Landmark21 Web Sides
aio.online List your site across the whole network — one submit Submit once on aio.online and get listed on 500+ web directories at the same time. Get listed on 500+ sites →
Open-web pressing · MMXXVI

Landmark21

A catalogued reference of 830 websites across 22 subject sections — browse by section or submit a site for the record.

Tracks855
Sides22
Pressing feeFree
Open to Submissions

Add Your Site to the Landmark21 Catalogue

Landmark21 accepts submissions from proprietors of any legitimate website. Submit your domain, select a section, and provide a brief description — the editorial team will review and, if approved, add your record to the catalogue. Listing is free of charge. Approved entries are preserved without time limit.

+ Cut your site

Now spinning

Side A — all sides
A1

Amusements, Games & Wagering

3377win.fun · 3a1588.com · 609club.net
119
A2

Animal Husbandry & Veterinary Care

alphagroomingpetsalon.com · artpetgrooming.com · celticstarkennels.com
12
A3

Building Trades & Property Works

3leteam.com · arzhomeremodeling.com · biohazardplus.com
48
A4

Companionship & Social Register

afrohot.com · allhomemeters.com · bestsexpositions.com
33
A5

Computing Sciences & Digital Technology

a2baudiovisual.co.uk · amodinisystems.com · climatechservices.co.uk
48
A6

Conveyance & Transit Records

1autoparts.com · acilmotokurye.org · akcenotomat.com
25
A7

Digital Promotion & Online Commerce

aimarketing.com.hk · birinciseo.com.tr · blinkbid.com
32
A8

Domestic Furnishings & Interior Arts

aunar3d.com · celticheritageinteriors.co.uk · divan-matras.com
25
A9

Fiscal Affairs & Digital Currency

2nd-mortgage.tw · aegis.insurance · avis-goldenoil.com
37
A10

Instruction & Learned Societies

ashianapublicschool.com · autoescola-autoroute.com · bawakeerschools.com
21
A11

Itineraries, Wayfaring & Destinations

3sixtykiteschooltarifa.com · a-sparks.com · a-sparks.com.ua
34
A12

Legal Counsel & Jurisprudence

ajalawfirm.com · boardwalklaw.ca · eli-uk.com
17
A13

Manufacturing & Industrial Works

bimakskimya.com.tr · deepmould.net · diplast.com
20
A14

Medical Practice & Wellness Records

101apotheek.com · 123psychiatry.com · acmelaser.com
66
A15

Miscellany & Unclassified Holdings

123caaarts.com · 1777hoya.com · aabb.co.com
189
A16

Official Records & Credentials

dvsadocs.com · eboost.gg · europedocvault.com
11
A17

Oral Health & Dental Practice

92dental.co.uk · altmoredentalpractice.co.uk · anthamgroup.com
41
A18

Periodicals, Press & Publications

1966films.com · a-drones.com · aivid.video
30
A19

Personal Adornment & Grooming Arts

aobiomecosmetics.com · hairtrans.net · jorgejuanjoyeros.es
12
A20

Property Registers & Dwelling Records

homerunimprovement.com · mik-location.com · myhomequote.com
5
A21

Provisions, Victuals & Beverage

caterspeed.co.uk · comprarcapsulas.com · dispensadorchile.cl
18
A22

Typographic Arts & Print Services

cartridgeworld.gr · cemsatex.com · drukowalnia.pl
12

Sleeve notes

What is Landmark21?

Landmark21 is a catalogued web directory that maintains archival records for 830 approved websites across 22 subject sections. The catalogue is maintained according to descriptive archival principles: entries are organised by subject, preserved as submitted, and made freely available for browsing.

Is it free to add my site?

Yes. Submission to Landmark21 is free of charge. Proprietors of any legitimate website may use the submission form to enter their domain, select a section, and provide a brief description for review. Approved listings are held in the catalogue without expiry.

How are websites organised within the directory?

Landmark21 uses a controlled set of 22 subject sections, each covering a distinct domain of activity — from Fiscal Affairs & Digital Currency to Itineraries, Wayfaring & Destinations. Each submitted site is assigned to the section that best matches its principal subject matter at the time of cataloguing.

How do I submit a site?

Visit the Add a Site page, enter your domain, select the most appropriate section from the list of 22, and provide a concise description of the site's purpose. The submission is then reviewed; if approved, your record is added to the Landmark21 catalogue.

Do you review submissions before adding them?

Yes. All submissions are reviewed before being admitted to the catalogue. We look for sites that are functional, accurately described, and relevant to the section selected. The review process is typically completed within a few working days.

Can I update my listing after it has been added?

If your site has changed significantly since it was first catalogued, you are welcome to resubmit an updated description via the submission form. The editorial team will review the revised entry and update the record accordingly.

What kinds of sites are not accepted?

Landmark21 does not admit sites that are non-functional, that misrepresent their content in the submitted description, or that fall outside the scope of the available sections. The editorial team reviews each submission and applies these criteria before approving a record.

About the pressing

Landmark21 is a structured catalogue of the open web, maintaining archival records for 830 approved websites across 22 topical sections. The directory operates on the archivist's principle: preserve the record, describe what is there, and let the researcher draw conclusions. Entries span twenty-two subject areas, from Amusements, Games & Wagering to Itineraries, Wayfaring & Destinations, covering the full breadth of commercial and informational web presence. Each record preserves the submitted domain, title, and description alongside the section assigned at the time of cataloguing. Landmark21 accepts new submissions on a rolling basis: proprietors of any legitimate website may enter their details via the submission form for consideration.