returned or the lookup was unavailable.

A104.155.133.44TTL —
NSdns1.registrar-servers.comTTL —
NSdns2.registrar-servers.comTTL —
MX10 eforward1.registrar-servers.comTTL —
MX10 eforward2.registrar-servers.comTTL —
MX10 eforward3.registrar-servers.comTTL —
MX15 eforward4.registrar-servers.comTTL —
MX20 eforward5.registrar-servers.comTTL —
TXTv=spf1 include:spf.efwd.registrar-servers.com ~allTTL —

DNS observations · no external lookup API

Domain email protection

Exact-host SPF and DMARC observations help the owner investigate email impersonation risks. They are separate from website malware checks and do not change the Safety Score.

SPFPolicy record observed, not fully validated
DMARCNo matching record returned for this exact hostname

What to do next

Review the records with your mail administrator. Inventory legitimate senders and test SPF and DKIM alignment before enforcing a stricter DMARC policy. Fix duplicate records and investigate overly permissive SPF rules.

This bounded check does not send email, probe SMTP, evaluate recursive SPF includes, verify DKIM signatures or apply organizational-domain DMARC inheritance. A missing subdomain record does not prove that no inherited protection exists. A DNS timeout is unknown, not an absent record. A policy record is not proof that messages authenticate successfully.

Responsible disclosure

security.txt

RFC 9116 observation

No readable security.txt file was observed at the standard locations. This is informational and is not evidence of malware.

Browser protections

Security headers

0 observed

Header evidence is unavailable. Missing data is not treated as a clean result or proof of compromise.

Response headers

Cookie protections

Passive observation

No Set-Cookie header was observed on the sampled homepage response. Other pages may set cookies separately.

Detected stack

Technologies

Bootstrap 80% Google Analytics 94% Nginx 93% Tailwind CSS 72% WordPress 95%

Versions are shown only when publicly exposed by the page or response headers. An observed version is not, by itself, proof of a vulnerability.

JavaScript library advisories

4 sampled JavaScript files checked locally with Retire.js. Database snapshot: 2026-10-03T02:40:06.283Z.

jquery 3.7.1 No known advisories matched this version in the database snapshot.
jquery-migrate 3.4.1 No known advisories matched this version in the database snapshot.

A version match is not proof that the website is infected or that an issue is exploitable here. Owners should review the advisory, check whether their code is affected and test an update. Up to four external script files are sampled, not every dependency, inline script or dynamically loaded resource.

Recommended maintenance checks

NginxReview the Nginx branch and keep security patches current. Avoid exposing detailed server version headers.
WordPressKeep WordPress core, themes and plugins updated. Remove unused plugins and review administrator accounts.

About this website

What the site says about itself

Through my career, I have delivered over 100 invited talks around the country and around the world. This page includes abstracts and the slide presentations

View the site's About page ↗

This is publisher supplied information. The independent safety findings are shown separately.

Structured facts

Website identity & response

Public page metadata
Page titleRobert Sedgewick - Robert Sedgewick
First headingUnavailable
DescriptionRobert Sedgewick is the founding chair and the William O. Baker Professor in the Department of Computer Science at Princeton University.
Canonical URLhttps://sedgewick.io/
Final URLhttps://sedgewick.io/
HTTP response200 · text/html; charset=UTF-8 · 1000 ms
Languageen
Structured typesArticle · ImageObject · Organization · Person · VideoObject · WebPage · WebSite
Page page detectedhttps://sedgewick.io/books/About page detectedhttps://sedgewick.io/talks/#quicksort-60th
missing100% evidence confidence
1100% evidence confidence
en100% evidence confidence
1100% evidence confidence
9100% evidence confidence
2100% evidence confidence
5100% evidence confidence
unavailable100% evidence confidence
Dns consistency.cname present100% evidence confidence
Local headers.permissions policy present100% evidence confidence
1100% evidence confidence
Local headers.hsts present100% evidence confidence
Local headers.csp present100% evidence confidence
Local headers.cors wildcard origin100% evidence confidence
Local headers.cors present100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence

Connection path

Redirect chain

0 recorded hops

No redirect hop was recorded for the sampled homepage.

Premium monitoring

Catch downtime and security changes automatically

Regular checks, availability history, and alert emails are reserved for Premium websites. Free reports remain point-in-time scans and do not create recurring server work.

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Compared with the previous scan

What changed

A comparison will appear after the next completed scan.

Explainable matching

Digital fingerprint

fingerprint-v1
steady-beacon-arc-057

Comparable components help find technically related websites. A match does not prove common ownership.

DnsHashed private comparison value
TechnologiesHashed private comparison value

Material changes only

Change history

No meaningful changes recorded yet.

Website icon for sedgewick.io

Visual evidence

Website screenshot

Screenshot of sedgewick.io
Captured once in an isolated browser during this scan. Visual tint is an interface overlay. The original evidence is not duplicated.

For site owners

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Questions about sedgewick.io

FAQ

Still have questions? Contact us →
Is sedgewick.io safe to visit?

The latest Safety Score is 60/100 with 70% Evidence Confidence. This is a point-in-time assessment of observed technical signals, not a guarantee. Check the exact address and avoid entering payment details if anything looks unusual.

Did the scan detect malware on sedgewick.io?

ClamAV found no signature match in the sampled homepage HTML. External scripts, downloads and private server files were not checked. This is not a whole-site malware clearance.

When was sedgewick.io registered?

The registry lookup did not provide a reliable creation date in this scan.

Did sedgewick.io have a valid TLS certificate?

The scanner observed a valid TLS certificate using TLSv1.3. A valid certificate alone does not establish that the site is safe.

How does sedgewick.io describe itself?

The website's About page describes its purpose in the report above. This is publisher-supplied information and is separate from independent security findings.

Can a paid listing change this website's score?

No. Premium placement and owner-supplied pages are labelled separately. Technical evidence, the Safety Score and moderation decisions remain independent.

Share your experience with sedgewick.io

Community reviews are moderated and remain separate from the technical Safety Score.

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