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2a03:b0c0:3:d0::d24:5001 Public Scan

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URL:
https://os.phil-opp.com/paging-implementation/
Submission: On March 17 via automatic, source hackernews (March 17th 2019, 10:01:20 am UTC)

Summary HTTP 25 Redirects Links 47 Behaviour Indicators

Summary

This website contacted 5 IPs in 3 countries across 3 domains to perform 25 HTTP transactions. The main IP is 2a03:b0c0:3:d0::d24:5001, located in Netherlands and belongs to DIGITALOCEAN-ASN - DigitalOcean, LLC, US. The main domain is os.phil-opp.com.
TLS certificate: Issued by Let's Encrypt Authority X3 on March 10th 2019. Valid for: 3 months.

This is the only time os.phil-opp.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
17	2a03:b0c0:3:d... 2a03:b0c0:3:d0::d24:5001	14061 (DIGITALOC...) (DIGITALOCEAN-ASN - DigitalOcean)
4	13.35.254.118 13.35.254.118	16509 (AMAZON-02) (AMAZON-02 - Amazon.com)
1	2606:4700:30:... 2606:4700:30::681c:1d78	13335 (CLOUDFLAR...) (CLOUDFLARENET - Cloudflare)
2	2a00:d0c0:200... 2a00:d0c0:200:0:b9:1a:9c:71	58010 (UVENSYS) (UVENSYS)
1	2606:4700:30:... 2606:4700:30::681c:1c78	13335 (CLOUDFLAR...) (CLOUDFLARENET - Cloudflare)
25	5

17 2a03:b0c0:3:d0::d24:5001 (Netherlands)

ASN14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US)

os.phil-opp.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 13.35.254.118 (Seattle, United States)

ASN16509 (AMAZON-02 - Amazon.com, Inc., US)
PTR: server-13-35-254-118.fra6.r.cloudfront.net

d33wubrfki0l68.cloudfront.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700:30::681c:1d78 (United States)

ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US)

utteranc.es	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:d0c0:200:0:b9:1a:9c:71 (Germany)

ASN58010 (UVENSYS, DE)

fathom.phil-opp.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700:30::681c:1c78 (United States)

ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US)

utteranc.es	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
19	phil-opp.com os.phil-opp.com fathom.phil-opp.com	304 KB
4	cloudfront.net d33wubrfki0l68.cloudfront.net	13 KB
2	utteranc.es utteranc.es	2 KB
25	3

	Domain	Requested by
17	os.phil-opp.com	os.phil-opp.com
4	d33wubrfki0l68.cloudfront.net	os.phil-opp.com
2	fathom.phil-opp.com	os.phil-opp.com
2	utteranc.es	os.phil-opp.com utteranc.es
25	4

This site contains links to these domains. Also see Links.

Domain
github.com
news.ycombinator.com
en.wikipedia.org
docs.rs
doc.rust-lang.org
donorbox.org
www.patreon.com
liberapay.com

Subject Issuer	Validity	Valid
os.phil-opp.com Let's Encrypt Authority X3	`2019-03-10` - `2019-06-08`	3 months	crt.sh
*.cloudfront.net DigiCert Global CA G2	`2018-10-08` - `2019-10-09`	a year	crt.sh
sni183900.cloudflaressl.com COMODO ECC Domain Validation Secure Server CA 2	`2019-02-26` - `2019-09-04`	6 months	crt.sh
fathom.phil-opp.com Let's Encrypt Authority X3	`2019-02-18` - `2019-05-19`	3 months	crt.sh

This page contains 2 frames:

Primary Page: https://os.phil-opp.com/paging-implementation/
Frame ID: FE21A97583FD919362481D2ACB874874
Requests: 24 HTTP requests in this frame

Frame: https://utteranc.es/utterances.html?src=https%3A%2F%2Futteranc.es%2Fclient.js&repo=phil-opp%2Fblog_os&issue-term=url&label=comments&crossorigin=anonymous&async=&url=https%3A%2F%2Fos.phil-opp.com%2Fpaging-implementation%2F&origin=https%3A%2F%2Fos.phil-opp.com&pathname=paging-implementation%2F&title=Paging%20Implementation%20%7C%20Writing%20an%20OS%20in%20Rust&description=&og%3Atitle=
Frame ID: D66CA0D0BDF735D4CC1E53E34CA203DB
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Detected technologies

Netlify (Web Servers) Expand

Overall confidence: 100%
Detected patterns

headers server /Netlify/i

TrackJs (Analytics) Expand

Overall confidence: 100%
Detected patterns

script /tracker.js/i

Page Statistics

25
Requests

100 %
HTTPS

80 %
IPv6

3
Domains

4
Subdomains

5
IPs

3
Countries

318 kB
Transfer

606 kB
Size

2
Cookies

47 Outgoing links

These are links going to different origins than the main page.

URL: https://github.com/phil-opp/blog_os
Title: GitHub

Search URL Search Domain Scan URL

URL: https://github.com/phil-opp/blog_os/tree/post-10
Title: post-10

Search URL Search Domain Scan URL

URL: https://news.ycombinator.com/item?id=19017995
Title: negative feedback

Search URL Search Domain Scan URL

URL: https://github.com/phil-opp/blog_os/issues/545
Title: different approach

Search URL Search Domain Scan URL

URL: https://github.com/rust-osdev/bootloader/blob/master/Changelog.md
Title: bootloader changelog

Search URL Search Domain Scan URL

URL: https://github.com/rust-osdev/x86_64/blob/master/Changelog.md
Title: x86_64 changelog

Search URL Search Domain Scan URL

URL: https://en.wikipedia.org/wiki/Memory-mapped_file
Title: memory-mapping a file

Search URL Search Domain Scan URL

URL: https://en.wikipedia.org/wiki/Page_%28computer_memory%29#Multiple_page_sizes
Title: huge pages

Search URL Search Domain Scan URL

URL: https://en.wikipedia.org/wiki/Octal
Title: octal

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.2/x86_64/structures/paging/struct.RecursivePageTable.html
Title: RecursivePageTable

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/cargo/reference/manifest.html#the-features-section
Title: cargo features

Search URL Search Domain Scan URL

URL: https://docs.rs/bootloader/0.3.11/bootloader/bootinfo/struct.BootInfo.html
Title: BootInfo

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/stable/cargo/reference/specifying-dependencies.html#caret-requirements
Title: semver-incompatible

Search URL Search Domain Scan URL

URL: https://docs.rs/bootloader/0.4.0/bootloader/macro.entry_point.html
Title: entry_point

Search URL Search Domain Scan URL

URL: https://github.com/rust-lang/rfcs/pull/2585
Title: RFC

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/core/iter/trait.Iterator.html#method.enumerate
Title: enumerate

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.1/x86_64/structures/paging/page_table/struct.PageTableEntry.html#method.frame
Title: PageTableEntry::frame

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.1/x86_64/structures/paging/mapper/trait.Mapper.html
Title: Mapper

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.1/x86_64/structures/paging/mapper/trait.Mapper.html#tymethod.translate_page
Title: translate_page

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.1/x86_64/structures/paging/mapper/trait.Mapper.html#tymethod.map_to
Title: map_to

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.1/x86_64/structures/paging/mapper/trait.MapperAllSizes.html
Title: MapperAllSizes

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.1/x86_64/structures/paging/mapper/trait.MapperAllSizes.html#method.translate_addr
Title: translate_addr

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.1/x86_64/structures/paging/mapper/trait.MapperAllSizes.html#tymethod.translate
Title: translate

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.1/x86_64/structures/paging/struct.MappedPageTable.html
Title: MappedPageTable

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/book/ch10-02-traits.html#returning-traits
Title: impl Trait

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.2/x86_64/structures/paging/struct.MappedPageTable.html#method.new
Title: MappedPageTable::new

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/book/ch10-00-generics.html
Title: generic

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.2/x86_64/structures/paging/trait.PageSize.html
Title: PageSize

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/core/result/enum.Result.html
Title: Result

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/core/result/enum.Result.html#method.expect
Title: expect

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.2/x86_64/structures/paging/struct.MapperFlush.html
Title: MapperFlush

Search URL Search Domain Scan URL

URL: https://docs.rs/x86_64/0.5.2/x86_64/structures/paging/struct.MapperFlush.html#method.flush
Title: flush

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/std/result/#results-must-be-used
Title: #[must_use]

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/std/primitive.pointer.html#method.write_volatile
Title: write_volatile

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/core/iter/trait.Iterator.html
Title: Iterator

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/core/iter/trait.Iterator.html#tymethod.next
Title: Iterator::next

Search URL Search Domain Scan URL

URL: https://docs.rs/bootloader/0.4.0/bootloader/bootinfo/struct.MemoryRegion.html
Title: MemoryRegion

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/core/iter/trait.Iterator.html#method.filter
Title: filter

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/core/iter/trait.Iterator.html#method.map
Title: map

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/core/ops/struct.Range.html
Title: range syntax

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/core/iter/trait.Iterator.html#method.step_by
Title: step_by

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/core/iter/trait.Iterator.html#method.flat_map
Title: flat_map

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/alloc/boxed/struct.Box.html
Title: allocate memory

Search URL Search Domain Scan URL

URL: https://doc.rust-lang.org/alloc/collections/index.html
Title: collection types

Search URL Search Domain Scan URL

URL: https://donorbox.org/phil-opp
Title: Donorbox

Search URL Search Domain Scan URL

URL: https://www.patreon.com/phil_opp
Title: Patreon

Search URL Search Domain Scan URL

URL: https://liberapay.com/phil-opp/
Title: Liberapay

Search URL Search Domain Scan URL

Redirected requests

There were HTTP redirect chains for the following requests:

25 HTTP transactions
0 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2 200 Primary Request / Show response
os.phil-opp.com/paging-implementation/ 113 KB
22 KB 34ms
7ms Document
text/html 2a03:b0c0:3:d0::d24:5001
DigitalOcean

General

Check archive.org

Show headers Download Go to

Full URL

https://os.phil-opp.com/paging-implementation/

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d24:5001 , Netherlands, ASN14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US),

Reverse DNS

Software

Netlify /

Resource Hash

30b797a248e5ee7f80eaee207491cc1c81003adc95721b22068dc932b21844ee

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

:method: GET
:authority: os.phil-opp.com
:scheme: https
:path: /paging-implementation/
pragma: no-cache
cache-control: no-cache
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
accept-encoding: gzip, deflate, br
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

status: 200
cache-control: public, max-age=0, must-revalidate
content-type: text/html; charset=UTF-8
date: Fri, 15 Mar 2019 09:47:53 GMT
etag: "cc18e02a02e7b8428e84b5eb5ed69ef9-ssl-df"
strict-transport-security: max-age=31536000
content-encoding: gzip
age: 173591
content-length: 21823
server: Netlify
vary: Accept-Encoding
x-nf-request-id: 6cf74dc3-cf43-44e6-944a-573d43ea2b99-18716106

GET
H2 200 af0d57f3867d03a78fb0921cc47916c32e0bf16d.css
d33wubrfki0l68.cloudfront.net/bundles/ 7 KB
3 KB 73ms
10ms Stylesheet
text/css 13.35.254.118
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://d33wubrfki0l68.cloudfront.net/bundles/af0d57f3867d03a78fb0921cc47916c32e0bf16d.css
Requested by: Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 13.35.254.118 Seattle, United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS: server-13-35-254-118.fra6.r.cloudfront.net
Software: Netlify /
Resource Hash: ab91b4524dccdf5b308f76a3ad9018e0ac67627d7ff2e4f4985dc34516a74a13

Request headers

Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nf-request-id: 9f064753-b0ac-43f0-90d6-a0dc0300b221-26766930
date: Wed, 13 Mar 2019 14:58:09 GMT
content-encoding: gzip
age: 327775
x-cache: Hit from cloudfront
status: 200
content-length: 2148
via: 1.1 a7dcca466407f1871feceef50bc84272.cloudfront.net (CloudFront)
server: Netlify
etag: 9dd1a99112790e261c374a8f0f9e3920c1a2aad6-df
vary: Accept-Encoding
content-type: text/css; charset=utf-8
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accept-ranges: bytes
x-amz-cf-id: uM4N0hmCMp2tHXvInnANLd35hXw9tK8a6vIEhYiNEjHIrGhOGpy3Gg==

GET
H2 200 main.js Show response
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657 B 75ms
13ms Script
application/javascript 13.35.254.118
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://d33wubrfki0l68.cloudfront.net/js/9938b37691e38ff2b5473ad038b97524f59c19b9/js/main.js
Requested by: Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 13.35.254.118 Seattle, United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS: server-13-35-254-118.fra6.r.cloudfront.net
Software: Netlify /
Resource Hash: dc18c54cac94cc409f043f7b1ee557a2d9166718f97ccb6e755ca97663fd733b

Request headers

Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nf-request-id: cf537c91-81c6-491d-b3dc-4fa7f6af996b-583610
date: Tue, 06 Nov 2018 07:46:42 GMT
content-encoding: gzip
age: 11326462
x-cache: Hit from cloudfront
status: 200
content-length: 235
via: 1.1 a7dcca466407f1871feceef50bc84272.cloudfront.net (CloudFront)
server: Netlify
etag: 7b563fab17d6fbf697d7831ff1d751ff3fc7f534-df
vary: Accept-Encoding
content-type: application/javascript
access-control-allow-origin: *
cache-control: public, max-age=31556926
accept-ranges: bytes
x-amz-cf-id: BH7rJMwItywO_dt_s5tNnHrS1FDK9ptXj_XdbRz12KLnFhxuo7G8jg==

GET
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6 KB 73ms
12ms Image
image/svg+xml 13.35.254.118
Amazon.com

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://d33wubrfki0l68.cloudfront.net/124436854aeff3df13c86c3ffd3f676d3142a267/82b62/paging-introduction/x86_64-page-table-translation.svg
Requested by: Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 13.35.254.118 Seattle, United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS: server-13-35-254-118.fra6.r.cloudfront.net
Software: Netlify /
Resource Hash: b8f55c71801cfc2a84900394e27bcf4dff30b71d7bdc724473ea15f3683408fb

Request headers

Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nf-request-id: 56cd9c74-0e8f-4688-a7f0-e6d4b5465d95-4425247
date: Mon, 28 Jan 2019 10:17:04 GMT
content-encoding: gzip
age: 4146241
x-cache: Hit from cloudfront
status: 200
via: 1.1 a7dcca466407f1871feceef50bc84272.cloudfront.net (CloudFront)
server: Netlify
etag: ff2ccbc66338f6fab027ac44db285d47f442c7f6-df
vary: Accept-Encoding
content-type: image/svg+xml
access-control-allow-origin: *
cache-control: public, max-age=31556926
accept-ranges: bytes
x-amz-cf-id: jIfkCvlu8GxsOpORpp9Z9nElduKZplKOEMFav5JBagT81uA7cIdIsw==
x-nf-srv-version: 45aaffea081549dd03a2dfff644cc25cf522edbd

GET
H2 200 identity-mapped-page-tables.svg
os.phil-opp.com/paging-implementation/ 21 KB
4 KB 56ms
17ms Image
image/svg+xml 2a03:b0c0:3:d0::d24:5001
DigitalOcean

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://os.phil-opp.com/paging-implementation/identity-mapped-page-tables.svg

Requested by

Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d24:5001 , Netherlands, ASN14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US),

Reverse DNS

Software

Netlify /

Resource Hash

0071d61698323dbec3052727ffb3eac54e1ca70997ddfa613a82ec1bc14b94d0

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

:path: /paging-implementation/identity-mapped-page-tables.svg
pragma: no-cache
accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: image/webp,image/apng,image/*,*/*;q=0.8
cache-control: no-cache
:authority: os.phil-opp.com
referer: https://os.phil-opp.com/paging-implementation/
:scheme: https
:method: GET
Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nf-request-id: 6cf74dc3-cf43-44e6-944a-573d43ea2b99-18716177
date: Fri, 15 Mar 2019 09:47:53 GMT
content-encoding: gzip
server: Netlify
age: 173591
etag: "35a11700c61a91481bd2763bdbe2b2bd-ssl-df"
vary: Accept-Encoding
content-type: image/svg+xml
status: 200
cache-control: public, max-age=0, must-revalidate
strict-transport-security: max-age=31536000
accept-ranges: bytes
content-length: 3817

GET
H2 200 page-tables-mapped-at-offset.svg
os.phil-opp.com/paging-implementation/ 23 KB
4 KB 55ms
17ms Image
image/svg+xml 2a03:b0c0:3:d0::d24:5001
DigitalOcean

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://os.phil-opp.com/paging-implementation/page-tables-mapped-at-offset.svg

Requested by

Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d24:5001 , Netherlands, ASN14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US),

Reverse DNS

Software

Netlify /

Resource Hash

7c07b497619e70e020b34423f5b04b9190fbbd28dbc28b0599a501b828029ca4

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

:path: /paging-implementation/page-tables-mapped-at-offset.svg
pragma: no-cache
accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: image/webp,image/apng,image/*,*/*;q=0.8
cache-control: no-cache
:authority: os.phil-opp.com
referer: https://os.phil-opp.com/paging-implementation/
:scheme: https
:method: GET
Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nf-request-id: 6cf74dc3-cf43-44e6-944a-573d43ea2b99-18716179
date: Fri, 15 Mar 2019 09:47:53 GMT
content-encoding: gzip
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cache-control: no-cache
:authority: os.phil-opp.com
referer: https://os.phil-opp.com/paging-implementation/
:scheme: https
:method: GET
Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nf-request-id: 6cf74dc3-cf43-44e6-944a-573d43ea2b99-18716193
date: Fri, 15 Mar 2019 09:47:53 GMT
content-encoding: gzip
server: Netlify
age: 173592
etag: "ae4f6fd6a686c44ea611ea1fe28e9af6-ssl-df"
vary: Accept-Encoding
content-type: image/svg+xml
status: 200
cache-control: public, max-age=0, must-revalidate
strict-transport-security: max-age=31536000
accept-ranges: bytes
content-length: 3542

GET
H2 200 qemu-print-level-4-table.png
os.phil-opp.com/paging-implementation/ 15 KB
15 KB 45ms
42ms Image
image/png 2a03:b0c0:3:d0::d24:5001
DigitalOcean

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://os.phil-opp.com/paging-implementation/qemu-print-level-4-table.png

Requested by

Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d24:5001 , Netherlands, ASN14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US),

Reverse DNS

Software

Netlify /

Resource Hash

d0719dfd8a3b065a75fb30c4f41309af07e558bac14ab08fbf0aafcb959b9f9e

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

:path: /paging-implementation/qemu-print-level-4-table.png
pragma: no-cache
accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: image/webp,image/apng,image/*,*/*;q=0.8
cache-control: no-cache
:authority: os.phil-opp.com
referer: https://os.phil-opp.com/paging-implementation/
:scheme: https
:method: GET
Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nf-request-id: 6cf74dc3-cf43-44e6-944a-573d43ea2b99-18716194
date: Fri, 15 Mar 2019 09:47:53 GMT
server: Netlify
age: 173592
etag: "bba32c4644c0c478ba7dd7cb3a1bff1d-ssl"
strict-transport-security: max-age=31536000
content-type: image/png
status: 200
cache-control: public, max-age=0, must-revalidate
accept-ranges: bytes
content-length: 15714

GET
H2 200 qemu-translate-addr.png
os.phil-opp.com/paging-implementation/ 11 KB
11 KB 45ms
42ms Image
image/png 2a03:b0c0:3:d0::d24:5001
DigitalOcean

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://os.phil-opp.com/paging-implementation/qemu-translate-addr.png

Requested by

Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d24:5001 , Netherlands, ASN14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US),

Reverse DNS

Software

Netlify /

Resource Hash

0bc9e04353dca34519b85091ddc45d75b4d7b5381f08d5f616ca53780e03dc59

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

:path: /paging-implementation/qemu-translate-addr.png
pragma: no-cache
accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: image/webp,image/apng,image/*,*/*;q=0.8
cache-control: no-cache
:authority: os.phil-opp.com
referer: https://os.phil-opp.com/paging-implementation/
:scheme: https
:method: GET
Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nf-request-id: 6cf74dc3-cf43-44e6-944a-573d43ea2b99-18716195
date: Fri, 15 Mar 2019 09:47:54 GMT
server: Netlify
age: 173591
etag: "e8bb9a27f39f08cedd03830afaf7c8a6-ssl"
strict-transport-security: max-age=31536000
content-type: image/png
status: 200
cache-control: public, max-age=0, must-revalidate
accept-ranges: bytes
content-length: 10946

GET
H2 200 qemu-mapper-translate-addr.png
os.phil-opp.com/paging-implementation/ 11 KB
11 KB 47ms
45ms Image
image/png 2a03:b0c0:3:d0::d24:5001
DigitalOcean

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://os.phil-opp.com/paging-implementation/qemu-mapper-translate-addr.png

Requested by

Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d24:5001 , Netherlands, ASN14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US),

Reverse DNS

Software

Netlify /

Resource Hash

372452b3de704794434d5bead4553c92d104c3cd3d8fd56f6874bf843045a9a7

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

:path: /paging-implementation/qemu-mapper-translate-addr.png
pragma: no-cache
accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: image/webp,image/apng,image/*,*/*;q=0.8
cache-control: no-cache
:authority: os.phil-opp.com
referer: https://os.phil-opp.com/paging-implementation/
:scheme: https
:method: GET
Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nf-request-id: 6cf74dc3-cf43-44e6-944a-573d43ea2b99-18716196
date: Fri, 15 Mar 2019 09:47:53 GMT
server: Netlify
age: 173592
etag: "e1939d666a064550f25952848d5cf22f-ssl"
strict-transport-security: max-age=31536000
content-type: image/png
status: 200
cache-control: public, max-age=0, must-revalidate
accept-ranges: bytes
content-length: 11058

GET
H2 200 qemu-new-mapping.png
os.phil-opp.com/paging-implementation/ 8 KB
8 KB 47ms
45ms Image
image/png 2a03:b0c0:3:d0::d24:5001
DigitalOcean

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://os.phil-opp.com/paging-implementation/qemu-new-mapping.png

Requested by

Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d24:5001 , Netherlands, ASN14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US),

Reverse DNS

Software

Netlify /

Resource Hash

5743e3a0fb38cddcb8e6c445a61af14633be3232a587cbc701ab94aad0d5e854

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

:path: /paging-implementation/qemu-new-mapping.png
pragma: no-cache
accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: image/webp,image/apng,image/*,*/*;q=0.8
cache-control: no-cache
:authority: os.phil-opp.com
referer: https://os.phil-opp.com/paging-implementation/
:scheme: https
:method: GET
Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nf-request-id: 6cf74dc3-cf43-44e6-944a-573d43ea2b99-18716197
date: Fri, 15 Mar 2019 09:47:54 GMT
server: Netlify
age: 173591
etag: "5c5a6c5f0e710bbd649d76c720b972ab-ssl"
strict-transport-security: max-age=31536000
content-type: image/png
status: 200
cache-control: public, max-age=0, must-revalidate
accept-ranges: bytes
content-length: 8139

GET
H2 200 client.js Show response
utteranc.es/ 2 KB
2 KB 104ms
25ms Script
application/javascript 2606:4700:30::681c:1d78
Cloudflare

General

Check archive.org

Show headers Download Go to

Full URL: https://utteranc.es/client.js
Requested by: Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700:30::681c:1d78 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software: cloudflare /
Resource Hash: 2f57499186f1e064b3f6d51fb53aafa75020d12d8b73183accbdfba05bc7fab7

Request headers

User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Referer: https://os.phil-opp.com/paging-implementation/
Origin: https://os.phil-opp.com

Response headers

x-fastly-request-id: 31dbe79c77e322fc7d91aabd00ebba637c16b1da
date: Sun, 17 Mar 2019 10:01:04 GMT
via: 1.1 varnish
cf-cache-status: HIT
x-cache: HIT
status: 200
content-encoding: br
x-served-by: cache-hhn1527-HHN
last-modified: Mon, 04 Mar 2019 02:58:50 GMT
server: cloudflare
x-github-request-id: 3298:67BD:10F5C1A:1515ED4:5C7D8AB5
x-timer: S1551731447.202286,VS0,VE1
etag: W/"5c7c946a-9b5"
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary: Accept-Encoding
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
expires: Sun, 17 Mar 2019 14:01:04 GMT
cache-control: public, max-age=14400
cf-ray: 4b8e1f9c99509712-FRA
x-cache-hits: 1

GET
H2 200 tracker.js Show response
fathom.phil-opp.com/ 3 KB
2 KB 75ms
10ms Script
application/javascript 2a00:d0c0:200:0:b9:1a:9c:71
UVENSYS

General

Check archive.org

Show headers Download Go to

Full URL

https://fathom.phil-opp.com/tracker.js

Requested by

Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_256_GCM

Server

2a00:d0c0:200:0:b9:1a:9c:71 , Germany, ASN58010 (UVENSYS, DE),

Reverse DNS

Software

nginx /

Resource Hash

9e16355d6c1608cc6036169780deffe1c118a78e6cd7e5015b112d7540e3ada6

Security Headers

Name	Value
Strict-Transport-Security	max-age=172800
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN
X-Xss-Protection	1; mode=block

Request headers

:path: /tracker.js
pragma: no-cache
accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: */*
cache-control: no-cache
:authority: fathom.phil-opp.com
referer: https://os.phil-opp.com/paging-implementation/
:scheme: https
:method: GET
Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date: Sun, 17 Mar 2019 10:01:04 GMT
content-encoding: gzip
referrer-policy: strict-origin-when-cross-origin
last-modified: Sun, 17 Feb 2019 16:34:40 GMT
server: nginx
tk: N
x-frame-options: SAMEORIGIN
content-type: application/javascript
status: 200
x-xss-protection: 1; mode=block
cache-control: max-age=432000
strict-transport-security: max-age=172800
vary: Accept-Encoding
x-content-type-options: nosniff

GET
H2 200 utterances.html
utteranc.es/ Frame D66C 0
0 62ms
31ms Document
text/html 2606:4700:30::681c:1c78
Cloudflare

General

Check archive.org

Show headers Download Go to

Full URL: https://utteranc.es/utterances.html?src=https%3A%2F%2Futteranc.es%2Fclient.js&repo=phil-opp%2Fblog_os&issue-term=url&label=comments&crossorigin=anonymous&async=&url=https%3A%2F%2Fos.phil-opp.com%2Fpaging-implementation%2F&origin=https%3A%2F%2Fos.phil-opp.com&pathname=paging-implementation%2F&title=Paging%20Implementation%20%7C%20Writing%20an%20OS%20in%20Rust&description=&og%3Atitle=
Requested by: Host: utteranc.es
URL: https://utteranc.es/client.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700:30::681c:1c78 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software: cloudflare /
Resource Hash

Request headers

:method: GET
:authority: utteranc.es
:scheme: https
:path: /utterances.html?src=https%3A%2F%2Futteranc.es%2Fclient.js&repo=phil-opp%2Fblog_os&issue-term=url&label=comments&crossorigin=anonymous&async=&url=https%3A%2F%2Fos.phil-opp.com%2Fpaging-implementation%2F&origin=https%3A%2F%2Fos.phil-opp.com&pathname=paging-implementation%2F&title=Paging%20Implementation%20%7C%20Writing%20an%20OS%20in%20Rust&description=&og%3Atitle=
pragma: no-cache
cache-control: no-cache
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
referer: https://os.phil-opp.com/paging-implementation/
accept-encoding: gzip, deflate, br
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Referer: https://os.phil-opp.com/paging-implementation/

Response headers

status: 200
date: Sun, 17 Mar 2019 10:01:05 GMT
content-type: text/html; charset=utf-8
set-cookie: __cfduid=dd2b180c1f342cb881bb31916981d9d9a1552816865; expires=Mon, 16-Mar-20 10:01:05 GMT; path=/; domain=.utteranc.es; HttpOnly
last-modified: Mon, 04 Mar 2019 02:58:50 GMT
access-control-allow-origin: *
expires: Sun, 17 Mar 2019 07:15:24 GMT
cache-control: max-age=600
x-github-request-id: 25BC:49CE:8B68F8:B756CC:5C8DF1B4
via: 1.1 varnish
age: 594
x-served-by: cache-hhn1532-HHN
x-cache: HIT
x-cache-hits: 1
x-timer: S1552816865.069103,VS0,VE1
vary: Accept-Encoding
x-fastly-request-id: a16e294961586c5a6242556e62f52a37180bc297
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
server: cloudflare
cf-ray: 4b8e1f9e9ed79ab2-FRA
content-encoding: br

GET
H2 200 collect
fathom.phil-opp.com/ 42 B
344 B 10ms
9ms Image
image/gif 2a00:d0c0:200:0:b9:1a:9c:71
UVENSYS

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://fathom.phil-opp.com/collect?id=E13vctudMMpsAwf9OMdD&pid=&p=%2Fpaging-implementation%2F&h=https%3A%2F%2Fos.phil-opp.com&r=&u=1&nv=1&ns=1&sid=MUXWM

Requested by

Host: os.phil-opp.com
URL: https://os.phil-opp.com/paging-implementation/

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_256_GCM

Server

2a00:d0c0:200:0:b9:1a:9c:71 , Germany, ASN58010 (UVENSYS, DE),

Reverse DNS

Software

nginx /

Resource Hash

ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629

Security Headers

Name	Value
Strict-Transport-Security	max-age=172800
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN
X-Xss-Protection	1; mode=block

Request headers

:path: /collect?id=E13vctudMMpsAwf9OMdD&pid=&p=%2Fpaging-implementation%2F&h=https%3A%2F%2Fos.phil-opp.com&r=&u=1&nv=1&ns=1&sid=MUXWM
pragma: no-cache
accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: image/webp,image/apng,image/*,*/*;q=0.8
cache-control: no-cache
:authority: fathom.phil-opp.com
referer: https://os.phil-opp.com/paging-implementation/
:scheme: https
:method: GET
Referer: https://os.phil-opp.com/paging-implementation/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

pragma: no-cache
date: Sun, 17 Mar 2019 10:01:04 GMT
referrer-policy: strict-origin-when-cross-origin
server: nginx
tk: N
x-frame-options: SAMEORIGIN
content-type: image/gif
status: 200
cache-control: no-cache, no-store, must-revalidate
x-content-type-options: nosniff
strict-transport-security: max-age=172800
content-length: 42
x-xss-protection: 1; mode=block
expires: Mon, 01 Jan 1990 00:00:00 GMT

Verdicts & Comments Add Verdict or Comment

6 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

2 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

			Domain/Path	Expires	Name / Value
			.utteranc.es/	1970-01-19 08:05:52	Name: __cfduid Value: dd2b180c1f342cb881bb31916981d9d9a1552816865
			os.phil-opp.com/	1970-01-18 23:21:07	Name: _fathom Value: %7B%22isNewVisitor%22%3Afalse%2C%22isNewSession%22%3Afalse%2C%22pagesViewed%22%3A%5B%22%2Fpaging-implementation%2F%22%5D%2C%22previousPageviewId%22%3A%22E13vctudMMpsAwf9OMdD%22%2C%22lastSeen%22%3A1552816864994%7D

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header	Value
Strict-Transport-Security	max-age=31536000

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

d33wubrfki0l68.cloudfront.net
fathom.phil-opp.com
os.phil-opp.com
utteranc.es
13.35.254.118
2606:4700:30::681c:1c78
2606:4700:30::681c:1d78
2a00:d0c0:200:0:b9:1a:9c:71
2a03:b0c0:3:d0::d24:5001
0071d61698323dbec3052727ffb3eac54e1ca70997ddfa613a82ec1bc14b94d0
0bc9e04353dca34519b85091ddc45d75b4d7b5381f08d5f616ca53780e03dc59
0e8da6f36c46d5ce974261e28fa32a5e416ae9507d39b846cb0a117402a29cc4
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3efaf4a42f048e382e19fcf6e31e2a9d42d3d8f9879aa92eedb9f833421cd5e6
5743e3a0fb38cddcb8e6c445a61af14633be3232a587cbc701ab94aad0d5e854
7c07b497619e70e020b34423f5b04b9190fbbd28dbc28b0599a501b828029ca4
890f1d75e7961ee3d2a967508a98537a80d631d3353991c7dd604723cc2af072
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9e16355d6c1608cc6036169780deffe1c118a78e6cd7e5015b112d7540e3ada6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os.phil-opp.com Open in urlscan Pro 2a03:b0c0:3:d0::d24:5001 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Detected technologies

Page Statistics

25 Requests

100 %HTTPS

80 %IPv6

3 Domains

4 Subdomains

5 IPs

3 Countries

318 kBTransfer

606 kBSize

2 Cookies

47 Outgoing links

Redirected requests

25 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

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Verdicts & Comments Add Verdict or Comment

6 JavaScript Global Variables

2 Cookies

Security Headers

Indicators

os.phil-opp.com Open in urlscan Pro
2a03:b0c0:3:d0::d24:5001 Public Scan

Screenshot
Live screenshot

Full Image

25
Requests

100 %
HTTPS

80 %
IPv6

3
Domains

4
Subdomains

5
IPs

3
Countries

318 kB
Transfer

606 kB
Size

2
Cookies

25 HTTP transactions
0 data transactions