How To Spot A Bad Astrology Site

Most astrology sites are not doing what they appear to be doing. Distinguishing them takes about a minute if you know what to look at, and the tests are all things a reader can apply without knowing any astrology.

Tell One: It Gives A Rising Sign Without A Birth Time

This is the clearest single tell. The ascendant advances through all twelve signs every twenty-four hours, so a rising sign calculated from a date alone has roughly a one-in-twelve chance of being right. Any rising sign calculator that does not ask for a time and a place is either assuming noon or returning something arbitrary.

The same applies to a site that asks for a time but not a place. Latitude changes the answer, and so does the time zone that was in force on the date – which is not the same as the zone in force there today.

Tell Two: Fixed Sun Sign Dates

If a site says Aries runs from March 21 to April 19 every year without qualification, it is using a table rather than a calculation. The sun crosses each sign boundary at a specific moment that drifts by about six hours a year and resets at each leap year, which is why a proper sun sign calculator asks for the birth year.

This only matters if you were born within a day of a boundary, but for those people it decides the answer entirely, and a site using a fixed table will confidently give a substantial number of them the wrong sign.

Tell Three: No House System Named

There are more than a dozen house systems and they produce different results for the same birth. A chart tool that does not say which one it used – Placidus, Whole Sign, Equal, Koch – is withholding information you need to interpret its output.

A related tell: a site that produces a Placidus chart for a birth above the Arctic Circle without comment. Placidus is mathematically undefined there. A tool that returns houses anyway is not calculating, it is filling in.

Tell Four: Everything Is Flattering

Read the profile of a sign belonging to someone you find difficult. If it is generous and admirable, the site flatters all twelve signs in rotation, and its account of your sign is telling you nothing.

A description that cannot be wrong about anybody cannot be right about anybody either.

Tell Five: Certainty Where There Should Be None

Watch for confident claims about what will happen, guarantees about compatibility, and any tool that never says it cannot answer. Real calculations have edge cases: dates outside a verified range, births near a sign boundary, missing birth times.

A tool that always produces a clean answer regardless of input is not handling those cases – it is ignoring them. The willingness to say “we cannot answer this precisely, and here is why” is the strongest available signal that the rest of the answers are real.

And One Non-Tell

A site disagreeing with another site is not evidence that either is wrong. Western and Vedic astrology use different zodiacs and will give you different signs. Different house systems put planets in different houses. Those are genuine methodological disagreements, and a site that names its method is behaving correctly even when its answer differs from one that does not.