theartofpostgresql.com

Read 4 days ago, the first 100 pages. Read it again

Top 50%of the 264,185 sites mttr has read, at #114,996

It scores 79.

A score says pages are well formed. It does not say an assistant cites the site.

Fix this first

Add structured data

79 now86 with itTop 25% from 85

#114,996to#54,40960,587 places up99 of its 100 pages fail it. 1 in 3 ranked sites pass it.

Where it ranks

6 points take it into the top quarter.

Open the leaderboard

Beside it on the board

  1. #114,994therichoutdoors.net79
  2. #114,995lessig.org79
  3. #114,996theartofpostgresql.com79
  4. #114,997webasto.com79
  5. #114,998getsuperiorcleaning.com79

8,476 sites score 79. A tie goes to the site with faster, leaner pages that say more and keep improving.

To the top quarter

  1. 79Now#114,996
  2. 86Add structured dataTop 25%

1 fix. Top 25% starts at 85.

Where it stands

Each stage against the middle site. It leads on every one.

Access35 points92
Middle site
91
Ahead by
1

Worth the mostBring deep pages closer to home+3

Understand30 points60
Middle site
59
Ahead by
1

Worth the mostAdd structured data+7

Trust20 points100
Middle site
98
Ahead by
2

Full marks1 in 4 ranked sites have them

Act15 points57
Middle site
57
Level with it

Worth the mostAdd a tap-to-call link+6

Against a typical site

The readThis siteTypicalAgainst typical
Pages read1004456 more than typical
Links a page171333% above typical
Words a page51439430% above typical
Rules failing somewhere12142 fewer than typical
Half its pages answer in57 ms210 ms73% faster than typical

This siteWorse than typicalTypical, the middle ranked site, worked out each hour

The work, worth the most first

12 fixes. The first 5 are worth the most; each group says the places it lifts the site, counted from where every ranked site scores now.

Open the action plan
FixIts pages that fail it, fewer is betterSites passing
Worth 7 points60,587 places up
Add structured dataUnderstand99 of 1001 in 3
Worth 6 points52,398 places up
Add a tap-to-call linkAct100 of 1001 in 3
Worth 3 points26,539 places up
Bring deep pages closer to homeAccess62 of 1006 in 7
Worth 2 points each17,461 places up each
Fix description lengthsUnderstand68 of 1001 in 11
Describe imagesUnderstand56 of 1002 in 7
Show 7 more fixes
Worth under a point each
Serve a robots.txtAccessAbout the whole site6 in 7
Match structured data to the pageUnderstand1 of 1003 in 7
Add an llms.txtAccessAbout the whole site1 in 4
Link to your profilesTrustAbout the whole site4 in 7
Fix title lengthsUnderstand10 of 1001 in 6
Set a share imageUnderstand7 of 1002 in 7
Use one main headingUnderstand1 of 1001 in 4

How AI reads this site

The first words an assistant reads on its home page.

What an assistant reads first

Home pageWhat it says
TitleThe Art of PostgreSQL: a PostgreSQL book for developers in 2026
DescriptionLearn SQL, performance, and data modeling with real-world techniques — not theory. Master PostgreSQL with a complete, practical system.
First headingThe Art of PostgreSQL
OpeningTurn complex application logic into efficient, scalable SQL queries that run fast in real systems.

1 change so it reads plainly as what it is

  1. Say what kind of business it is in structured data

    Its home page declares no business or organization type, so a machine has to guess what it is.

    Agent instructions

    On theartofpostgresql.com, add JSON-LD to the home page declaring the most particular schema.org type for the business, with its name, address, phone and sameAs links to its own profiles.

  2. Read it again

    mttr reads the site again and says how it reads now.

An estimate made by mttr against 16 lines of work, from its home page before any script runs. It is not what any assistant says about the site. Rethink the direction with us.

Fix theartofpostgresql.com with your agent

Your agent makes the fixes. mttr checks each one. Free.

In the site’s repositorynpx skills add subinternal/mttr
Then tell your agentCheck theartofpostgresql.com with mttr and fix what’s worth the most.

Claude Code, Codex, Cursor or any agent that reads AGENTS.md.

Claude Code, onceclaude mcp add --transport http mttr https://mttr.si/mcp
It needs a free key
Another agent
Read it againChanged something? A site is read at most once every ten minutes.